Land listings and property documents express area in a mix of units depending on the country — square meters, acres, or hectares. This calculator finds all three at once from a rectangular plot's length and width.
The formula
For a 50 m by 30 m plot: area = 1,500 m², which is 1,500 ÷ 10,000 = 0.15 hectares, or 1,500 ÷ 4,046.86 ≈ 0.37 acres.
Worked examples
| Length | Width | m² | Hectares | Acres |
|---|---|---|---|---|
| 100 m | 100 m | 10,000 | 1.0 | 2.47 |
| 25 m | 20 m | 500 | 0.05 | 0.12 |
| 200 m | 150 m | 30,000 | 3.0 | 7.41 |
Irregularly shaped land
This calculator assumes a simple rectangular plot. For irregular shapes, split the land into rectangular or triangular sections, calculate each separately, and add them together — or use a surveyed area figure from official property documents for accuracy.
Common mistakes
- Mixing up hectares and acres. A hectare (10,000 m²) is larger than an acre (about 4,047 m²) — roughly 2.47 acres per hectare.
- Estimating irregular land as a simple rectangle. This introduces significant error for non-rectangular plots; use a proper survey for precise legal or transaction purposes.
Frequently asked questions
How do I calculate land area in acres?
Multiply length by width to get square meters, then divide by 4,046.86 to convert to acres.
How many acres are in a hectare?
One hectare equals approximately 2.47 acres.
Does this work for irregularly shaped land?
Not directly — it assumes a rectangular plot. For irregular shapes, split the area into rectangular or triangular sections and add them together, or use a professional survey for precise figures.