Angle converter
Degrees, radians, gradians and more
Type 45, 12° 30′ 15″, or π/4 in radians.
Result
Your answer appears here as you type.
Angle converter
Convert an angle between degrees, degrees-minutes-seconds, radians, gradians, turns, arcminutes, arcseconds, mils and milliradians, with its slope, related angles and trig values.
Frequently asked questions
How do you convert degrees to radians?
Multiply the angle in degrees by π and divide by 180. For example, 45° × π/180 = π/4, which is about 0.7854 radians, and 180° is exactly π radians.
The converter on this page does it for any angle and also shows the result in gradians, turns, arcminutes, arcseconds and mils.
How do you convert radians to degrees?
Multiply the angle in radians by 180 and divide by π. For example, π/3 × 180/π = 60°, and 1 radian is about 57.30°.
You can type an angle in radians on this page, including forms such as π/4, and read it in degrees and every other unit.
How do you convert decimal degrees to degrees, minutes and seconds?
Keep the whole number as the degrees. Multiply the decimal part by 60 to get the minutes, then multiply the decimal part of the minutes by 60 to get the seconds.
Example: for 12.5125°, the degrees are 12. Next, 0.5125 × 60 = 30.75, so there are 30 minutes, and 0.75 × 60 = 45 seconds: the answer is 12° 30′ 45″. To go back, divide the minutes by 60 and the seconds by 3600 and add both to the degrees. Try this example.
Guides
About these measurements
Readings are estimates taken from rendered pixels and consumer device sensors. Do not rely on them for structural engineering, surveying, manufacturing inspection, navigation, or medical decisions. Check anything safety-critical with a calibrated instrument.
All processing happens in your browser. No image, camera frame or sensor reading is ever uploaded.
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