• Mon-Sat: 9am to 6pm
  • Chonburi, Thailand, 20150

Unit Convertor

From

To

Thai Land Size Units: Rai, Ngan, and Square Wah (Tarang Wah)

Understand how land is measured in Thailand and convert between Rai, Ngan, Square Wah (Tarang Wah), and Square Meters with clear formulas and real examples.

Quick Conversion Reference

Rai → Ngan

1 Rai = 4 Ngan

Example: 2 Rai × 4 = 8 Ngan

Rai → Square Wah

1 Rai = 400 Square Wah

Example: 3 Rai × 400 = 1,200 Square Wah

Rai → Square Meters

1 Rai = 1,600 Square Meters (sqm)

Example: 2 Rai × 1,600 = 3,200 sqm

Ngan → Square Meters

1 Ngan = 400 Square Meters

Example: 8 Ngan × 400 = 3,200 sqm

Ngan → Rai

1 Ngan = 0.25 Rai

Example: 8 Ngan × 0.25 = 2 Rai

Square Wah → Square Meters

1 Square Wah = 4 Square Meters

Example: 500 Sqwah × 4 = 2,000 sqm

Important Notes

  • Thailand commonly uses Rai, Ngan, and Square Wah (Tarang Wah) for land size.
  • These are different from imperial or standard metric area units used elsewhere.
  • Land size is usually shown in the format Rai – Ngan – Sqwah.

How to read listings

If you see "Land for Sale 4-2-89", it means 4 Rai, 2 Ngan, 89 Sqwah.

  • 4-2-89 = 1,889 Sqwah
  • 4-2-89 = 7,556 sqm
  • 4-2-89 = 81,332.11 sqft

Use the converter above to instantly switch between Rai, Ngan, Sqwah, and Square Meters when comparing land in Bangkok, Pattaya, and across Thailand.

Need help with a land valuation?