SpeedCrunch
SpeedCrunch is a lightweight, open-source desktop calculator. It has a simple, clean interface and supports standard calculator functions, variables, user-defined functions, type conversion, complex numbers, custom constants, and other advanced math features.
math
calculator
desktop
opensource
SpeedCrunch: Lightweight Open-Source Desktop Calculator
A simple, clean interface calculator with standard functions, variables, user-defined functions, type conversion, complex numbers, custom constants and advanced math features.
What is SpeedCrunch?
SpeedCrunch is an open-source, cross-platform desktop calculator that focuses on providing advanced mathematical functions in a simple, easy-to-use graphical interface. It is designed to be very lightweight and responsive while supporting a wide range of calculations.
Some key features of SpeedCrunch include:
- Standard calculator functions - addition, subtraction, multiplication, division, percentages, memory, etc.
- Support for variables and user-defined functions
- Automatic type conversion between fractions, decimals, and scientific notation
- Complex number and interval arithmetic support
- Base conversion between binary, decimal, and hexadecimal
- Custom constants like pi, e, etc.
- Statistical functions including averages, factorials, random numbers
- Adjustable precision and angle modes (radians/degrees)
- Plug-in support for extending functionality
- Completely free and open-source (Qt framework)
SpeedCrunch aims to provide a balance between power and simplicity. Its goal is to handle both basic and more advanced mathematical operations while remaining intuitive and responsive for users. The simple interface gets out of the way so users can focus on their calculations and rely on SpeedCrunch for everything from basic arithmetic to complex equations.
SpeedCrunch Features
Features
- Standard calculator functions
- Variables
- User-defined functions
- Type conversion
- Complex numbers
- Custom constants
- Advanced math features
Pricing
- Open Source
Pros
Lightweight and fast
Clean and simple interface
Open source and free
Supports advanced math functions
Cons
Limited documentation
Fewer features than some commercial calculators
Basic UI lacking customization
Official Links
The Best SpeedCrunch Alternatives
Top Office & Productivity and Calculators and other similar apps like SpeedCrunch
Here are some alternatives to SpeedCrunch:
Suggest an alternative ❐
Windows Calculator
Windows Calculator is a basic calculator application included in all versions of Microsoft Windows. It provides standard calculator functions like basic arithmetic, percentages, square roots, etc. as well as scientific calculator functions.Some key features of Windows Calculator:Supports basic arithmetic like addition, subtraction, multiplication, and divisionHas dedicated keys for percentage, square...
Google Calculator
Google Calculator is a free web-based calculator offered by Google. It provides standard, scientific, and programmer calculator functionality for fast mathematical calculations and unit conversions right in your web browser.Some key features of Google Calculator include:Perform basic arithmetic like addition, subtraction, multiplication, and divisionDo scientific calculations such as trigonometric, logarithmic,...
Soulver
Soulver is a smart calculator app developed by Acqualia Software. It allows you to enter mathematical equations and calculations in simple plaintext, without having to worry about proper syntax or order of operations.What makes Soulver unique is its natural language processing engine. You can type calculations like "What is the...
RealCalc Scientific Calculator
RealCalc Scientific Calculator is a powerful calculator app for Android. It offers a wide range of mathematical and scientific features beyond a basic calculator, allowing users to perform advanced calculations with ease.RealCalc provides functions for trigonometry, logarithms, exponentials, fractions, permutations, statistics and more. It has a clean, intuitive interface that...
Numi
Numi is a feature-rich calculator application designed exclusively for Mac. It stands out with its aesthetically pleasing and highly functional interface.At its core, Numi provides the standard calculator functions you would expect - addition, subtraction, multiplication, division, percentages, memory keys etc. But it packs in a lot more advanced features...
Mathway
Mathway is an online math problem solver and calculator that provides step-by-step explanations. It can solve problems ranging from basic math, algebra, trigonometry, calculus, and more. Mathway is useful for:Students - to check homework answers, improve understanding of concepts through detailed steps, and study math.Teachers - to generate examples and...
Parsify® for Desktop
Parsify® for Desktop is a desktop application designed to help individuals and teams organize, search, access, and share files and content across multiple platforms and devices. Key features include:File tagging and meta-data: Add custom tags and metadata to files to make them easier to categorize and search.Universal search: Quickly search...
