Thailand Land Area Converter
Convert between Rai, Ngaan, Square Wah, and Square Meters for Thailand land measurements.
Land Area Converter
Total Rai1.00 rai
Total Ngaan4.00 ngaan
Square Meters1,600 m²
Square Feet17,222 sqft
Acres0.395 acre
Hectares0.16 ha
Quick Conversion Tools
Thailand Land Measurement Units
- 1 Rai (ไร่) = 4 Ngaan = 400 Square Wah = 1,600 m² = 17,222 sqft = 0.395 acres
- 1 Ngaan (งาน) = 100 Square Wah = 400 m² = 4,306 sqft
- 1 Square Wah (ตร.ว.) = 4 m² = 43 sqft
- 1 Acre = 2.529 Rai = 4,047 m²
- 1 Hectare = 6.25 Rai = 10,000 m²
Understanding Thai Land Notation
Thai land areas are often written in the format: Rai-Ngaan-Wah
Example: "4-2-25 rai" means:
- 4 Rai + 2 Ngaan + 25 Square Wah
- = (4 × 1,600) + (2 × 400) + (25 × 4) = 6,400 + 800 + 100 = 7,300 m²
FAQs
How many square meters in 1 Rai?
1 Rai = 1,600 square meters (exactly). This was officially standardized when Thailand adopted the metric system in 1923.
What does Rai-Ngaan-Wah notation mean?
It's the traditional format: "X-Y-Z rai" means X rai, Y ngaan, and Z square wah. For example, "2-3-50 rai" = 2 rai + 3 ngaan + 50 wah.
Is Square Wah the same as Wah?
Yes! Square Wah (Tarang Wah) and Wah refer to the same unit: 4 m². Wah alone is a length unit (2 meters), but in land context means Square Wah.
How much land do I need for a house in Thailand?
Typical: 0.5-1 Rai (800-1,600 m²) for a house with garden. Minimum: 100-200 Square Wah (400-800 m²) for a small house.