Convert vietnamese ngan to acre effortlessly
1 ngan x 0.123552 = 0.123552 ac
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Land measurement conversions don't need to make your head spin. Whether you're evaluating rice field sizes in Vietnam's Mekong Delta or comparing international property listings, understanding the relationship between ngan and acres is simpler than you might think. Let's break it down together, one square meter at a time.
Unit definitions
What is a vietnamese ngan (ngan)?
- Description: A traditional unit of area primarily used in Vietnam
- Symbol: None standardized, often spelled out as "ngan"
- Common uses: Measuring agricultural land, real estate transactions
- Definition: 1 ngan = 500 square meters (m²)
What is an acre (ac)?
- Description: Imperial unit of area used in the United States and UK
- Symbol: ac
- Common uses: Measuring large land parcels, farms, and forests
- Definition: 1 acre = 4,046.86 square meters (m²)
Conversion formula
The magic behind the curtain? It's all about bridging metric and imperial systems:
acres = ngan × 0.123552
or equivalently
ngan = acres × 8.09371
This formula stems from the fundamental relationship:
1 ngan (500 m²) ÷ 1 acre (4,046.86 m²) = 0.123552
Example calculations
- Converting 3 ngan to acres:
3 × 0.123552 = 0.370656 acres
That's slightly larger than a standard Manhattan city block - Converting 5 acres to ngan:
5 × 8.09371 = 40.46855 ngan
Equivalent to about 20,235 square meters of farmland
Conversion tables
Vietnamese ngan to acres
| Ngan | Acres |
|---|---|
| 1 | 0.123552 |
| 2 | 0.247104 |
| 5 | 0.617760 |
| 10 | 1.235520 |
| 20 | 2.471040 |
| 50 | 6.177600 |
| 100 | 12.355200 |
Acres to vietnamese ngan
| Acres | Ngan |
|---|---|
| 1 | 8.09371 |
| 2 | 16.18742 |
| 5 | 40.46855 |
| 10 | 80.93710 |
| 20 | 161.87420 |
| 50 | 404.68550 |
| 100 | 809.37100 |
Historical background
The ngan's story begins during Vietnam's French colonial period (1887-1954), when metric system units were introduced. Local communities adapted these measurements to create hybrid units like teh ngan, which roughly corresponded to half a mẫu (another traditional unit equal to 3,600 m²). The acre's roots go back further – medieval English farmers defined it as the area one man could plow in a day using oxen.
Interesting facts
- Size perspective: 1 ngan (500 m²) equals about 10% of an American football field (5,351 m²)
- Urban vs rural: In Hanoi's urban districts, land prices often get quoted per square meter, while rural areas still use ngan
- Cultural adaptation: Some Vietnamese use "cong" (1,000 m²) alongside ngan, creating a 2:1 ratio
- Global oddity: Only three countries officially use acres: USA, Liberia, and Myanmar
- Metric future: Vietnam plans full metric adoption by 2045, but ngan persists in daily use
FAQ
Yes, the ngan remains widely used in Vietnam for measuring agricultural land and property, especially in rural areas.
Our conversion uses the exact relationship of 1 ngan = 500 m² and 1 acre = 4046.86 m², ensuring accuracy to six decimal places.
Countries like the United States retain acre measurements due to historical traditions in land surveying and real estate practices.
While our tool is accurate, always consult local authorities for legally binding measurements due to regional variations.
The ngan (500 m²) is smaller than Thailand's rai (1,600 m²) but larger than Japan's tsubo (3.306 m²).