NoteCalc
NoteCalc is a free and open-source spreadsheet and note-taking software application for Windows. Developed as an alternative to proprietary software like Microsoft Excel, NoteCalc aims to provide core spreadsheet functionality along with the ability to store rich-text notes.As a spreadsheet program, NoteCalc offers features like cells, formulas, functions, charts, and...
PCalc
PCalc is a powerful and full-featured calculator app developed by James Thomson originally for iOS and later brought to macOS. It goes far beyond the basic calculator app provided by Apple, offering a wide range of mathematical and conversion capabilities.Key features of PCalc include:Supports basic and scientific calculator modes with...
Microsoft Calculator Plus
Microsoft Calculator Plus is an advanced calculator application designed for Windows. It goes beyond the basic calculator app included in Windows by providing extra functions and calculation modes.The key features of Microsoft Calculator Plus include:Standard calculator mode for basic math and calculationsScientific mode with trigonometric, logarithmic and other math functionsProgrammer...
Precise Calculator
Precise Calculator is a free calculator application designed for Windows to provide more accurate and precise calculations compared to the default Windows calculator. It offers a clean and easy-to-use interface that makes it simple to perform various mathematical equations.The app features two main modes - basic and scientific. The basic...
HandyCalc
handyCalc is a free, open-source calculator application for Windows that provides extensive math and unit conversion capabilities. It includes standard, scientific, programmer, date calculation, and converter modes to handle everything from basic to advanced math.Some key features of handyCalc include:Standard calculator with memory keysScientific mode with trigonometric, logarithmic and hyperbolic...
Caligator
Caligator is a free online calendar and scheduling application designed to help teams and individuals manage their time and collaborate more effectively. Some key features of Caligator include:Multiple calendar views - Switch between month, week, day to view your scheduleCalendar sharing - Share calendars with others by inviting them to...
Calculator N+
Calculator N+ is a free, feature-rich calculator program and utility suite for Windows. It goes far beyond the basic arithmetic functions of the built-in Windows calculator and includes many advanced mathematical capabilities as well as a wide range of conversion and analysis tools.Key features of Calculator N+ include:Standard, scientific and...
Galculator
Galculator is a calculator application designed for the Linux desktop. It is released under the GNU General Public License and is free and open source software.Galculator provides standard calculator functionality for performing basic arithmetic operations like addition, subtraction, multiplication and division. It also includes support for percentages, square roots, factorial,...
Derivative Calculator
A derivative calculator is a software tool used to numerically or symbolically calculate derivatives of mathematical functions. It is an essential tool for students, engineers, and scientists who need to analyze rates of change of functions or solve optimization problems.Derivative calculators allow users to input a function with variables, such...
Calcbot
Calcbot is an advanced calculator app developed for iOS devices including iPhones and iPads. It goes far beyond the basic functions of the built-in iOS calculator by providing a wide range of mathematical and scientific features.Key features of Calcbot include:Support for trigonometric functions like sine, cosine, tangent, inverse trig functions,...
FxSolver
fxSolver is a free online math calculator and equation solver. It allows users to easily solve a wide range of math problems and calculate formulas without needing to install any software.Some key features of fxSolver include:Supports various common math functions like trigonometry, logarithms, fractions, matrices, etc.Can solve equations and formulas...
Sticky Calculator
Sticky Calculator is a handy desktop calculator application for Windows. It provides basic arithmetic functions like addition, subtraction, multiplication and division. What makes it unique is the ability to stick calculation results directly onto your desktop for later reference.When you perform a calculation in Sticky Calculator, it displays the formula...
SpeQ Mathematics
SpeQ Mathematics is an open-source software application focused on mathematical computations, graphing, and data analysis. Designed primarily for high school and college students, it aims to provide an intuitive interface and powerful set of tools to help with math coursework, homework, exam preparation, and visualizing complex concepts.Some of the key...
Engineering Calculator
An engineering calculator is an essential software tool used by engineers, scientists, mathematicians, and students to perform complex calculations for their work. It goes far beyond the basic functions of a standard calculator and includes advanced mathematical, scientific, statistical, conversion, and graphing capabilities.These specialized calculators allow users to solve complex...
