Tip: use your keyboard — digits, + − * /, Enter, Backspace, Esc and %.
History
Your calculations will appear here.
How it works
1
Click the buttons or type numbers with your keyboard.
2
Choose an operation (+, −, ×, ÷) and enter the next value.
3
Press = or Enter to see the result; the history keeps your latest calculations.
Frequently asked questions
Is it really free?
Yes. The site is supported by ads, so you never pay or need to create an account.
Can I use my computer keyboard?
Yes. Type digits, use + − * / for operations, Enter or = for the result, Backspace to delete, Esc to clear and % for percent.
How does the percent key work?
In addition and subtraction, the percentage is taken from the first value: 200 + 10% = 220. In other operations the number is divided by 100: 50 × 10% = 5.
What are the MC, MR, M+ and M- keys for?
They are memory keys: M+ adds the displayed value to memory, M- subtracts it, MR recalls the stored value and MC clears the memory.
Does it work on mobile?
Yes. The page adapts to your screen and does not require installing any app.