Arcminutes to Arcseconds Converter

To convert a measurement in arcminutes to arcseconds, multiply the value by 60. The conversion factor comes from the relationship between both units and the radian.

For example, to convert 5 ′ to arcseconds: 5 × 60 = 300 ″.

An arcminute is a unit of angle equal to 1/60 of a degree, or 1/21,600 of a full turn. It is written with a prime symbol (′). Like the degree, the arcminute comes from the Babylonian sexagesimal system, which subdivided the degree into 60 parts. It remains standard for expressing small angles in astronomy and precise navigation.

Common uses of arcminutes include: Astronomy — apparent size and position of stars; GPS and latitude/longitude fractions; Vision measurement (visual acuity, minutes of arc); Firearms and optics (minute of angle, MOA).

An arcsecond is a unit of angle equal to 1/60 of an arcminute, 1/3,600 of a degree, or 1/1,296,000 of a full turn. It is written with a double-prime symbol (″). The arcsecond continues the Babylonian sexagesimal subdivision one step further and became essential in astronomy, where stellar parallaxes are measured in fractions of an arcsecond (the parsec is defined from it).

Common uses of arcseconds include: Stellar parallax and astrometry; Telescope resolution and seeing conditions; High-precision surveying and geodesy; Satellite and spacecraft pointing accuracy.

Here are some common values converted:

1 ′ = 60 ″ 5 ′ = 300 ″ 10 ′ = 600 ″ 50 ′ = 3,000 ″ 100 ′ = 6,000 ″