Convert Square Yards to Rai
Convert Square Yards (yd²) to Rai (rai) instantly and accurately.
Conversion Formula
rai = yd² × 0.0005225796
About Square Yards
A square yard (yd²) is an imperial unit of area equal to a square with sides of one yard (3 ft × 3 ft or 9 ft²). It is commonly used for measuring carpet, fabric, and concrete in construction projects. A queen-size mattress covers about 5 yd², and a typical driveway might require 30-50 yd² of concrete. This unit is particularly common in the textile, carpeting, and landscaping industries in imperial-system countries.
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.
Quick Reference Table
| Square Yards (yd²) | Rai (rai) |
|---|---|
| 1 yd² | 0.00052258 rai |
| 2 yd² | 0.00104516 rai |
| 5 yd² | 0.0026129 rai |
| 10 yd² | 0.0052258 rai |
| 25 yd² | 0.0130645 rai |
| 50 yd² | 0.026129 rai |
| 100 yd² | 0.052258 rai |