How to convert astronomical units to gigameters
1 astronomical unit is equal to 149.5978707 gigameters, and 1 gigameter is equal to 0.006684587122 astronomical units. To convert, multiply by the conversion factor:
gigameters = astronomical units × 149.5978707
gigameters = astronomical units ÷ 0.006684587122Example: convert 15 au to Gm: 15 × 149.5978707 = 2,243.96806 Gm.
Astronomical Unit to Gigameter conversion table
| Astronomical Unit (au) | Gigameter (Gm) |
|---|---|
| 0.01 au | 1.495978707 Gm |
| 0.1 au | 14.95978707 Gm |
| 1 au | 149.5978707 Gm |
| 2 au | 299.1957414 Gm |
| 3 au | 448.7936121 Gm |
| 5 au | 747.9893535 Gm |
| 10 au | 1,495.978707 Gm |
| 20 au | 2,991.957414 Gm |
| 50 au | 7,479.893535 Gm |
| 100 au | 14,959.78707 Gm |
| 250 au | 37,399.46767 Gm |
| 500 au | 74,798.93535 Gm |
| 1,000 au | 149,597.8707 Gm |
About the astronomical unit
The astronomical unit is exactly 149,597,870,700 m, roughly the average distance from Earth to the Sun. It's used for distances within the solar system.
Symbol: au · 1 au = 149,597,870,700 m · Category: Astronomical
About the gigameter
A gigameter is one billion meters. The Moon orbits about 0.38 Gm from Earth, and the Sun's diameter is about 1.39 Gm.
Symbol: Gm · 1 Gm = 1,000,000,000 m · Category: Metric (SI)