📐

Trigonometry Calculator

sin, cos, tan and other trig functions

sincostantrigonometry

📖 How to Use

Enter an angle value
Select Degrees (DEG) or Radians (RAD)
Click Calculate to see sin, cos, tan, cot, sec, csc

📐 Formula

sin(θ) = opposite/hypotenuse
cos(θ) = adjacent/hypotenuse
tan(θ) = sin(θ)/cos(θ)

❓ FAQ

Is the default in degrees or radians?▾

The default is Degrees (DEG). Click the button to switch to Radians (RAD).

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About Trigonometry Calculator

This tool is completely free, no registration required. Works directly in your browser. Supports both PC and mobile devices.

Trigonometry Calculator is a free online tool that works on both PC and mobile. No registration or download required — just open in your browser. Results are accurate and reliable for everyday use and professional reference.