Converter Tool
Angle Converter
Convert between degrees, radians, and grads. 100% client-side — no data is sent to any server.
Degrees: 360° in a full circle| Radians: 2π in a full circle
⚡ Quick Reference
180°= π rad
90°= π/2 rad
45°= π/4 rad
100 grad= 90°
200 grad= 180°
400 grad= 360°
🔒 All processing happens in your browser. No data is sent to any server.
How to use this Angle Converter
Converting angles is simple with our free online tool. Enter the angle value in the input field, select the From unit (Degrees, Radians, or Grads), and choose the To unit.
The conversion happens automatically. You can swap the units with one click, load common angles with a single tap, or copy the result to your clipboard.
What this angle converter does
- ✓Three angle units — Convert between Degrees, Radians, and Grads.
- ✓Accurate conversions — Uses precise mathematical formulas with π for accuracy.
- ✓Common angles — Quickly load common angles like 30°, 45°, 90°, and 180°.
- ✓Swap units — Easily swap between From and To units.
- ✓Copy result — Copy the converted value with one click.
- ✓100% client-side — All processing happens in your browser. No data is sent to servers.
Common use cases
- •Convert degrees to radians for mathematical calculations and trigonometry
- •Convert radians to degrees for physics and engineering applications
- •Convert between grads and degrees for surveying and geodesy
- •Calculate trigonometric functions using the correct angle unit
- •Convert angles for navigation and GPS applications
- •Work with different angle conventions in programming and scientific computing
📐 Angle Units Reference
Degrees (°)
- Full circle: 360°
- Right angle: 90°
- Most common in everyday use
Radians (rad)
- Full circle: 2π
- 180° = π rad
- Standard in mathematics
Grads (grad)
- Full circle: 400 grad
- 90° = 100 grad
- Used in surveying