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

  1. Enter the angle in radians.
  2. Keep radians to degrees, or press Swap for degrees to radians.
  3. 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.

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