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The radian (symbol rad) is the standard unit of angular measure. The radian is determimed by the circumference of a circle that is equal in length to the radius of the circle. ..more definition+
In relation to the base unit of [angle] => (radians), 1 Circles (o) is equal to 6.28319 radians, while 1 Radians (rad) = 1 radians.| 1 Circles | to common angle units |
|---|---|
| 1 o | = 6.28319 radians (rad) |
| 1 o | = 6283.19 milliradians (mrad/mil) |
| 1 o | = 6400.0028520557 angular mils (µ mil) |
| 1 o | = 360.0002548397 degrees (°deg) |
| 1 o | = 400.0003055775 gradians (grad) |
| 1 o | = 21600.031627293 arcminutes (arcmin) |
| 1 o | = 1296000.9174658 arcseconds (arcsec) |
| 1 o | = 6.0000019098585 sextants (60°) |
| 1 o | = 11.999980901451 signs (30°) |
| 1 o | = 1 turns (t) |
| Circles | to Radians (table conversion) |
|---|---|
| 1 o | = 6.28319 rad |
| 2 o | = 12.56638 rad |
| 3 o | = 18.84957 rad |
| 4 o | = 25.13276 rad |
| 5 o | = 31.41595 rad |
| 6 o | = 37.69914 rad |
| 7 o | = 43.98233 rad |
| 8 o | = 50.26552 rad |
| 9 o | = 56.54871 rad |
| 10 o | = 62.8319 rad |
| 20 o | = 125.6638 rad |
| 30 o | = 188.4957 rad |
| 40 o | = 251.3276 rad |
| 50 o | = 314.1595 rad |
| 60 o | = 376.9914 rad |
| 70 o | = 439.8233 rad |
| 80 o | = 502.6552 rad |
| 90 o | = 565.4871 rad |
| 100 o | = 628.319 rad |
| 200 o | = 1256.638 rad |
| 300 o | = 1884.957 rad |
| 400 o | = 2513.276 rad |
| 500 o | = 3141.595 rad |
| 600 o | = 3769.914 rad |
| 700 o | = 4398.233 rad |
| 800 o | = 5026.552 rad |
| 900 o | = 5654.871 rad |
| 1000 o | = 6283.19 rad |
| 2000 o | = 12566.38 rad |
| 4000 o | = 25132.76 rad |
| 5000 o | = 31415.95 rad |
| 7500 o | = 47123.925 rad |
| 10000 o | = 62831.9 rad |
| 25000 o | = 157079.75 rad |
| 50000 o | = 314159.5 rad |
| 100000 o | = 628319 rad |
| 1000000 o | = 6283190 rad |
| 1000000000 o | = 6283190000 rad |