Trigonometry Calculator
sin, cos, tan + inverse functions
📚 Learn more — how it works, FAQ & guide Click to expand
Learn more — how it works, FAQ & guide
Click to expand
Trigonometry calculator
sin, cos, tan, csc, sec, cot. Forward + inverse. Degrees or radians.
How to use this tool
- 1
Enter angle
In degrees or radians (toggle switch).
- 2
See all 6 trig functions
sin, cos, tan, csc, sec, cot computed.
- 3
Inverse mode
Pick arc function + input value in [-1, 1].
Frequently Asked Questions
Degrees vs radians
Degrees: 360° full circle. Radians: 2π full circle. Convert: rad = deg × π/180.
Undefined values
tan is undefined at 90°, 270°. cot at 0°, 180°. sec at 90°, 270°. csc at 0°, 180°.
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100% Privacy. This tool runs entirely in your browser. Your data is never uploaded to any server.