Area Converter
From hectares to square metres or from acres to m²: convert any area exactly to the unit you need for land, a plot or a building plan.
Result
10,000 m²
Result
How this was calculated
- 1To m²1 ha × 10,000 = 10,000 m²
- 2To m²÷ 1 = 10,000 m²
Formula
Result = value × (from-factor ÷ to-factor), relative to the square metre
Every area unit has a fixed factor to the square metre: 1 hectare = 10,000 m², 1 are = 100 m², 1 acre = 4,046.8564224 m². The calculator converts your value to m² first and then from m² to the target unit, so every combination is correct without separate formulas.
Step by step
- 1Enter the value you want to convert.
- 2Choose the unit you are converting from.
- 3Choose the unit to convert to and read the result.
Worked examples
1 hectare to m²
→ 10,000 m².
1 acre to m²
→ 4,046.86 m².
Reference table
| Unit | In m² |
|---|---|
| 1 mm² | 0.000001 |
| 1 cm² | 0.0001 |
| 1 dm² | 0.01 |
| 1 m² | 1 |
| 1 are | 100 |
| 1 hectare (ha) | 10,000 |
| 1 km² | 1,000,000 |
| 1 acre | 4,046.86 |
| 1 ft² (foot) | 0.0929 |
Common mistakes
- Thinking 1 hectare is 1,000 m²; it is 10,000 m².
- Confusing are and hectare: 1 hectare = 100 ares.
- Forgetting to square the length: 1 m = 100 cm, but 1 m² = 10,000 cm².
When to use it
- Converting the size of a plot of land.
- Turning an area listed in acres abroad into m².
- Checking floor or roof area for a building project.
Frequently asked questions
How many m² is 1 hectare?
1 hectare is exactly 10,000 m², i.e. a square of 100 by 100 metres.
How many m² is 1 acre?
1 acre is 4,046.8564224 m², about 0.4 hectares.
Are these conversion factors exact?
Yes. The hectare and are are exactly defined, and the acre is an exact multiple of the square metre.
Why does 1 m² equal 10,000 cm²?
Because area is a length squared: 100 cm × 100 cm = 10,000 cm².
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