Degrees to Radians Calculator
Convert an angle from degrees to radians.
Enter your values
ⓘ Live results
Results
- Radians
- 2.356194 rad
- As multiple of pi
- 0.75π
- Degrees
- 135°
Quick answer
Radians = degrees x (pi/180).
rad = deg * pi/180
How to use the Degrees to Radians Calculator
- 1Enter the angle in degrees.
- 2Multiply by pi/180 to convert to radians.
- 3The result is also shown as a fraction of pi for common angles.
Worked example
Using the values the calculator loads with:
Inputs
- Angle135 degrees
Results
- Radians2.356194 rad
- As multiple of pi0.75π
- Degrees135°
Frequently asked questions
Why use radians?
Radians are the natural unit for calculus and trig identities since they relate arc length directly to angle.
What is 180 degrees in radians?
Exactly pi radians (~3.1416).
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.