Integral Calculator
Integral Calculator is a free online tool designed to calculate both definite and indefinite integrals. It can evaluate single, double, triple, and improper integrals using various methods including substitution, integration by parts, partial fractions, trigonometric substitution, etc. The calculator is able to deal with functions containing parameters and can simplify...
NumWorks Graphing Calculator
The NumWorks Graphing Calculator is an advanced programmable graphing calculator developed in France by a startup company called NumWorks. It was first released in 2017 as an alternative to popular calculators like the TI-84 Plus or Casio fx-CG50.The NumWorks stands out for its large, high-resolution screen that allows sharp and...
Moffsoft FreeCalc
Moffsoft FreeCalc is a free, open source spreadsheet application designed for the Windows operating system. Originally released in 2007 by independent developer Moffsoft, FreeCalc provides basic spreadsheet functionality suitable for home users, students, and small businesses.Some key features of FreeCalc include:Supports basic calculations, formulas, functions just like commercial tools such...
Numbat
Numbat is an open-source spreadsheet and data analysis application inspired by Microsoft Excel, but with a focus on enhanced data visualization and statistical analysis capabilities.Like Excel, Numbat provides full spreadsheet functionality - you can enter data, formulas and create financial, statistical or scientific models. But Numbat goes beyond Excel with...
Qalculate!
Qalculate! is a powerful and versatile desktop calculator application suitable for high school and college students, scientists, engineers, programmers, financial analysts and anyone who needs to make technical calculations. It is available for Linux, Windows and macOS.With Qalculate! you can calculate algebra, calculus, statistics, physics, chemistry, biology, electronics, programming and...
Microsoft PowerToy Calc
Microsoft PowerToy Calc is a feature-rich calculator desktop application developed by Microsoft for Windows 10 and 11. It is offered as part of the open-source PowerToys utilities suite.PowerToy Calc provides standard calculator capabilities as well as advanced math and scientific features not found in the default Windows calculator app. Key...
GeoGebra Scientific Calculator
GeoGebra is a free and open source dynamic mathematics software for all levels of education that joins geometry, algebra, spreadsheets, graphing, statistics and calculus in one easy-to-use package. It has received several educational software awards and is used by millions of students and teachers around the world.Some key features of...
OpalCalc
OpalCalc is an open-source spreadsheet application that offers similar functionality to Microsoft Excel. It enables users to organize, analyze, and visualize data in spreadsheet files and includes features such as:Spreadsheet calculation with formulas and functionsCharting and graphing tools to visualize data trendsPivot tables for summarizing and reorganizing dataData import/export options...
Omni Calculator
Omni Calculator is a free online calculator and unit converter designed to cover a wide variety of topics across multiple fields including mathematics, physics, chemistry, finance, health, and more. It features an intuitive, easy-to-use interface that allows users to quickly perform complex calculations and conversions without needing to install additional...
Calculator++
Calculator++ is a free, open-source calculator application for Windows that provides a variety of calculation tools and advanced features beyond a standard calculator.It includes the following types of calculators in one convenient application:Standard calculator with basic arithmetic functionsScientific calculator with trigonometric, logarithmic and exponential functionsProgrammer calculator with binary, hexadecimal and...
Frink
Frink is an open-source programming language and calculation tool optimized for unit conversions and calculations. Developed by Alan Eliasen, Frink aims to be an industrial-strength calculation engine with support for physical quantities and units.Some key features of Frink include:Powerful math and statistics functions, including symbolic algebra and calculus capabilitiesSpecialized unit...
Math42
Math42 is an open-source and free math software designed to help students learn and explore mathematics. Developed by a team of math educators and software engineers, Math42 aims to create an engaging experience for high school and college students while supporting math curriculum.The software provides an intuitive and visually appealing...
Qaltex
Qaltex is an open source and free alternative to Microsoft Office for Windows, Mac, and Linux. It provides document, spreadsheet, presentation, and email applications similar to Word, Excel, PowerPoint and Outlook.It is part of the Calligra Suite and is backed by the KDE community. Qaltex is compatible with most popular...
Kalq
Kalq is a free, open-source raster graphics editor intended as an alternative to proprietary photo editing and graphics software like Adobe Photoshop. It is designed for photo retouching, image composition and image authoring. Kalq enables complex graphics editing with its multilayered images support.Some of the key features of Kalq include:Multiple...
