calcul.io

math playground

New calculation

Help

Instructions Examples Functions Constants

Constants
speedOfLight

speedOfLight

Speed of light in vacuum

Try it yourself:

@1

speedOfLight

All constants

(c) calcul.io 2026

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:

Can't choose? Decide Randomly with simple decision maker. Online percentages calculator Base64 encode and decode