Degrees to Radians Converter
This Degrees to Radians Converter lets you convert Degrees (deg) into Radians (rad) in one step. Enter a value in degrees and you'll instantly see the equivalent in radians, worked out with the formula rad = deg x 0.017453292519943295. It's handy whenever you need a quick, precise degrees-to-radians conversion without doing the arithmetic by hand.
- Conversion constants are fixed and do not vary by region.
Formula
rad = deg x 0.017453292519943295
- To convert degrees to radians, multiply your value by the fixed factor 0.01745329252 (so 1 deg = 0.01745329252 rad).
- The factor comes from the internationally agreed definitions of each unit, so it never changes.
- Displayed results are rounded for readability, but the full-precision value is used in the calculation.
Example
Inputs
- Degrees (deg): 180
Start with 180 deg. Multiply by 0.01745329252 to get 3.14159265359 rad.
Frequently asked questions
How do I convert degrees to radians?
Multiply the number of degrees by 0.01745329252. For example, 180 deg equals 3.14159265359 rad.
Are these conversion factors accurate?
Yes. The calculator uses internationally accepted definitions for each unit, so the conversion factor is exact.
Why can tiny differences appear after conversion?
Very small differences are only a display effect from rounding the output. The underlying calculation keeps full precision.