Astronomical unit Converter
Created by: tinycalcs.com/en
Number of supported units: 46
Last update: 2026
The Astronomical unit Converter supports 46 different length units. This makes it possible to convert between astronomical units [au], metric, Anglo-American, nautical, astronomical, and other length units as desired. All length measurements are converted in real time and displayed with up to 20 decimal places, ensuring sufficient accuracy.
Conversion of astronomical units
In order to convert astronomical units [au] into another unit of length, a conversion value is required. This value can be determined using a conversion table. However, the table is relatively large, confusing, and difficult for inexperienced users to understand. The tool below provides a solution to this problem by allowing the rounded conversion values for astronomical units [au] to be queried directly from the conversion table.
Determine conversion factor
Conversion between astronomical units and millimeters
You can easily convert between millimeters [mm] and astronomical units [au] using the formulas provided below. For accurate results, it is important to follow the correct order of mathematical operations.
- Astronomical units [au] = millimeters [mm] ÷ 23,367 ÷ 64,021 ÷ 105
- Millimeters [mm] = astronomical units [au] * 23,367 * 64,021 * 105
Conversion between astronomical units and centimeters
The fastest and easiest way to convert between centimeters [cm] and astronomical units [au] is to use the converter above. Manual conversions are also possible and can be done using the formulas provided below.
- Astronomical units [au] = centimeters [cm] ÷ 23,367 ÷ 64,021 ÷ 104
- Centimeters [cm] = astronomical units [au] * 23,367 * 64,021 * 104
Conversion between astronomical units and decimeters
The two formulas below provide an easy way to convert between decimeters [dm] and astronomical units [au]. To ensure precise conversion results, it is important to follow the correct order of math operations.
- Astronomical units [au] = decimeters [dm] ÷ 23,367 ÷ 64,021 ÷ 103
- Decimeters [dm] = astronomical units [au] * 23,367 * 64,021 * 103
Conversion between astronomical units and meters
You can easily convert between meters [m] and astronomical units [au] using the formulas provided below. For accurate results, it is important to follow the correct order of mathematical operations.
- Astronomical units [au] = meters [m] ÷ 384,126 ÷ 389,450
- Meters [m] = astronomical units [au] * 384,126 * 389,450
Conversion between astronomical units and kilometers
A quick and precise conversion between astronomical units [au] and kilometers [km] is straightforward and requires only multiplication or division by 149,597,870.7. The conversion from astronomical units [au] to kilometers [km] is done by multiplying the value in astronomical units [au] by 149,597,870.7. To reverse the conversion, divide the value in kilometers [km] by 149,597,870.7 to obtain astronomical units [au].
- Kilometers [km] = astronomical units [au] * 149,597,870.7
- Astronomical units [au] = kilometers [km] ÷ 149,597,870.7
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