Convert Rai to Feddan
Convert Rai (rai) to Feddan (fed) instantly and accurately.
Conversion Formula
fed = rai × 0.380952381
About Rai
A rai (ไร่) is the standard Thai unit of land area, defined as exactly 1,600 m² (40 m × 40 m). It is used throughout Thailand for all land measurement - from rice paddies to urban plots and national parks. Thai real estate listings always quote land area in rai, ngan (400 m² = ¼ rai), and talang wah (4 m² = 1 square wah). Thailand's total rice-paddy area is reported in millions of rai. One rai equals approximately 0.395 acres or 0.16 hectares.
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
| Rai (rai) | Feddan (fed) |
|---|---|
| 1 rai | 0.380952 fed |
| 2 rai | 0.761905 fed |
| 5 rai | 1.90476 fed |
| 10 rai | 3.80952 fed |
| 25 rai | 9.52381 fed |
| 50 rai | 19.0476 fed |
| 100 rai | 38.0952 fed |