Updated
How to convert angle
Angles are not wrapped to a single turn; negative values and multiple rotations remain meaningful. Radian conversions use π.
Multiply by the source unit factor to get the base quantity, then divide by the target factor. The other-units table compares the same value without retyping it.
A worked example
180 degrees × π/180 = π radians, about 3.141592654.
Before you use the result
Displayed values are rounded; extra digits do not make your measurement more accurate. Angles are not wrapped to a single turn; negative values and multiple rotations remain meaningful. Radian conversions use π.
degrees (°) to radians (rad): reference values
| degrees (°) | radians (rad) |
|---|---|
| 1 | 0.01745329252 |
| 10 | 0.1745329252 |
| 100 | 1.745329252 |
Calculated with the same conversion as the tool above.
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ToolOctopus. “Angle converter.” Updated 2026-09-19. https://tooloctopus.com/angle-converter.
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