How To Convert Degrees To Radians?

Multiply degrees by π and divide by 180

Formula: radians = degrees × (π / 180)

Example: 90° = 90 × (π / 180) = π/2

Example: 45° = 45 × (π / 180) = π/4

Example: 180° = 180 × (π / 180) = π

Example: θ° = θ × (π / 180)