Scientific Calculator
Trigonometry, logarithms, powers, roots, factorials and constants — with degree/radian modes.
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About this calculator
Adds the functions that turn arithmetic into mathematics — trigonometry, logarithms, powers, roots and factorials. The DEG/RAD switch matters more than it looks: sin(30) is 0.5 in degrees but −0.988 in radians, and mixing them up is the most common source of wrong answers.
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Frequently asked questions
Can I switch between degrees and radians?+
Yes — use the DEG/RAD toggle. It affects sin, cos, tan and their inverses.
What functions are supported?+
sin, cos, tan and inverses, ln, log, √, powers (xʸ), x², factorials (n!), π, e, parentheses and percentages.
All calculations run locally in your browser. Nothing you type is sent to a server.