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Scientific Calculator
Trigonometry, logarithms, powers, roots, π — keyboard + button input, rad/deg toggle.
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A Real Scientific Calculator, Online
No downloads, no ads in the result area. Full scientific functions with a clean keypad, keyboard shortcuts, and a rad/deg toggle. Works the same on phone and desktop.
Functions
- Trig: sin, cos, tan + inverse
- Log, ln, e^x, 10^x
- Powers, square root, cube root, n-th root
- Factorial (n!), absolute value, π, e
Frequently Asked Questions
What functions does this support?
Standard arithmetic, trig (sin, cos, tan, asin, acos, atan), logarithms (log base 10, ln), exponentials, powers, square / nth roots, factorial, and constants π and e.
Does trig use radians or degrees?
You can switch between radians and degrees — most physics homework uses radians, most geometry uses degrees.
Does it keep history?
Yes — recent calculations are preserved during your session so you can re-use previous answers.
Is it free and private?
100% free, no signup, no ads in the calculation. All math runs in your browser — nothing is sent to a server.