Degrees to Radians converter
° to rad — 180° = π radians
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Convert Degrees to all units
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Conversion Formula
Degrees to Radians: 180° = π radians
Example: To convert 90° to radians: 90 × π/180 = 1.5708 rad
Quick Reference: Degrees to Radians
| Degrees | Radians |
|---|---|
| 1 ° | 0.017453 rad |
| 5 ° | 0.087266 rad |
| 10 ° | 0.174533 rad |
| 25 ° | 0.436332 rad |
| 50 ° | 0.872664 rad |
| 100 ° | 1.7453 rad |
| 500 ° | 8.7266 rad |
| 1,000 ° | 17.4533 rad |
Frequently Asked Questions
How do I convert Degrees to Radians?
Multiply your degrees value by the conversion factor. To convert 90° to radians: 90 × π/180 = 1.5708 rad. You can also use the converter above for instant results.
What is ° in rad?
1 ° equals 0.017453 rad. This is based on the standard conversion factor: 180° = π radians.
Is this converter accurate?
Yes. ConvertFast uses precise conversion factors computed client-side in your browser. Results are accurate to 6 significant digits, which covers all practical use cases.