Convert Barns to Feddan
Convert Barns (b) to Feddan (fed) instantly and accurately.
Conversion Formula
fed = b × 2.380952381e-32
About Barns
A barn (b) is a unit of area used in nuclear and particle physics to measure effective cross-sections of atomic nuclei and particle interaction probabilities. Equal to 10⁻²⁸ m² (10⁻²⁴ cm²), it was humorously named during the Manhattan Project - physicists joked that uranium nuclei were 'as big as a barn' at the subatomic scale. Particle physics experiments at accelerators like CERN report cross-sections in millibarns (mb), microbarns (μb), nanobarns (nb), and femtobarns (fb).
About Feddan
A feddan (فدان) is the primary unit of land area in Egypt, Sudan, and parts of the Arab world, equal to approximately 4,200 m² (1.038 acres or 0.42 hectares). Its name derives from the Arabic word for 'yoke of oxen,' reflecting its agricultural origins - similar to the British acre. Egypt reports its cultivated farmland in millions of feddan; the fertile Nile Delta that feeds Egypt is measured in feddan. The feddan is subdivided into 24 kirats (each ~175 m²). It remains the legal standard for agricultural land registration in Egypt and Sudan.
Quick Reference Table
| Barns (b) | Feddan (fed) |
|---|---|
| 1 b | 2.381 × 10-32 fed |
| 2 b | 4.762 × 10-32 fed |
| 5 b | 1.19 × 10-31 fed |
| 10 b | 2.381 × 10-31 fed |
| 25 b | 5.952 × 10-31 fed |
| 50 b | 1.19 × 10-30 fed |
| 100 b | 2.381 × 10-30 fed |