Convert angle units including degrees, radians, gradians, turns, revolutions, arcminutes, arcseconds, and mils for construction layout, framing, slope, pitch, surveying, and geometry work.
Degrees to radians:
radians = degrees × π ÷ 180
Radians to degrees:
degrees = radians × 180 ÷ π
Degrees to turns:
turns = degrees ÷ 360
Degrees to gradians:
gradians = degrees × 10 ÷ 9
Angle conversions are useful for framing, roof pitch, stair layout, ramps, surveying, grade work, pipe slope, drainage, trigonometry, mechanical layout, and construction drawings.
Use this converter when switching between degrees, radians, turns, gradians, arcminutes, arcseconds, and mil-style angle references.
Your result shows the entered angle converted from the starting unit into the selected ending unit. The converter also shows common reference values such as degrees, radians, gradians, and turns.
This converter changes angle units only. For roof pitch, slope, ramp grade, or drainage calculations, use the related pitch or slope converters when you need rise-over-run measurements.
180 degrees equals π radians, which is about 3.14159 radians.
Multiply degrees by π, then divide by 180. For example, 45 degrees equals about 0.785398 radians.
There are 360 degrees in 1 full turn or revolution.
There are 60 arcminutes in 1 degree and 3,600 arcseconds in 1 degree.
No. An angle converter changes angle units. A slope converter changes rise-over-run, percent grade, pitch, and angle relationships.