Radian

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Radian is the standard unit of angular measurement. A straight angle is Pi radians (1/2 cycles or turns). This means that 1 radian = 180/pi degrees. A full circle (One cycle or turn) has 2*Pi radians (360 degrees).

All angle parameters and results of trigonometric functions are in radians.

Table of angles

Conversion of angles
Degrees Radians Cycles ( turn ) Gradians Angle16Degs Byte Binary Radians ( bbrad ) Binary Radians ( brad )
0 0 0 0 0 0
15° Pi / 12 1 / 24 16.67 240 11 2731
30° Pi / 6 1 / 12 33.33 480 21 5461
36° Pi / 5 1 / 10 40.00 576 26 6554
45° Pi / 4 1 / 8 50.00 720 32 8192
57.296° 1 1 / ( 2 * pi) 63.66 917 41 10430
60° Pi / 3 1 / 6 66.67 960 43 10923
72° 2 * Pi / 5 1 / 5 80 1152 51 13107
90° Pi / 2 1 / 4 100 1440 64 16384
120° 2 * Pi / 3 1 / 3 133.33 1920 85 21845
135° 3 * Pi / 4 3 / 8 150 2160 96 24576
144° 4 * Pi / 5 2 / 5 160 2304 102 26214
180° Pi 1 / 2 200 2880 128 32768
225° Pi * Pi / 4 5 / 8 250 3600 160 40960
270° 3 * Pi / 2 3 / 4 300 4320 192 49152
315° 7 * Pi / 4 7 / 8 350 5040 224 57344
360° 2 * Pi 1 400 5760 256 65536

See also

Functions

  • CycleToRad Convert cycle angle to radians angle.
  • DegToRad Convert degree angle to radians angle.
  • GradToRad Convert grads angle to radians angle.
  • RadToCycle Convert radians angle to cycle angle.
  • RadToDeg Convert radians angle to degrees angle.
  • RadtoGrad Convert radians angle to grads angle.