Convert Arcminutes to Arcseconds
1 arcminute is 60 ″. One arcminute is exactly 60 arcseconds.
One arcminute is 60 arcseconds. To convert arcminutes to arcseconds, multiply by 60; to go the other way, divide by 60 or multiply by 0.016666667. The factor is exact rather than rounded: it follows from NIST Special Publication 811. A sixtieth of a degree.
Factor checked against the defining standard · How we check
- Arcminutes × 60
1 * 6060 ″
1 arcminute in every angle unit
| Unit | Value | Exact factor |
|---|---|---|
| radians | 0.0002908882087 rad | × 0.000290888208666 |
| degrees | 0.01666666667 ° | × 0.0166666666667 |
| gradians | 0.01851851852 gon | × 0.0185185185185 |
| arcminutes (as entered) | 1 ′ | — |
| arcseconds | 60 ″ | × 60 |
| turns | 0.0000462962963 turn | × 0.0000462962962963 |
| milliradians | 0.2908882087 mrad | × 0.290888208666 |
Factors are entered by hand from NIST Special Publication 811 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert arcminutes to arcseconds? The converter and the working
- 1.Take the measurement in arcminutes.
- 2.Multiply by 60 — that is how many arcseconds fit in one arcminute.
- 3.To go back the other way, divide by 60, or multiply by 0.016666667.
Worked example: 25 arcminutes to arcseconds
- Formula
- ′ × 60 = ″
- Arithmetic
- 25 × 60 = 1,500 ″
- Answer
- 25 ′ = 1,500 ″
The factor is exact, so this figure is exact too — only the display is rounded.
Arcminutes to arcseconds conversion table
| Arcminutes | Arcseconds |
|---|---|
| 1 ′ | 60 ″ |
| 2 ′ | 120 ″ |
| 3 ′ | 180 ″ |
| 4 ′ | 240 ″ |
| 5 ′ | 300 ″ |
| 6 ′ | 360 ″ |
| 7 ′ | 420 ″ |
| 8 ′ | 480 ″ |
| 9 ′ | 540 ″ |
| 10 ′ | 600 ″ |
| 12 ′ | 720 ″ |
| 15 ′ | 900 ″ |
| 20 ′ | 1,200 ″ |
| 25 ′ | 1,500 ″ |
| 50 ′ | 3,000 ″ |
| 100 ′ | 6,000 ″ |
| 200 ′ | 12,000 ″ |
| 300 ′ | 18,000 ″ |
| 500 ′ | 30,000 ″ |
| 1000 ′ | 60,000 ″ |
| 2000 ′ | 120,000 ″ |
| 5000 ′ | 300,000 ″ |
| 10000 ′ | 600,000 ″ |
What is an arcminute?
A sixtieth of a degree. A nautical mile was defined as one arcminute of latitude, which is why the two units keep appearing together on charts.
What is an arcsecond?
A 3,600th of a degree. Stellar parallax is measured in these: a star one arcsecond of parallax away is one parsec from Earth, which is where the name comes from.
How many arcseconds are in an arcminute?
One arcminute is 60 arcseconds, exactly. Going the other way, one arcsecond is 0.016666667 arcminutes. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every angle unit here
The whole group — 7 units with their symbols and the size of each one in radians — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to an arcminute.
Source: NIST Special Publication 811 — the radian, and units accepted for use with the SI
Cite this page
- APA
- Rule Calculator. (2026). Convert Arcminutes to arcseconds. Rule Calculator. https://rulecalculators.com/convert/arcminute-to-arcsecond
- MLA
- "Convert Arcminutes to arcseconds." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/arcminute-to-arcsecond.
- Chicago
- Rule Calculator. "Convert Arcminutes to arcseconds." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/arcminute-to-arcsecond.
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Questions people actually ask
- How many arcseconds are in an arcminute?
- 60. A 3,600th of a degree. Stellar parallax is measured in these: a star one arcsecond of parallax away is one parsec from Earth, which is where the name comes from.
- How do I convert arcseconds back to arcminutes?
- Divide by 60, or multiply by 0.016666667 — they are the same operation.
Other angle conversions
Arcseconds to arcminutes — the same conversion the other way.