Multi Share Calculator
The Multi Share Calculator is a handy free online tool for easily dividing shares or equity between multiple people. It can be useful in a variety of situations such as:Splitting ownership of a small business among founders and investorsDividing proceeds from a shared investment between partnersAllocating equity in a startup...
RTRO-CLC2
RTRO-CLC2 is a feature-rich computer-aided design (CAD) software application tailored for controls engineering. It enables engineers and designers to efficiently create professional schematics, panel layouts, wiring diagrams, and bills of materials for control panels used in industrial automation systems.Key features of RTRO-CLC2 include:Extensive symbol libraries containing thousands of standard CAD...
Abacus
The abacus is one of the oldest known calculating devices, used for basic arithmetic operations. It typically consists of beads or stones that slide on rods or within grooves, allowing for easy manipulation and quick mental calculation. Each rod represents a place value, with the beads representing digits. By sliding...
Calculator by Xlythe
Calculator by Xlythe is a free, open source calculator application designed specifically for Windows. With its minimalist and intuitive interface, it focuses on providing a seamless calculator experience without unnecessary features or bloatware.At its core, Calculator by Xlythe offers all the basic arithmetic operations one would expect - addition, subtraction,...
Ruvenss Calculator
Ruvenss Calculator is a free, open-source calculator application for Windows. It provides standard, scientific, programmer, date calculation and converter tools in one app. Some key features include:Basic calculator with memory functionsScientific calculator with trigonometric, logarithmic and hyperbolic functionsProgrammer calculator with binary, octal and hexadecimal operationsDate calculation tools like day counter...
Standard Deviation Calculator
A standard deviation calculator is an online tool used to calculate the standard deviation, variance, mean, or average of a set of numbers. Standard deviation measures how spread out numbers are from the mean or average value. A low standard deviation indicates that the data points tend to be close...
Algebra Calculator
An algebra calculator is a software application designed to help students, teachers, scientists, engineers, and others solve a variety of algebra problems. It serves as an automated algebra solver that can quickly perform algebraic computations and show step-by-step work to reach the final solution.With an algebra calculator, users can enter...
Online Terminal Calculator
An online terminal calculator is a web-based application that provides a wide range of mathematical and scientific computing capabilities without requiring any software downloads or installation. Users can simply access the web app in their browser and immediately start performing calculations and data analysis.Typical features include support for standard arithmetic,...
GNOME Calculator
GNOME Calculator is a free, open source calculator app developed as part of the GNOME desktop environment for Linux and Unix-based operating systems. First introduced in 1997, it aims to provide a simple yet usable scientific calculator integrated into the GNOME desktop.GNOME Calculator supports standard arithmetic operations like addition, subtraction,...
VAT Calculators
VAT Calculators are software tools used by businesses to accurately and efficiently calculate value-added tax (VAT) obligations. They automate the complex VAT calculations on sales and purchases, ensuring compliance and saving significant time compared to manual calculations.These calculators integrate with accounting software and e-commerce platforms to pull in transaction data....
Makina
Makina is an open-source content management system and web framework built on top of the Python programming language and Django web framework. It is licensed under the GNU AGPLv3 and available for free download and use.Some key features of Makina include:Modular architecture that allows extending functionality through pluggable appsOut-of-the-box support...
Calculate
Calculate is a free and open-source calculator application for Windows. It provides standard, scientific, and programmer calculator functionality in a simple and easy-to-use interface.Features of Calculate include:Standard calculator with basic arithmetic functionsScientific calculator with advanced math functions like trigonometry, logarithms, and moreProgrammer calculator with logic functions, bitwise operations, and hexadecimal/binary...
HEXelon MAX
HEXelon MAX is a comprehensive 3D computer graphics software that provides powerful modeling, animation, simulation, and rendering tools for artists, animators, and visual effects specialists. First released in 1990 by Hexagon Software, HEXelon MAX has become an industry-standard 3D animation application used widely in media, entertainment, architecture, manufacturing, engineering, education,...
Physics Formulas Calculator
The Physics Formulas Calculator is a web-based application designed to help students, teachers, and anyone interested in physics quickly calculate common physics formulas and concepts. The calculator covers major areas of physics including:Mechanics - Formulas related to motion, forces, energy, momentum, rotational motion, gravitation, oscillation, fluids, and more.Electromagnetism - Calculate...
