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Trigonometry Calculator (sin, cos, tan)

Calculate sin, cos, tan, cosec, sec and cot for any angle in degrees or radians, plus inverse functions (arcsin, arccos, arctan) with exact values for common angles.

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What is the Trigonometry Calculator?

Enter an angle in degrees or radians to get all six trigonometric ratios instantly. Common angles (0°, 30°, 45°, 60°, 90° and their multiples) also show the exact value like √3/2. Switch to inverse mode to find an angle from a ratio.

How to use the Trigonometry Calculator

  1. Choose Angle → ratios, or Ratio → angle (inverse).
  2. Enter the angle (or ratio) and pick degrees or radians.
  3. Read all values and the unit circle position.

Remember SOH-CAH-TOA

sin = opposite/hypotenuse, cos = adjacent/hypotenuse, tan = opposite/adjacent.

This Trigonometry Calculator is 100% free, needs no signup and runs privately in your browser – on phone, tablet or computer.

Last updated: · By NodifyTech

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