Angle Converter
Angle measures rotation or the separation between two lines meeting at a point. Degrees are common in everyday use, while radians are the SI unit used in mathematics and physics. A full turn is 360 degrees or 2π radians.
1 ° = 0.017453293 rad
About angle conversion
Angle conversion is commonly needed when geometry, navigation, engineering drawings, and programming.
Popular conversions
All angle units
| Unit | Symbol | System |
|---|---|---|
| Degree | ° | Other |
| Radian | rad | SI |
| Gradian | grad | Other |
| Milliradian | mrad | SI |
| Arcminute | ′ | Other |
| Arcsecond | ″ | Other |
| Revolution | rev | Other |
Frequently asked questions
What is the base unit for angle?
Angle conversions on this site are calculated against the radian (rad).
Which angle units can I convert?
You can convert between 7 units, including degree, radian, gradian, milliradian, and more.
Where is angle conversion useful?
It is commonly needed when geometry, navigation, engineering drawings, and programming.
Does this converter mix measurement systems?
The converter supports Other, SI units and keeps their exact definitions separate so results stay accurate.