galculator is described as 'GTK 2 / GTK 3 based calculator with ordinary notation/reverse Polish notation (RPN), a formula entry mode, different number bases (DEC, HEX, OCT, BIN) and different units of angular measure (DEG, RAD, GRAD)' and is a Calculator in the education & reference category. There are more than 100 alternatives to galculator for a variety of platforms, including Android, Windows, Web-based, iPhone and Mac apps. The best galculator alternative is Wolfram Alpha, which is free. Other great apps like galculator are SpeedCrunch, Fossify Calculator, Qalculate! and OpenCalc.