Trigonometry Calculator
Find sine, cosine and tangent of an angle.
Result
Results are estimates for general information only and are not professional advice.
Trigonometric functions
Sine, cosine and tangent relate an angle to the sides of a right triangle. Enter an angle in degrees and this calculator returns its sine, cosine, tangent and the value in radians — the essentials for trigonometry and geometry.
Frequently Asked Questions
What is the Trigonometry Calculator?
Find sine, cosine and tangent of an angle. It runs instantly in your browser and is completely free to use.
What do I need to enter to use the Trigonometry Calculator?
The Trigonometry Calculator asks for a single value: Angle (degrees). Enter it and the result appears immediately — the calculation runs on your own device, so nothing you type is sent to a server.
How accurate is the Trigonometry Calculator?
The Trigonometry Calculator uses standard, widely-accepted formulas, so its figures are reliable estimates for everyday planning. They are not a substitute for advice from a qualified professional.
Is the Trigonometry Calculator free, and do I need an account?
Yes. The Trigonometry Calculator — and every other calculator on Calculatis — is completely free, with no registration, no download and no limit on how often you use it.