Tangent Calculator

Summary

Enter an angle in degrees or radians to instantly compute its tangent value, with inverse tangent (arctan) support.

How it works

1. Select whether your angle is in degrees or radians.
2. Type the angle value into the input field.
3. The tangent result appears instantly as you type.
4. Switch to Arctan mode to find an angle from a tangent value.
5. Click Copy to copy the result to your clipboard.

Use cases

• Calculate the slope of a line given its angle of inclination.
• Solve right-triangle problems in geometry and trigonometry homework.
• Convert between angle and tangent values for physics calculations.
• Verify calculator results or check special-angle identities.
• Find inverse tangent (arctan) values for engineering applications.
• Quickly check tangent of angles like 45°, 30°, 60°, or 135°.

Frequently Asked Questions