1 arcsecond (1 ″)
1 arcsecond equals 0.00027777778 degrees, 0.000004848137 radians, 0.016666667 arcminutes and 0.00030864198 gradians.
1 arcsecond = 0.000277777778 degrees
1 arcsecond in all angle units
| Unit | Value | Scientific notation |
|---|---|---|
| Degrees (°) | 0.000277777778 | 2.77778 × 10-4 |
| Radians (rad) | 0.000004848137 | 4.84814 × 10-6 |
| Arcminutes (′) | 0.01666666667 | 1.66667 × 10-2 |
| Gradians (grad) | 0.000308641975 | 3.08642 × 10-4 |
| Milliradians (mrad) | 0.004848136811 | 4.84814 × 10-3 |
| Turns (tr) | 7.7160494 × 10-7 | 7.71605 × 10-7 |
| NATO mils (mil) | 0.004938271605 | 4.93827 × 10-3 |
| Milliarcseconds (mas) | 1,000 | 1 × 103 |
| Compass points | 0.000024691358 | 2.46914 × 10-5 |
| Hour angles (h) | 0.000018518519 | 1.85185 × 10-5 |
| Microradians (µrad) | 4.848136811 | 4.84814 × 100 |
| Quadrants | 0.00000308642 | 3.08642 × 10-6 |
| Microarcseconds (µas) | 1,000,000 | 1 × 106 |
| Warsaw Pact mils | 0.00462962963 | 4.62963 × 10-3 |
| Binary degrees (brad) | 0.000197530864 | 1.97531 × 10-4 |
| Minute of times (m) | 0.001111111111 | 1.11111 × 10-3 |
| Octants | 0.00000617284 | 6.17284 × 10-6 |
| Second of times (s) | 0.06666666667 | 6.66667 × 10-2 |
| Sextants | 0.00000462963 | 4.62963 × 10-6 |
| Zodiac signs | 0.000009259259 | 9.25926 × 10-6 |
| Swedish strecks | 0.004861111111 | 4.86111 × 10-3 |
| Hexacontades | 0.000046296296 | 4.62963 × 10-5 |
| Quarter points | 0.000098765432 | 9.87654 × 10-5 |
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.