Numbat Calculator

High-precision scientific calculator with first-class physical units. Powered by Numbat.

Commands:listlist functionslist variableslist unitslist dimensionsInfo:info suminfo cinfo meterinfo piMore:helpclear
📥Install for offline useUse Numbat anywhere, no internet needed
🧮 Numbat Calculator

A statically-typed calculator that tracks physical units — no more mixing meters with seconds by accident. Define variables, write functions, and convert between any units.

Numbers use _ as thousands separator (e.g. 299_792_458) — purely cosmetic, commas are reserved for lists.

> 2 m + 3 ft
> 60 mph -> m/s
> 100 degree_celsius -> degree_fahrenheit
> 100 degree_celsius to degree_fahrenheit
> let mass = 80 kg
> let energy = 0.5 * mass * (30 mph)^2
> energy -> kJ
> list
Convert with -> or toEnter runTab complete history
Loading Numbat engine…Tutorial|Units|Example
🧮Need more?For full engineering worksheets with symbolic math, plotting, equation solving, and automatic unit checking, tryEngineeringPaper.xyz— a free, open-source, browser-based engineering calculation tool.