Angle Converter

Angle is a measure of rotation between two lines or rays. Different fields use different units to measure angles. Degrees are common in everyday use, radians are standard in mathematics and physics, gradians are used in surveying and engineering, while arcminutes and arcseconds are used in astronomy and navigation.

This converter supports conversion between all five common angle units with formula display. The conversion uses exact mathematical relationships: π radians = 180°, 90° = 100 gradians, 1° = 60 arcminutes = 3600 arcseconds.

1. Enter Value — Type the numeric angle value you want to convert.
2. Select Units — Choose the source unit (From) and target unit (To) from the dropdowns.
3. View Result — The converted value appears instantly along with the conversion formula.
4. Swap Units — Click the Swap button to reverse the conversion direction.
5. Use Examples — Click "90°" to see a right angle conversion, or "π rad" for pi radians.