FreeDev Tools

Angle Converter

Convert angles between degrees, radians, gradians, arcminutes, arcseconds, and turns.

Runs locally in your browser. Your input is not uploaded.

How to Use

  1. 1

    Choose the source unit

    Pick degrees, radians, gradians, arcminutes, arcseconds, or turns.

  2. 2

    Enter angles

    Type one value per line — e.g. 90, 180, 45.

  3. 3

    Read the results

    Each angle is converted to all six units instantly with full precision.

Frequently Asked Questions

Multiply by π/180: 90° = π/2 ≈ 1.5708 rad. Enter degrees, select Degrees as the source, and the radian value appears along with gradians, arcminutes, arcseconds, and turns.