Degrees to Radians

Convert degrees to radians instantly. Free online degree to radian converter for math and programming.

The Degrees to Radians converter is essential for mathematics, physics, programming, and engineering. While degrees are familiar in everyday use, radians are the natural unit for trigonometry and calculus. Most programming languages and scientific calculations require angle inputs in radians, making this conversion fundamental for technical work.

Converter

0.01745329

Formula: radians = degrees × (π/180)

Common use cases

  • Programming trigonometric functions
  • Physics angular calculations
  • Engineering rotation specifications
  • Game development and graphics
  • Navigation and mapping

How to use

  1. Enter the angle in degrees
  2. View the radian equivalent instantly
  3. Use for programming and math
  4. Copy results for calculations
  5. Clear for new conversions

FAQ

How many radians is 180 degrees?

180 degrees equals π radians (approximately 3.14159).

Why do computers use radians?

Radians are mathematically natural for calculus and trigonometry, making them standard in programming languages.

What is 1 radian in degrees?

1 radian equals approximately 57.3 degrees.

What common angles should I know?

90° = π/2, 180° = π, 270° = 3π/2, 360° = 2π radians.