All tools
Calculator
A free, fast online calculator for everyday math — with memory, history, keyboard support, and copy-to-clipboard.
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How it works
- 1
Type or tap numbers
Use the on-screen keypad or your physical keyboard — digits 0–9 and the decimal point work as expected.
- 2
Pick an operation
Use +, −, ×, or ÷. On your keyboard, the * and / keys map to × and ÷.
- 3
Press = or Enter
Get your result instantly. Chain calculations by tapping another operator right after.
- 4
Use memory & history
M+/M−/MR/MC store a running total. The history panel keeps recent calculations — click any entry to reuse the result.