Angle Converter (Degrees to Radians)
Enter an angle and pick units — the conversion updates instantly.
Your text and files never leave your browser — nothing is sent to a server.
Show all units
- Degree (°)-
- Radian (rad)-
- Gradian (gon) (gon)-
- Arcminute (′)-
- Arcsecond (″)-
- Turn (revolution) (tr)-
- Milliradian (mrad)-
- NATO mil (6400 per turn) (mil)-
How to use
- Type an angle in “Value” and choose the units to convert from and to. The page opens on degrees → radians.
- For mixed values such as 37°30′, divide the minutes by 60 and enter 37.5 degrees.
- “Show all units” lists the same angle in arcminutes, arcseconds, turns, mils and every other unit at once.
- The page address keeps your value and units, so you can share the link as is.
FAQ
How many degrees are in a radian?
One radian is 180/π degrees, about 57.2958°. One degree is π/180, about 0.01745 rad.
How do I convert degrees, minutes and seconds?
1° = 60′ = 3600″. So 37°33′36″ is 37 + 33/60 + 36/3600 = 37.56°.
What is the difference between a mil and a milliradian?
A milliradian is exactly 0.001 rad, about 6283 to a full circle. The NATO mil rounds that to 6400 per circle (0.05625° each) so it divides evenly.
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