Convert an angle between degrees and radians (exact π factor).
Radians = degrees × π ÷ 180; degrees = radians × 180 ÷ π. Any finite number is accepted in the active mode; the secondary line restates the source value for context.
This calculator uses plain decimal numbers. If a result looks wrong, check whether you used a comma instead of a dot (or vice versa) where the field expects one.