Friendly Toolkit
Scientific Calculator
Scientific calculator
A free online calculator, basic or scientific, with keyboard input and history.
Free, private, no sign-up
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Type a whole calculation like 12 × (3 + 4) or 2^10 and press Enter, or use the keys.
The answer is previewed as you type. Click any result in the history to use it again, or type ans.
Good to know
Which order are operations done in?
Brackets first, then powers, then multiplication and division, then addition and subtraction. So 2 + 3 × 4 is 14, and −2² is −4.
How does % work?
% divides by 100, so 200 × 15% is 30. For other percentage questions, try the Percentage Calculator.
Degrees or radians?
Trig functions use degrees by default, so sin(30) is 0.5. Switch to radians in scientific mode.