Area Converter
Convert square meters, acres, hectares, square feet and more.
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Square Millimeter (mm²)
Square Centimeter (cm²)
| Unit | 1 mm² equals |
|---|---|
| Square Millimeter (mm²) | 1 |
| Square Centimeter (cm²) | 0.01 |
| Square Meter (m²) | 0.000001 |
| Hectare (ha) | 1e-10 |
| Square Kilometer (km²) | 1e-12 |
| Square Inch (in²) | 0.00155 |
| Square Foot (ft²) | 0.0000107639 |
| Square Yard (yd²) | 0.00000119599 |
| Acre (ac) | 2.47105e-10 |
| Square Mile (mi²) | 3.86102e-13 |
How it works
- 1 acre = 4046.86 m²
- 1 hectare = 10,000 m²
- 1 m² = 10.7639 ft²
Popular area conversions
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Frequently asked
How many square feet in an acre?
1 acre = 43,560 ft².
What is a hectare?
A hectare is 10,000 m² — roughly the size of a soccer field.
Where you'll actually use this
Area measures two-dimensional surface — the size of a floor, a country, or a piece of land. Metric uses square meters and hectares; imperial uses square feet and acres.
- Real estate
Apartment listings show square feet in the US, square meters in Europe, and tsubo or ping in parts of Asia.
- Farming & land
Farmland is sold in acres in North America and hectares in most of the rest of the world (1 ha ≈ 2.47 ac).
- Flooring & paint
Material coverage is often quoted per square meter or square foot — buy the wrong unit and you're off by an order of magnitude.
Common mistakes to avoid
- Squaring the linear factor
1 ft = 0.3048 m, so 1 ft² = 0.3048² ≈ 0.0929 m². Don't reuse the linear ratio.
- Hectare vs acre
A hectare is about 2.47 acres. Easy mix-up when comparing land listings across continents.
Did you know?
A standard FIFA pitch is roughly 7,000 m² — a handy mental shortcut for hectare estimates.
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Accuracy & sources
How this tool is built and verified.
- Source
- Standards-aligned factors
- Last reviewed
- Q2 2026
- Status
- Verified
- International System of Units (SI)BIPM — Bureau International des Poids et Mesures · The International System of Units (SI Brochure), 9th edition
- ISO 80000 — Quantities and UnitsISO / IEC · ISO 80000-1:2022
- Standards aligned
- Formula verified
- Editor reviewed
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