calcul.io

math playground

New calculation

Help

Instructions Examples Functions Constants

Functions
Operators
unaryMinus

unaryMinus

-x

unaryMinus(x)

Try it yourself:

$1	-4.5
$2	-(-5.6)
$3	-"22"

See also:

add subtract

All functions

(c) calcul.io 2025

Math Playground. Simple and fast calculator for your everyday math needs. Calculate without limitations, jot and experiment with ideas.

Terms & Conditions Privacy Policy

Try also:

Online percentages calculator

Base64 encode and decode