Radians to Degrees Converter
Convert radians to degrees and back, the two ways to measure angles in math and programming.
Independently verified for accuracy
Calculator by Toolsloft ↗- Result
- 57.29578 Degrees (deg)
- Conversion
- 1 Radians (rad) = 57.29578 Degrees (deg)
Convert radians to degrees, the step you need when a formula or programming function returns radians but you want a familiar degree value. Swap the direction to convert degrees to radians.
How this is calculated
A full circle is 2 pi radians and 360 degrees, so one radian equals 180 divided by pi degrees, about 57.2958. Radians are multiplied by 180 and divided by pi to get degrees.
How to use
- Enter the angle in radians.
- Keep radians to degrees, or press Swap for degrees to radians.
- Read the result in degrees.
Examples
- Pi radians:
3.141593 rad = 180 deg - One radian:
1 rad = 57.29578 deg - Half pi:
1.570796 rad = 90 deg
FAQ
- How many degrees is one radian?
- One radian is about 57.2958 degrees. A full circle of 2 pi radians is 360 degrees.
- Why do programming languages use radians?
- Trigonometric functions in most languages expect radians, so converting to degrees makes the result easier to read.