Area Converter
Convert between square meters, square feet, acres, hectares and more, with instant two-way conversion and a table of all units.
Area Converter — input your values
What does this conversion calculator do?
The area converter translates any surface measure between metric and imperial units — from square millimeters to square miles. It covers the everyday options like square meters, square feet and square yards as well as the land measures acres and hectares.
All conversions pass through the square meter as the reference base. The acre and hectare are included because they are standard for real estate, agriculture and land surveying in different parts of the world.
Formula and variables
1 acre = 43,560 ft²; 1 hectare = 10,000 m²; 1 square mile = 640 acres.
| Symbol | Meaning |
|---|---|
| factor(from) | How many square meters one 'from' unit equals |
| factor(to) | How many square meters one 'to' unit equals |
Worked example
Convert 1 acre into square meters.
- 1 acre = 4,046.8564224 m² exactly.
Answer: 1 acre ≈ 4,046.86 m².
Tips and common mistakes
Tips
- Handy anchors: 1 m² ≈ 10.76 ft², 1 hectare ≈ 2.47 acres, and 1 acre ≈ 4,047 m².
- For real estate, country matters: US and UK listings usually use square feet, while most other countries use square meters.
- A football (soccer) pitch is roughly 0.7 hectares, or about 1.7 acres — a useful mental scale for land.
- Remember that area conversions square the length ratio: 1 m = 3.28 ft, so 1 m² = 3.28² ≈ 10.76 ft².
Common mistakes to avoid
- Multiplying by the length ratio instead of the squared ratio — 1 m² is 10.76 ft², not 3.28 ft².
- Confusing hectares with acres: 1 hectare = 10,000 m² while 1 acre ≈ 4,047 m².
- Rounding acre-to-hectare conversions too aggressively when buying or selling land — the difference compounds quickly.
Area Converter — frequently asked questions
How many square feet are in a square meter?
One square meter equals approximately 10.7639 square feet. So 100 m² ≈ 1,076.4 ft².
How big is a hectare?
A hectare is 10,000 m², or about 2.47 acres. It is roughly the size of a football pitch with the run-off areas.
How many acres are in a square mile?
Exactly 640 acres. This is the classic US land measurement used in the Public Land Survey System.
How do I convert square feet to square meters?
Divide by 10.7639. For example, 1,000 ft² ÷ 10.7639 ≈ 92.9 m².
What's the difference between a hectare and an acre?
They are both land measures but not equal: a hectare is 10,000 m² and an acre is 4,046.8564224 m². A hectare is about 2.47 acres.
How many square inches are in a square foot?
Exactly 144 — because 12 inches × 12 inches = 144 in². Square units multiply the linear ratio.