ECW Expression Calculator
ECW Expression Calculator is a free, open-source mathematical software application developed by Ekaterina Volkova. It allows users to enter mathematical expressions involving numbers, variables, functions, and operators and view the step-by-step solution.Some key features of ECW Expression Calculator include:Supports a wide range of mathematical functions like trigonometric, logarithmic, piecewise, greatest...
CalcBuddy Calculator
CalcBuddy Calculator is a versatile and user-friendly online calculator application. With an intuitive design and wide range of mathematical functionalities, it aims to provide solutions for students, teachers, scientists, engineers and anyone who needs to perform calculations.Some key features of CalcBuddy Calculator include:Supports basic arithmetic operations, algebra, trigonometry, calculus, statistics...
Kanakku
Kanakku is an open-source, self-hosted web application for managing BitTorrent downloads and RSS feeds. It provides a convenient way to search, download, and manage torrents directly from a web interface without needing to install a separate BitTorrent client.Some key features of Kanakku include:Search torrents from various trackers and RSS feedsRemote...
Real Time Calculator
Real Time Calculator is a free calculator application for Windows designed to provide quick access to common mathematical and scientific calculations. It offers a simple, minimalist interface for performing basic arithmetic, trigonometric, logarithmic and exponential functions as well as unit conversions and access to mathematical and physical constants.Key features of...
JustBrowsing Calculator
JustBrowsing Calculator is a user-friendly and versatile online calculator that performs various mathematical computations with precision. It is accessible for free directly through any modern web browser with no downloads or installations required.This calculator allows you to carry out basic operations like addition, subtraction, multiplication and division along with more...
EdenMath
EdenMath is a free and open-source computer algebra system software for symbolic mathematics. It allows you to perform a wide range of mathematical calculations, analyze and visualize problems, and obtain numerical and symbolic solutions.Some of the key features of EdenMath include:Symbolic calculations - You can manipulate mathematical expressions with variables...
Sellertour PayPal fee Calculator
The Sellertour PayPal Fee Calculator is a handy free tool for any eBay or online seller that uses PayPal to process payments. With fees being a major cost of doing business online, being able to accurately estimate PayPal fees is important for determining margins and potential profits.This calculator allows you...
ESBCalc
ESBCalc is an open-source, cross-platform software suite for structural and earthquake engineering calculations. It provides a wide range of tools for the analysis and design of structures with different materials like steel, concrete, timber and masonry.Some of the key features and tools of ESBCalc include:Steel section optimizationReinforced concrete column, beam...
Oficalc
Oficalc is an open-source spreadsheet and data analysis application. As an alternative to proprietary options like Microsoft Excel or Google Sheets, Oficalc focuses on privacy, transparency, and user control over data and customizations.Some key features of Oficalc include:Calculation and graphing tools for analyzing data setsPivot tables and sorting/filtering optionsImport/export to...
Mathdroid
Mathdroid is an educational mobile application designed to help students solve math problems and visualize concepts. It covers arithmetic, algebra, trigonometry, graphs, and unit conversions.The interface is designed to be clean, intuitive, and easy-to-use. It supports typing mathematical expressions as well as handwriting recognition. The step-by-step calculation feature guides users...
Calculairum
Calculairum is a free, open-source calculator application for Windows. It provides the following calculation modes and features:Standard calculator with basic arithmetic functionsScientific calculator with trigonometric, logarithmic and exponential functionsProgrammer calculator with bitwise operations and hexadecimal conversionDate calculation tools for date arithmetic and conversionsUnits converter for various measurements like length, temperature,...
GlassCalc
GlassCalc is a powerful software tool used for the design and analysis of specialty glass structures. It enables engineers, architects, researchers, and other glass professionals to model a wide range of glass types and configurations for structural, thermal, optical, solar, and other simulations.Key features and capabilities of GlassCalc include:Advanced finite...
MATHdoozy
MATHdoozy is an adaptive and comprehensive math learning platform for K-12 students. It aims to make math fun and engaging through its game-based lessons, while also developing math fluency and mastery.Key features of MATHdoozy include:Personalized math curriculum that adapts to each student's learning level and paceOver 5000 standards-aligned interactive math...
