Thai Area Converter (Rai, Ngan, Tarang Wa)
Convert rai, ngan, and tarang wa to square meters, square feet, acres, and hectares instantly.
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What is Thai Area Converter (Rai, Ngan, Tarang Wa)?
The Thai Area Converter translates between Thailand’s traditional land units (rai, ngan, tarang wa) and international area units (square meters, square kilometers, square feet, acres, hectares). It also decomposes any area into the rai-ngan-wa notation used on Thai land deeds and contracts.
Key Benefits
- Read Thai property listings and chanote deeds without mental math.
- Negotiate land deals with exact metric, acre, and hectare equivalents.
- Avoid unit mistakes in contracts, appraisals, and construction planning.
- Works offline and keeps sensitive land data on your device.
Common Use Cases
- •Checking the size of a plot listed in rai against square meters.
- •Converting hectare-based farm reports into rai for local paperwork.
- •Comparing Thai land prices per rai with international price-per-acre.
- •Filling in bilingual contracts that need both unit systems.
How to Use the Thai Area Converter
- Enter the area value: Type the land area you want to convert, for example 2.5 for two and a half rai.
- Pick the source unit: Choose rai, ngan, tarang wa, or any metric/imperial unit from the dropdown.
- Read the results grid: All eight units update instantly, and the rai-ngan-wa notation shows the traditional Thai breakdown.
- Copy or reuse: Use Copy all results to grab every conversion as plain text for notes, emails, or contracts.
Key Features
- Live conversion across 8 units: rai, ngan, tarang wa, m², km², sq ft, acres, hectares.
- Automatic rai-ngan-wa notation breakdown matching Thai land deeds.
- Exact official factors: 1 rai = 1,600 m², 1 hectare = 6.25 rai.
- Copy-all export of every converted value as plain text.
- Fully offline — no land data ever leaves the browser.
Frequently Asked Questions
How many square meters is 1 rai?
One rai equals exactly 1,600 square meters, which is 4 ngan or 400 tarang wa. Type 1 rai into the converter to see it in acres (about 0.3954) and hectares (exactly 0.16) too.
How do I read the rai-ngan-wa notation on a Thai land deed?
Thai deeds write land as rai-ngan-wa, for example 2-3-50 means 2 rai, 3 ngan, 50 tarang wa (4,600 m²). This converter produces that exact breakdown automatically from any input value.
How many rai are in an acre or a hectare?
One acre is about 2.5293 rai, and one hectare is exactly 6.25 rai. These factors are built in, so you can convert in either direction without memorizing them.
Does the converter work offline?
Yes. All math runs locally in your browser with no API calls, so it works offline and your land figures are never uploaded anywhere.