Arcsecond Converter
Created by: tinycalcs.com/en
Number of supported units: 14
Last update: 2026
The Arcsecond Converter supports 14 different angle units. This makes it possible to convert freely between arcseconds [″] and other internationally common angle units. All angle values are converted in real time and displayed with up to 20 decimal places, ensuring sufficient accuracy.
Conversion of arcseconds
In order to convert arcseconds [″] into another angle unit, a conversion value or a suitable calculation method is required. Both can be determined using a conversion table. However, the table is relatively large and confusing, making it difficult for inexperienced users to understand. The following tool provides a solution to this problem by allowing conversion values and calculation methods for arcseconds [″] to be queried directly from the conversion table.
Determine conversion factor
Conversion between arcseconds and radians
You can easily convert between arcseconds [″] and radians [rad] using the formulas provided below. For accurate results, it is important to follow the correct order of mathematical operations.
- Radians [rad] = arcseconds [″] * π ÷ 648,000
- Arcseconds [″] = radians [rad] * 648,000 ÷ π
Conversion between arcseconds and milliradians
The fastest and easiest way to convert between arcseconds [″] and milliradians [mrad] is to use the converter above. Manual conversions are also possible and can be done using the formulas provided below.
- Milliradians [mrad] = arcseconds [″] * π ÷ 648
- Arcseconds [″] = milliradians [mrad] * 648 ÷ π
Conversion between arcseconds and turns
A quick and precise conversion between arcseconds [″] and turns [tr] is straightforward and requires only multiplication or division by 1,296,000. The conversion from turns [tr] to arcseconds [″] is done by multiplying the value in turns [tr] by 1,296,000. To reverse the conversion, divide the value in arcseconds [″] by 1,296,000 to obtain turns [tr].
- Arcseconds [″] = turns [tr] * 1,296,000
- Turns [tr] = arcseconds [″] ÷ 1,296,000
Conversion between arcseconds and degrees
Conversions between arcseconds [″] and degrees [°] are straightforward and can be performed with simple math. The required conversion factor is 3,600. To convert a value from degrees [°] to arcseconds [″], multiply the number of degrees [°] by 3,600. For values in arcseconds [″], divide by 3,600 to get the equivalent in degrees [°].
- Arcseconds [″] = degrees [°] * 3,600
- Degrees [°] = arcseconds [″] ÷ 3,600
Conversion between arcseconds and revolutions
The conversion between arcseconds [″] and revolutions [r] is quick to perform and requires only basic mathematical operations an the conversion factor 1,296,000. Multiply the number of revolutions [r] by 1,296,000 to get the converted value in arcseconds [″]. To convert a value in arcseconds [″] back to revolutions [r], simply divide the amount of arcseconds [″] by 1,296,000.
- Arcseconds [″] = revolutions [r] * 1,296,000
- Revolutions [r] = arcseconds [″] ÷ 1,296,000
Arcsecond
Decimal places
Common units
Further units
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Centigons
Centiradians
Degrees
Gons
Milligons
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