Angle Converter
Convert instantly between degrees, radians, gradians and turns. Handy for math, trigonometry and engineering calculations.
All conversions — 1 °
Radian (rad)0.0175
Gradian (grad)1.1111
Turn (turn)0.0028
About
The angle converter handles the angle units common in math and engineering. Trigonometry uses radians, everyday use prefers degrees, and some engineering fields use gradians.
180° = π radians = 200 gradians = 0.5 turns. The calculation runs instantly in your browser; your data is never sent out.
How to use
- Enter the angle value you want to convert.
- Pick the source unit (e.g. degree) and the target unit (e.g. radian).
- The result and all unit equivalents are listed instantly.
Frequently Asked Questions
- How many radians is 180 degrees?
- 180° = π radians ≈ 3.14159 radians.
- How many degrees is 1 turn?
- 1 turn = 360° = 2π radians.