CrossCalc
CrossCalc is a feature-rich spreadsheet program and calculation tool for Windows. It offers a wide range of advanced capabilities for science, engineering, statistics, finance, and more.Some key features of CrossCalc include:Over 400 built-in functions covering mathematics, statistics, finance, date/time processing, matrix calculations, and moreSupport for user-defined functions with multiple arguments...
MyCalc2
MyCalc2 is a free, open-source calculator application for Windows. It provides the basic calculation functions you would expect from a standard calculator, as well as more advanced mathematical and statistical capabilities.Some of the key features of MyCalc2 include:Standard arithmetic operations (addition, subtraction, multiplication, division)Exponential, logarithmic, and trigonometric functionsPercentages and conversions...
Calculator plus1
Calculator plus1 is a free software that provides an advanced calculator with additional useful features beyond basic calculation. It includes a standard calculator capable of basic math, but also has advanced math functions like trigonometry, logarithms, roots, factorials and more. Additionally, it can graph functions, allowing users to visualize formulas...
Linux Extcalc
Linux Extcalc is a free, open-source calculator application designed specifically for the Linux operating system. It provides a wide range of mathematical and statistical functions beyond a standard calculator, making it useful for students, engineers, financial analysts, and more.Extcalc features a simple, no-frills interface that should be intuitive for most...
ThinkCalculator
ThinkCalculator is a free and open-source advanced calculator and computation software for Windows. It offers a wide range of mathematical and scientific features including:Standard, scientific, programmer and statistics modes for different types of calculationsTrigonometric functions (sin, cos, tan, etc.)Logarithms and exponentsFactorials, permutations, combinationsFractions, percentile calculationsHexadecimal, octal and binary arithmeticDate and...
Getcalc
Getcalc is a versatile online calculator and converter that is free to use. It offers a wide range of mathematical and conversion capabilities through a clean and intuitive interface.For math, Getcalc can perform basic arithmetic, trigonometric, logarithmic and exponential calculations. It also includes more advanced features like equation solving, matrices,...
MochiMicho Calculator
MochiMicho Calculator is a free mobile calculator app available for both Android and iOS devices. It provides a variety of useful math and conversion tools in an easy-to-use interface.The app features a basic calculator mode for simple calculations as well as an advanced scientific calculator with trigonometric, logarithmic and exponential...
Calc98
Calc98 is a free spreadsheet program that has similar features to Microsoft Excel.Key capabilities and features include:Creating, editing and formatting spreadsheets with unlimited rows and columns, cell formatting, formula support, etc.Includes calculation and math functions for finance, statistics, date/time, logic, database capabilitiesCan create a wide selection of 2D and 3D...
FinKit
FinKit is an open-source financial modeling and analysis software designed for finance professionals. It provides a wide range of features to help analysts and bankers build financial models, analyze data, create presentations, and make better business decisions.Some key features of FinKit include:Library of customizable Excel-based templates for different types of...
Rule of 3 Calculator
A rule of 3 calculator is a tool used to solve simple proportional math problems. It is used when you know 3 values and need to calculate the 4th value based on the proportional relationship between them.For example, if you know that 5 units cost $10, and you want to...
Numeric Notes
Numeric Notes is a note taking application designed specifically for quantitative and technical writing. It integrates seamless LaTeX math typesetting and code snippet support into a clean, distraction-free interface optimized for focused work.Key features include:- Native LaTeX math input with real-time preview. No need to learn LaTeX syntax.- Support for...
TTCalc
TTCalc is a free and open-source calculator application for Windows. It provides a variety of calculation modes including standard, scientific, programmer, date calculation, and unit conversion.Some of the key features of TTCalc include:Customizable hotkeys for quick access to functionsVariables and functions to support complex formulasSyntax highlighting for formulasMulti-line formula editingProgrammer...
Arithmate Pro Calculator
Arithmate Pro Calculator is a powerful scientific calculator software for Windows. It offers a wide range of mathematical and scientific functions, making it useful for students, engineers, scientists, and other math professionals.Key features include:Standard, scientific, programmer, date and metric convertersTrigonometric functions (sin, cos, tan, etc.)Logarithmic, exponential and root functionsHexadecimal and...
ErrProof
errProof is a data validation and error prevention add-in for Microsoft Excel. It helps prevent errors and ensure accuracy during data entry by allowing users to define validation rules, conditional formatting, input masks, and drop down lists.Some key features of errProof include:Data Validation - Define what values or types of...