Convert Degrees to Radians - Fast & Accurate Degrees ⇄ Radians Conversion Tool

Convert degrees to radians instantly with our free online calculator. Get exact results for Degrees ⇄ Radians conversions used in math, physics, and engineering.

Degrees to Radians Converter Tool
Enter a value to convert between degrees and radians with bidirectional conversion (1 radian = 180/π degrees)
Note: This converter uses standard conversion (1 radian = 180/π degrees ≈ 57.2958°). Perfect for trigonometry, geometry, physics calculations, and angle conversions.

Need a fast and accurate way to convert degrees to radians or vice versa? Our Degrees ⇄ Radians Converter gives instant and precise results. Just enter the value and get accurate conversions every time.

Why Users Love This Degrees ⇄ Radians Converter

  • Exact in design: Uses the correct trigonometric formula for accurate results.
  • Instant answers: Get results as you type or with a single click.
  • Clear display: Shows exact and rounded values with adjustable decimals.
  • Two-way switch: Instantly switch between degrees to radians and radians to degrees.
  • Works anywhere: 100% mobile and desktop-friendly for classroom, lab, or home use.

How to Use Our Converter

  1. Enter the value.
  2. Choose the direction: Degrees to Radians or Radians to Degrees.
  3. View instant results.
  4. Copy, share, or save the result.

Degrees

The term degrees (°) represents an angle measurement. A full circle equals 360 degrees. Degrees are widely used in geometry, navigation, astronomy, engineering, and map design to measure angles, rotations, or directions.

Key Facts About Degrees

  • Exact value: 360° = 2π radians
  • Relationship to other units: 1° = π/180 radians
  • Common abbreviation: °
  • Notation tips: Always include the degree symbol (°) after the number.

Radians

The term radian (rad) measures angles based on the arc length of a circle. Radians are commonly used in mathematics, trigonometry, and physics, especially when dealing with sine, cosine, and other circular functions.

Key Facts About Radians

  • Exact value: 1 radian = 180/π degrees
  • Relationship to other units: 2π radians = 360 degrees
  • Common abbreviation: rad
  • Notation tips: Often written without a symbol in equations but understood as radians.

Degrees to Radians Conversion Formula

Formula:

Radians = Degrees × (π / 180)

Degrees to Radians Conversion Examples

Example 1: 30° to radians
Step 1: Formula = Radians = Degrees × (π / 180)
Step 2: Substitute = 30 × (π / 180)
Step 3: Multiply = π/6 radians

Example 2: 90° to radians
Step 1: Radians = Degrees × (π / 180)
Step 2: Substitute = 90 × (π / 180)
Step 3: Result = π/2 radians

Example 3: 180° to radians
Step 1: Radians = Degrees × (π / 180)
Step 2: Substitute = 180 × (π / 180)
Step 3: Result = π radians

Radians to Degrees Conversion Formula

Formula:

Degrees = Radians × (180 / π)

Radians to Degrees Conversion Examples

Example 1: π/6 radians to degrees
Step 1: Formula = Degrees = Radians × (180 / π)
Step 2: Substitute = (π/6) × (180 / π)
Step 3: Multiply = 30°

Example 2: π/2 radians to degrees
Step 1: Degrees = Radians × (180 / π)
Step 2: Substitute = (π/2) × (180 / π)
Step 3: Result = 90°

Example 3: π radians to degrees
Step 1: Degrees = Radians × (180 / π)
Step 2: Substitute = π × (180 / π)
Step 3: Result = 180°

Applications of Degrees and Radians Conversions

  • Education: Used in trigonometry and geometry lessons.
  • Engineering: Essential for calculating torque and angular motion.
  • Astronomy: Helps measure planetary orbits and star positions.
  • Computer Graphics: Used to rotate objects or create circular animations.

Quick Reference Table for Degrees ⇄ Radians Conversion

Degrees (°)

Radians (rad)

Common Angle

Use Case

30°

π/6

Acute angle

Geometry

45°

π/4

Common trigonometric value

Physics

60°

π/3

Equilateral triangle

Engineering

90°

π/2

Right angle

Navigation

Use our Degrees ⇄ Radians Converter at Digital Calculator for fast, accurate, and reliable results in math, science, and engineering applications. Whether you’re a student, teacher, or professional, our tool helps simplify angle conversions instantly.

 

 

 

Frequently Asked Questions

Published: 10/6/2025