Scientific Calculator
A free online scientific calculator — type any expression with trig, logs, powers, roots, factorials, constants and unit-aware maths.
How to use
- 1Type an expression, e.g. 2^10 + sqrt(16) or sin(30 deg).
- 2Use deg for degrees; trig functions use radians by default.
How it's calculated
Supports + − × ÷ ^, parentheses, sqrt, cbrt, abs, sin/cos/tan (and inverses), log (natural), log10, log(x, base), exp, factorial (5!), pi, e, and unit conversions like 5 inch to cm.
Frequently asked questions
Are trig functions in degrees or radians?
Radians by default. Add 'deg' for degrees: sin(30 deg) = 0.5.
How do I write logarithms?
log(x) is the natural log, log10(x) base 10, and log(x, b) any base b.
Can it convert units?
Yes — try '5 km to mile' or '100 degF to degC'.