Windows Calculator, Google Calculator, Soulver, SpeedCrunch, Numi, Microsoft Calculator Plus, Derivative Calculator, SpeQ Mathematics, Simple Calculator, Qalculate!, Microsoft PowerToy Calc, GeoGebra Scientific Calculator, Calculator++, RTRO-CLC2, Calcbar, Abacus, Online Terminal Calculator, HEXelon MAX, ECW Expression Calculator, Getmathcharts.com, CalcBuddy Calculator, kanakku, Design Calculator, FinKit, Numeric Notes, TTCalc are some alternatives to Calcbot.