Degree | |
---|---|
![]() One degree (shown in red) and eighty nine degrees (shown in blue). The lined area is a right angle. | |
General information | |
Unit system | Non-SI accepted unit |
Unit of | Angle |
Symbol | °[1][2], deg[3] |
Conversions | |
1°[1][2] in ... | ... is equal to ... |
turns | 1/360 turn |
radians | π/180 rad ≈ 0.01745.. rad |
milliradians | 50·π/9 mrad ≈ 17.45.. mrad |
gons | 10/9g |
A degree (in full, a degree of arc, arc degree, or arcdegree), usually denoted by ° (the degree symbol), is a measurement of a plane angle in which one full rotation is 360 degrees.[4]
It is not an SI unit—the SI unit of angular measure is the radian—but it is mentioned in the SI brochure as an accepted unit.[5] Because a full rotation equals 2π radians, one degree is equivalent to π/180 radians.