Degree to Radian

1 ° = 0.017453293 rad

Value

From

Precision & format

Significant figures

Notation

1 ° equals

0.01745329252rad

All 8 units

Degree°
1
Radianrad
0.01745329252
Gradiangon
1.111111111
Arcminute′
60
Arcsecond″
3,600
Turnturn
full revolution
0.002777777778
Quadrantquad
right angle
0.01111111111
Mil (NATO)mil
1/6400 turn
17.77777778

Degree to Radian table

Common Degree values converted to Radian
Degree (°)	Radian (rad)
1	0.017453293
2	0.034906585
5	0.087266463
10	0.17453293
20	0.34906585
50	0.87266463
100	1.7453293
250	4.3633231
500	8.7266463
1,000	17.453293

How the conversion works

Multiply the degree figure by 0.01745329252 to get radian. Every factor on this site is anchored to the SI base unit for angle, so the same number is used everywhere it appears.

Going the other way, 1 rad = 57.29578 ° — see radian to degree.

See all 8 angle units →