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Scientific Calculator
Evaluate expressions with sin, cos, log, ln, sqrt, π and e.
Best for: Use it for maths, science and engineering calculations that go beyond basic arithmetic.
Input
How it's calculated & sources
The Scientific Calculator uses the standard, deterministic formula, so the same inputs always produce the same result. It runs entirely in your browser, so your inputs are never uploaded. Last reviewed June 2026.
Free & no sign-up · runs entirely in your browser. Results are estimates for general information, not professional advice — verify important decisions with a qualified expert. Last reviewed June 2026.
How it works
Supports +, −, ×, ÷, ^, parentheses, sin/cos/tan, asin/acos/atan, log (base 10), ln, sqrt, abs, exp, π, e.
Example
2*sin(π/2)+log(100) → 4
Frequently asked questions
Are angles in radians?+
Yes, trigonometric functions use radians. Convert degrees with deg*π/180.
Is log natural or base 10?+
log is base 10. Use ln(x) for natural logarithm.
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