How to convert feet (US survey) to atomic units of length
1 foot (us survey) is equal to 5,759,896,748 atomic units of length, and 1 a.u. of length is equal to 1.736142233 × 10⁻¹⁰ feet (US survey). To convert, multiply by the conversion factor:
atomic units of length = feet (US survey) × 5,759,896,748
atomic units of length = feet (US survey) ÷ 1.736142233 × 10⁻¹⁰Example: convert 1 ft (US) to a₀: 1 × 5,759,896,748 = 5,759,896,748 a₀.
Foot (US Survey) to A.u. of Length conversion table
| Foot (US Survey) (ft (US)) | A.u. of Length (a₀) |
|---|---|
| 0.01 ft (US) | 57,598,967.48 a₀ |
| 0.1 ft (US) | 575,989,674.8 a₀ |
| 1 ft (US) | 5,759,896,748 a₀ |
| 2 ft (US) | 11,519,793,500 a₀ |
| 3 ft (US) | 17,279,690,240 a₀ |
| 5 ft (US) | 28,799,483,740 a₀ |
| 10 ft (US) | 57,598,967,480 a₀ |
| 20 ft (US) | 115,197,935,000 a₀ |
| 50 ft (US) | 287,994,837,400 a₀ |
| 100 ft (US) | 575,989,674,800 a₀ |
| 250 ft (US) | 1,439,974,187,000 a₀ |
| 500 ft (US) | 2,879,948,374,000 a₀ |
| 1,000 ft (US) | 5,759,896,748,000 a₀ |
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
About the a.u. of length
The atomic unit of length is the Bohr radius, about 5.29 × 10⁻¹¹ m: the most probable distance between the proton and electron in a hydrogen atom.
Symbol: a₀ · 1 a₀ = 5.291772109 × 10⁻¹¹ m · Category: Atomic & physics