Gigameter to Astronomical unit Converter (and vice versa)
Created by: tinycalcs.com/en
Number of supported units: 2
Last update: 2026
This converter allows you to convert gigameters [Gm] to astronomical units [au] or astronomical units [au] to gigameters [Gm]. Calculations are performed in both directions. The calculation result and the entered value are displayed with up to 20 decimal places for maximum accuracy.
Convert gigameters to astronomical units
There are two simple ways to convert gigameters [Gm] to astronomical units [au]. In the first calculation method, the value in gigameters [Gm] is divided by the rounded conversion factor of 149.5979. The second method multiplies the value in gigameters [Gm] by the rounded conversion factor of 0.0067.
- Astronomical units [au] ≈ gigameters [Gm] ÷ 149.5979
- Astronomical units [au] ≈ gigameters [Gm] * 0.0067
However, rounded conversion values are only suitable for rough conversions, as rounding errors can occur in the calculation result. The most accurate conversion of gigameters [Gm] to astronomical units [au] can be achieved using the following calculation method.
- Astronomical units [au] = gigameters [Gm] ÷ 23,367 ÷ 64,021 * 107
Convert astronomical units to gigameters
Converting astronomical units [au] to gigameters [Gm] is easy and can be done in two ways. The first method involves multiplication, in which the value in astronomical units [au] is multiplied by the rounded conversion factor of 149.5979. The second variant is a division. Here, the value in astronomical units [au] is divided by the rounded conversion factor of 0.0067.
- Gigameters [Gm] ≈ astronomical units [au] * 149.5979
- Gigameters [Gm] ≈ astronomical units [au] ÷ 0.0067
However, rounded conversion values do not allow for exact calculations because rounding errors can occur in the calculation result. The most accurate conversion of astronomical units [au] to gigameters [Gm] can be achieved using the following calculation method.
- Gigameters [Gm] = astronomical units [au] * 23,367 * 64,021 ÷ 107
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