How to convert feet (US survey) to X-units
1 foot (us survey) is equal to 3,041,679,403,000 X-units, and 1 x-unit is equal to 3.287657467 × 10⁻¹³ feet (US survey). To convert, multiply by the conversion factor:
X-units = feet (US survey) × 3,041,679,403,000
X-units = feet (US survey) ÷ 3.287657467 × 10⁻¹³Example: convert 1 ft (US) to xu: 1 × 3,041,679,403,000 = 3,041,679,403,000 xu.
Foot (US Survey) to X-unit conversion table
| Foot (US Survey) (ft (US)) | X-unit (xu) |
|---|---|
| 0.01 ft (US) | 30,416,794,030 xu |
| 0.1 ft (US) | 304,167,940,300 xu |
| 1 ft (US) | 3,041,679,403,000 xu |
| 2 ft (US) | 6,083,358,806,000 xu |
| 3 ft (US) | 9,125,038,209,000 xu |
| 5 ft (US) | 15,208,397,010,000 xu |
| 10 ft (US) | 30,416,794,030,000 xu |
| 20 ft (US) | 60,833,588,060,000 xu |
| 50 ft (US) | 152,083,970,100,000 xu |
| 100 ft (US) | 304,167,940,300,000 xu |
| 250 ft (US) | 760,419,850,700,000 xu |
| 500 ft (US) | 1.520839701 × 10¹⁵ xu |
| 1,000 ft (US) | 3.041679403 × 10¹⁵ xu |
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 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