Calculation Engine · Live Demo

The expression parser

A dependency-free evaluator for arithmetic, logic, rounding, finance, dates and time. Type a formula below — it is evaluated server-side and the result comes straight back.

Result awaiting input…

Reference variables by name (e.g. commission_base) and define them in the variables box as JSON.

Try these
Click any example to load it.
Function reference
Everything the parser understands.
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