Physical quantities

Physical quantities are supported natively. The automatic dimensional analysis will help you discover mistakes.

Write quantities as: number unit. Use parentheses when ambigious.

Converting physical quantities

3 l/s to m^3/hConvert 10 miles to kmConvert 5 kg*m/s^2Simplify 50000 lbs*ft^2/s^3Simplify

Calculating with quantities


// freefall time in vacuum
sqrt(2*10 ft/1gee)


// matrix operations with quantities
A = [1kV/cm, 2kV/cm;
3m/s^2, 4m/s^2]
A.()


// area of a circle with a given radius
(3cm)^2*pi


// corner frequency of an RC filter
1/(2*pi * 100 Ohm * 33 nF)


// battery life under a given load
1.2V * 900 mA*h / 100mW


// period of a pendulum
2*pi*sqrt(20 cm/1gee)


// range of a car
60 l * (26 mi/gal)

The automatic dimensional analysis will help you discover mistakes.

Invalid operations


// Error - trying to add incompatible quantities
15 m + 3 s