GNU Units

GNU Units

GNU Units is a command line utility program that converts between different systems of units. It can handle metric, US customary, and imperial units for length, mass, volume, and more. The program is useful for scientific, engineering, and math computations that require unit conv
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conversion units measurements science engineering

GNU Units: Command Line Utility for Unit Conversions

GNU Units is a command line utility program that converts between different systems of units. It can handle metric, US customary, and imperial units for length, mass, volume, and more. The program is useful for scientific, engineering, and math computations that require unit conversions.

What is GNU Units?

GNU Units is a flexible command line utility for unit conversions and calculations. Developed as part of the GNU Project, it can convert between metric, US customary units, British imperial units, and more for quantities like length, area, volume, mass, force, pressure, velocity, acceleration, temperature, energy, power, frequencies, viscosity, luminous intensities, and many others used in science, engineering, and mathematics.

Some key features and capabilities of GNU Units include:

  • Supports conversion between over 3000 units spanning 79 categories
  • Arbitrary precision for internal computation
  • Interactive mode for step-by-step conversions and calculations
  • Reverse conversions (e.g. miles to km and km to miles)
  • Compound unit calculations (e.g. convert mi/hr to km/min)
  • Define custom units and constants
  • Dimensionless quantities, contexts for calculations
  • Output options like fraction, precision, verbosality
  • Includes commonly used constants and conversions as defaults

With its extensive unit knowledge and flexible functionality for conversions and calculations, GNU Units is a handy tool for scientists, engineers, students, and others who routinely need to convert quantities or perform multi-step unit calculations. Its open source code can also facilitate including unit conversion capabilities within other software.

GNU Units Features

Features

  1. Converts between different unit systems
  2. Supports metric, US customary, and imperial units
  3. Handles conversions for length, mass, volume, time, pressure, energy, power, force, acceleration, radiation, fuel efficiency, and more
  4. Includes common constants like the speed of light and the gravitational constant
  5. Can output results in any number of significant figures specified by the user
  6. Has built-in arithmetic, so units can be combined in expressions before converting
  7. Provides a command line interface and scripting capabilities

Pricing

  • Open Source

Pros

Free and open source

Comprehensive unit conversion capabilities

Accuracy in conversions and calculations

Flexible input and output options

Can be easily integrated into scripts and programs

Cons

Only provides a command line interface, no GUI

Steep learning curve for command line usage

Limited documentation and support resources

Not as user-friendly as some commercial alternatives


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