How to convert X-units to feet (US survey)
1 x-unit is equal to 3.287657467 × 10⁻¹³ feet (US survey), and 1 foot (us survey) is equal to 3,041,679,403,000 X-units. To convert, multiply by the conversion factor:
feet (US survey) = X-units × 3.287657467 × 10⁻¹³
feet (US survey) = X-units ÷ 3,041,679,403,000Example: convert 1 xu to ft (US): 1 × 3.287657467 × 10⁻¹³ = 3.287657467 × 10⁻¹³ ft (US).
X-unit to Foot (US Survey) conversion table
| X-unit (xu) | Foot (US Survey) (ft (US)) |
|---|---|
| 0.01 xu | 3.287657467 × 10⁻¹⁵ ft (US) |
| 0.1 xu | 3.287657467 × 10⁻¹⁴ ft (US) |
| 1 xu | 3.287657467 × 10⁻¹³ ft (US) |
| 2 xu | 6.575314933 × 10⁻¹³ ft (US) |
| 3 xu | 9.8629724 × 10⁻¹³ ft (US) |
| 5 xu | 1.643828733 × 10⁻¹² ft (US) |
| 10 xu | 3.287657467 × 10⁻¹² ft (US) |
| 20 xu | 6.575314933 × 10⁻¹² ft (US) |
| 50 xu | 1.643828733 × 10⁻¹¹ ft (US) |
| 100 xu | 3.287657467 × 10⁻¹¹ ft (US) |
| 250 xu | 8.219143667 × 10⁻¹¹ ft (US) |
| 500 xu | 1.643828733 × 10⁻¹⁰ ft (US) |
| 1,000 xu | 3.287657467 × 10⁻¹⁰ ft (US) |
About the x-unit
The X-unit (about 1.002 × 10⁻¹³ m) was used to express X-ray and gamma-ray wavelengths before the ångström and picometer became standard.
Symbol: xu · 1 xu = 1.00208 × 10⁻¹³ m · Category: Atomic & physics
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