Arc-minute to Arc-second
Free instant arc-minute to arc-second converter. 1 ′ = 60 ″.
Common Arc-minute to Arc-second values
| Arc-minute (′) | Arc-second (″) |
|---|---|
| 0 | 0 |
| 30 | 1800 |
| 45 | 2700 |
| 60 | 3600 |
| 90 | 5400 |
| 180 | 10800 |
| 270 | 16200 |
| 360 | 21600 |
How does Arc-minute to Arc-second conversion work?
Type a value in the Arc-minute (′) field and the equivalent in Arc-second (″) appears instantly to the right. The math uses the exact formula shown above — no rounding errors, no approximations beyond standard floating-point precision. Use the swap button to flip the units and see the inverse conversion.
Arc-minute. One sixtieth of a degree. Used in navigation, astronomy, and gun-sight scopes (a "MOA").
Arc-second. One sixtieth of an arc-minute, or 1/3600 of a degree. Used in astronomy for stellar positions and lens/optics resolution.
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🎯 Accurate conversions
Conversion factors come from the official standard (NIST, BIPM, ISO definitions where applicable). Values are precise to standard floating-point limits.
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