Calculator
A simple, fast, free calculator. Type on your keyboard or click the keys — history keeps your recent calculations.
An everyday online calculator
Addition, subtraction, multiplication, division, percentages and parentheses: this calculator covers all everyday math, with no install and no account. It works on desktop, tablet and mobile.
Your history is kept in your browser, so your last calculations are still there when you come back.
Tips
Use your keyboard: digits, operators, Enter for the result, Backspace to fix a typo, Esc to clear.
The % sign turns a number into a percentage: 150*20% gives 30.
FAQ
Is this calculator free?
Yes, completely free with no intrusive ads and no sign-up.
Can I use my keyboard?
Yes: digits, operators (+, −, ×, ÷), parentheses, Enter to compute and Backspace to correct.
Are my calculations sent to a server?
No. Everything runs in your browser: no calculation or data is ever transmitted.