Angle Converter

Angle Converter

Local Processing

Convert between angular units including degrees, radians, gradians, and full turns.

How It Works & Processing Standards

Convert between the units listed below using rad as the base unit.

deg1 deg = 0.017453 rad
grad1 grad = 0.015708 rad
turn1 turn = 6.283185 rad

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Converts radians used in math and programming, everyday degrees, surveying gradians and full turns.

How to Use Angle Converter

  1. 1
    Enter a valueDecimals and negative numbers (for temperature, say) are accepted.
  2. 2
    Choose unitsPick the unit you have and the unit you want. The swap button reverses the direction.
  3. 3
    Read, copy or shareResults show up to six decimal places. Copy them or create a share link with the same value.

Examples

180° in radians
Input: 180° → rad
Result: 3.141593
A quarter turn in degrees
Input: 0.25 turn → °
Result: 90

Common Use Cases

  • Radian values for trig functions in code
  • CSS rotations in deg or turn
  • Surveying gradians in degrees

Frequently Asked Questions (FAQ)

How many degrees is one radian?

About 57.2958° (180 ÷ π).

What is a gradian?

A right angle divided into 100; a full turn is 400 grad.

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