Calculatorism

Degrees ↔ Radians Converter

Convert an angle between degrees and radians.

Input Data

Value
From

Results

Converted angle.
3.141593
Explanatory note about the result.
180° = 3.141593 rad。

At a glance:rad = deg·π/180; deg = rad·180/π (π rad = 180°). Complements arc-length and central-angle.

Formula

rad = deg × π/180.

deg = rad × 180/π.

How to Use

  1. Enter a value and source unit.
  2. The tool returns the other.

Case Studies

180° → π rad

180 × π/180 = π.

FAQ

Why radians?

They make calculus and periodicity natural (2π per circle).

Related Tools

References

Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.

Found a problem with the results?

If this calculator's result is wrong, or you have any question about the calculation logic, please let us know. You are viewing:Degrees ↔ Radians Converter（/math/degrees-radians）。