Enter angle converter values

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Converted value
3.14159265359

180 degree equals 3.14159265359 radian.

Summary

Convert degrees, radians, gradians, and turns.

Calculation details

A full turn is 2π radians, 360 degrees, or 400 gradians.

Formula

Result = value × source radians ÷ target radians.

Worked example

Worked conversion

180 degrees equals π radians.

How it works

Enter an angle and choose units. A full turn is 2π rad, 360°, or 400 gon.

Frequently asked questions

Does the calculation round the input?

No. The converter retains raw JavaScript numeric precision and delegates visible rounding to the existing display formatter.

Which unit definitions are used?

Angle factors are centralized relative to the radian.

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