Area Conversion Calculator 2026
Convert between 50+ area units — acres, hectares, square meters, square feet & more
Conversion Result
4,046.8564 m²
1 acre = 4,046.8564 m²
Understanding Area Units
📏 Square Meter (m²)
The SI unit of area. 1 m² = area of a square with 1-meter sides. Base unit for all metric area measurements.
🏡 Acre
Common for land measurement. 1 acre = 43,560 sq ft ≈ 4,047 m². Originally the area a yoke of oxen could plow in one day.
🌾 Hectare (ha)
1 hectare = 10,000 m² = 2.471 acres. Standard for agricultural land worldwide. About 2.5 football fields.
🏠 Square Foot (ft²)
Common in US/UK real estate. 1 ft² = 0.0929 m². Used for home sizes, room dimensions, and property listings.
Area Conversion Table
| Unit | Symbol | In Square Meters | Common Use |
|---|---|---|---|
| Square Meter | m² |
1 | SI base unit |
| Square Kilometer | km² |
1,000,000 | Large areas, countries |
| Hectare | ha |
10,000 | Agriculture, land |
| Are | a |
100 | Land measurement |
| Acre | ac |
4,046.8564 | US/UK land |
| Square Foot | ft² |
0.09290304 | Real estate |
| Square Yard | yd² |
0.83612736 | Flooring, fabric |
| Square Mile | mi² |
2,589,988 | Large land areas |
Frequently Asked Questions
How do I convert square meters to acres?
Divide square meters by 4,046.8564. Formula: acres = m² ÷
4,046.8564. Example: 10,000 m² = 2.471 acres.
How many square feet are in an acre?
One acre = 43,560 square feet exactly. This is a US survey
definition. To convert: ft² = acres × 43,560.
What is the difference between hectare and acre?
1 hectare = 10,000 m² = 2.471 acres. Hectares are metric (used
worldwide), while acres are imperial (used in US, UK). 1 acre ≈ 0.4047 hectares.
How do I convert square feet to square meters?
Multiply by 0.09290304. Formula: m² = ft² × 0.0929. Example: 1,000
ft² = 92.9 m². For reverse: ft² = m² × 10.764.
What is an are in land measurement?
An are = 100 square meters = 0.01 hectare. The centiare = 1 m²,
and decare = 1,000 m² = 0.1 hectare. Used in European land surveys.
How many square meters in a hectare?
1 hectare = 10,000 square meters exactly. Think of it as a 100m ×
100m square. To convert: ha = m² ÷ 10,000.
What is a section of land?
A section = 1 square mile = 640 acres = 2.59 km². Used in US
Public Land Survey System. A township = 36 sections.
How do I convert square kilometers to square miles?
Divide by 2.58999. Formula: mi² = km² ÷ 2.59. Example: 100 km² =
38.6 mi². Reverse: km² = mi² × 2.59.
What is a barn (unit of area)?
A barn = 10⁻²⁸ m². Used in nuclear physics for cross-section
measurements. Named because it's "as big as a barn" for nuclear particles!
How big is a morgen?
A morgen varies by region: Germany ≈ 2,500 m², South Africa ≈
8,565 m². Originally the land plowable in one morning.
What is the difference between survey and standard feet?
US survey foot = 1200/3937 m ≈ 0.3048006 m. Standard foot = 0.3048 m exactly.
Difference is ~2 ppm, significant for large land surveys.
How do I calculate area from length measurements?
For rectangles: Area = length × width. Ensure both are in same
units. For circles: A = πr². For triangles: A = ½ × base × height.
What is a tatami (Japanese area unit)?
A tatami ≈ 1.653 m² (varies by region). Traditional Japanese room
sizing. A 6-tatami room ≈ 9.9 m² ≈ 107 ft².
How many acres in a football field?
An American football field (including end zones) ≈ 1.32 acres.
Soccer pitch varies: 1.6-2.2 acres depending on dimensions.
What is a rood in land measurement?
A rood = ¼ acre = 10,890 ft² = 1,011.7 m². Historic English unit.
4 roods = 1 acre. Also called a rod (area).
How accurate is this area converter?
Uses JavaScript double-precision (64-bit) floating-point, providing ~15-16
significant digits. Based on internationally accepted conversion factors.
What are common area units for real estate?
US: square feet, acres. UK: square feet, acres. Europe: square meters, hectares.
Japan: tsubo, tatami. India: square feet, gaj, bigha.