The Precision People
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Reference Angle Reference Chart
| Degree | Min | Sec | Rad | Mrad | Circumference | Quadrant | |
| 1 Degree (°) = | 1 | 60 | 3600 | 1.7453 x 10-2 |
1.7453 x 10-5 |
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 10-7 |
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 10-9 |
7.71605 x 10-6 |
3.0864 x 10-5 |
| 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 Millirandian (mrad) = | 5.72958 x 10-2 |
3.43775 | 2.06265 x 102 |
103 | 1 | 1.59155 x 10-4 |
6.3662 x 10-4 |
| 1 Circumference = | 360 | 21,600 | 1,296,000 | 6.28319 | 6.28319 x 10-3 |
1 | 4 |
| 1 Quadrant = | 90 | 5,400 | 324,000 | 1.5708 | 1.5708 x 103 |
0.25000 | 1 |
| Angles | Per Inch | Per 10 Inches | Per Foot |
| 1 second | .000005" | .000048" | .000058" |
| 5 seconds | .000024" | .000242" | .000291" |
| 10 second | .000048" | .0000485" | .000582" |
| 20 seconds | .000097" | .000970" | .001163" |
| 30 second | .000145" | .001454" | .001745" |
| 1 minute | .000291" | .002909" | .003491" |
| 1 Foot Candle | = | 1 Lumen/Ft2 |
| 1 Foot Candle | = | 10.764 Meter Candles |
| 1 Candle | = | 1 Lumen/Steradian |
| 1 Candle/M2 | = | 3.142 x 10-4 Lambert |
| 1 Lambert | = | 2.054 Candle/In2 |
| 1 Lux | = | 1 Meter Candle |
| 1 Lux | = | 0.0929 Ft Candle |
| 1 Meter Candle | = | 1 Lumen/M2 |
| Linear Measure | Per Inch | Per 10 Inches | Per Foot |
| .000001" | 0.206 sec. | 0.021 sec. | 0.017 sec. |
| .000025" | 5.157 sec. | 0.516 sec. | 0.430 sec. |
| .00005" | 10.3 sec. | 1.03 sec. | 0.86 sec. |
| .0001" | 3 min. 26 sec. | 2.06 sec. | 1.72 sec. |
| .001" | 3 mm. 26 sec. | 20.6 sec. | 17.2 sec. |
| .005" | 17 min. 11 sec. | 1 min. 43 sec. | 1 min. 26 sec. |