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CALCULATOR

Calculator

Make light work of everyday numbers.

TOOLCAT CALCULATOR
Tabby cat

Calculation history

Your calculations will appear here.

For everyday calculations. % divides the preceding number by 100.

TOOLCAT GUIDE

Getting started

A free online calculator for addition, subtraction, multiplication, division and parentheses. Use the buttons or type an expression and press Enter.

  1. Type an expression or use the buttons.
  2. Use parentheses to group calculations.
  3. Press Enter to calculate and Escape to clear.

Good to know

Can decimal calculations have rounding differences?

Some decimal operations can have rounding differences because of how computers represent numbers. Check results and rounding rules when exact decimal places matter.