A chart listing angle conversions – Degree, Minute, Second, Radian, Milliradian, Circumference and Quadrant Angle Conversions Angle Conversions degree min sec rad mrad circumference quadrant 1 degree (°) 1 60 3600 1.7453 x 10-2 1.7453 x 101 2.778 x 10-3 1.11112 x 10-2 1 minute (') 1.66667 x 10-2 1 60 2.9089 x 10-4 2.9089 x 10-1 4.6296 x 10-5 1.8518 x 10-4 1 second (") 2.77778 x 10-4 1.66667 x 10-2 1 4.8481 x 10-6 4.8481 x 10-3 7.71605 x 10-6 3.0864 x 10-6 1 radian (rad) 5.72958 x 101 3.43775 x 103 2.06265 x 105 1 103 1.59155 x 10-1 6.3662 x 10-1 1 milliradian (mrad) 5.72958 x 10-2 3.43775 2.06265 x 102 10-3 1 1.59155 x 10-4 6.3662 x 10-4 1 circumference 360 21,600 1,296,000 6.28319 6.28319 x 103 1 4 1 quadrant 90 5400 324,000 1.5708 1.5708 x 103 0.25000 1