18 arcseconds (18 ″)
18 arcseconds equals 0.005 degrees, 0.000087266463 radians, 0.3 arcminutes and 0.0055555556 gradians.
18 arcseconds = 0.005 degrees
18 arcseconds in all angle units
| Unit | Value | Scientific notation |
|---|---|---|
| Degrees (°) | 0.005 | 5 × 10-3 |
| Radians (rad) | 0.000087266463 | 8.72665 × 10-5 |
| Arcminutes (′) | 0.3 | 3 × 10-1 |
| Gradians (grad) | 0.005555555556 | 5.55556 × 10-3 |
| Milliradians (mrad) | 0.0872664626 | 8.72665 × 10-2 |
| Turns (tr) | 0.000013888889 | 1.38889 × 10-5 |
| NATO mils (mil) | 0.08888888889 | 8.88889 × 10-2 |
| Milliarcseconds (mas) | 18,000 | 1.8 × 104 |
| Compass points | 0.000444444444 | 4.44444 × 10-4 |
| Hour angles (h) | 0.000333333333 | 3.33333 × 10-4 |
| Microradians (µrad) | 87.2664626 | 8.72665 × 101 |
| Quadrants | 0.000055555556 | 5.55556 × 10-5 |
| Microarcseconds (µas) | 18,000,000 | 1.8 × 107 |
| Warsaw Pact mils | 0.08333333333 | 8.33333 × 10-2 |
| Binary degrees (brad) | 0.003555555556 | 3.55556 × 10-3 |
| Minute of times (m) | 0.02 | 2 × 10-2 |
| Octants | 0.000111111111 | 1.11111 × 10-4 |
| Second of times (s) | 1.2 | 1.2 × 100 |
| Sextants | 0.000083333333 | 8.33333 × 10-5 |
| Zodiac signs | 0.000166666667 | 1.66667 × 10-4 |
| Swedish strecks | 0.0875 | 8.75 × 10-2 |
| Hexacontades | 0.000833333333 | 8.33333 × 10-4 |
| Quarter points | 0.001777777778 | 1.77778 × 10-3 |
Other amounts of arcseconds
About the arcsecond
The arcsecond is 1/60 of an arcminute, 1/3,600 of a degree. Read more about arcseconds.