How to convert astronomical units to feet (US survey)
1 astronomical unit is equal to 490,805,680,800 feet (US survey), and 1 foot (us survey) is equal to 2.03746623 × 10⁻¹² astronomical units. To convert, multiply by the conversion factor:
feet (US survey) = astronomical units × 490,805,680,800
feet (US survey) = astronomical units ÷ 2.03746623 × 10⁻¹²Example: convert 1 au to ft (US): 1 × 490,805,680,800 = 490,805,680,800 ft (US).
Astronomical Unit to Foot (US Survey) conversion table
| Astronomical Unit (au) | Foot (US Survey) (ft (US)) |
|---|---|
| 0.01 au | 4,908,056,808 ft (US) |
| 0.1 au | 49,080,568,080 ft (US) |
| 1 au | 490,805,680,800 ft (US) |
| 2 au | 981,611,361,600 ft (US) |
| 3 au | 1,472,417,042,000 ft (US) |
| 5 au | 2,454,028,404,000 ft (US) |
| 10 au | 4,908,056,808,000 ft (US) |
| 20 au | 9,816,113,616,000 ft (US) |
| 50 au | 24,540,284,040,000 ft (US) |
| 100 au | 49,080,568,080,000 ft (US) |
| 250 au | 122,701,420,200,000 ft (US) |
| 500 au | 245,402,840,400,000 ft (US) |
| 1,000 au | 490,805,680,800,000 ft (US) |
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 foot (us survey)
The US survey foot is exactly 1200/3937 m (about 0.3048006 m), two parts per million longer than the international foot. It was officially retired at the end of 2022 but remains in older land records and state plane coordinates.
Symbol: ft (US) · 1 ft (US) = 0.3048006096 m · Category: US survey units