180°`. Radians = Degrees × (π | Home » Math & Conversions » Unit Conversions » Degrees to Radians Converter (with Pi) Degrees to Radians Converter A bidirectional converter for angles. Enter a value in any field to instantly convert between degrees and radians (as a decimal or in terms of π). Degrees (°) ≈ Radians (decimal) = Radians (in terms of π) π Calculation Steps: Enter a value to see the step-by-step conversion. How to Convert Degrees to Radians The conversion from degrees to radians is fundamental in trigonometry, calculus, and physics. The key is the relationship that **180 degrees is equal to π (pi) radians**. The Formula (Degrees to Radians) To convert from degrees to radians, you multiply the angle in degrees by the conversion factor `π