radian to degree (rad → °)
Unit ConverterConverting radian (rad) to degree (°), 1rad is about 57.29578°.
What is it
radian is a angle unit, as is degree. Their relation is fixed: 1rad = 57.29578°.
° = rad × 180 ÷ π (≈ rad × 57.29578)
How to use
- 1Enter the radian (rad) value.
- 2See the degree (°) result instantly.
- 3Switch units to convert again if needed.
Reference
| rad | ° |
|---|---|
| 0.1 | 5.729578 |
| 0.5 | 28.64789 |
| 1 | 57.29578 |
| 1.570796 (π/2) | 90 |
| 3.141593 (π) | 180 |
| 6.283185 (2π) | 360 |
Sources & standards
FAQ
How many ° is 1rad?
1rad is about 57.29578°.
How do I convert ° back to rad?
Compute rad = ° ÷ 57.29578.
How many ° is 10rad?
10rad is about 572.957795°.
How many degrees is 1 radian?
1 rad = 180 ÷ π ≈ 57.29578°. It is the central angle whose arc length equals the radius.
Why does π rad equal 180°?
A semicircle has arc length πr, and a radian is arc length divided by radius, so the semicircle angle (180°) is exactly π rad.
Is my input sent to a server?
No. Every conversion runs instantly inside your browser; the values you enter are never sent to a server or stored.