Scientific Calculator
A free online scientific calculator supporting trigonometry (sin, cos, tan), logarithms, exponents, square roots, factorials, and constants like π and e. Works entirely in your browser.
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DEG
Tap DEG/RAD to switch angle mode · Supports sin, cos, tan, log, ln, √, x², π, e
How it works
This scientific calculator runs entirely in your browser — no data is sent to any server. Simply fill in the fields above and the result updates instantly. You can copy the output with the copy button provided.
Frequently Asked Questions
What functions does this scientific calculator support?
It supports basic arithmetic, trigonometry (sin, cos, tan and their inverses), logarithms (log base 10, natural log ln), square root, powers, factorials, and constants π and e.
Are trig functions in degrees or radians?
You can switch between DEG and RAD mode using the DEG/RAD toggle button. The current mode is always shown on screen.
Is this calculator free to use?
Yes, completely free with no signup required. All calculations run in your browser.