Convert angles between radians and degrees using the exact π relationship.
Calculate
Enter values and calculate.
Result
Formula and method
Degrees = radians × 180 ÷ π. Radians = degrees × π ÷ 180. Numeric input may be positive, negative, or zero.
Worked example
π radians converts to 180°. In reverse, 180° converts to approximately 3.14159265359 radians.
Limits and ownership boundary
This page owns direct two-way radian/degree conversion. It does not evaluate trigonometric expressions or infer symbolic π fractions from approximate input.