Area Converter
Convert between square feet, square meters, square yards, square inches, acres, hectares, and more.
What is Area Converter?
The area converter moves any area measurement between U.S. customary units (sq in, sq ft, sq yd, sq mi, acres) and metric units (sq cm, sq m, hectares, sq km). Useful for real estate listings, flooring and paint estimates, lot size comparisons, and farmland deals.
Formula
All conversions pass through square meters using exact factors:
- 1 sq ft = 0.09290304 m² (exact, derived from 1 ft = 0.3048 m)
- 1 sq yd = 9 sq ft, 1 acre = 43,560 sq ft = 4,046.8564224 m²
- 1 hectare = 10,000 m², 1 sq km = 1,000,000 m²
- 1 sq mi = 640 acres = 2,589,988 m²
Worked example
A 2,000 sq ft home:
- ≈ 185.8 m²
- ≈ 0.0459 acres
- ≈ 222.2 sq yd
A 1-acre lot ≈ 43,560 sq ft ≈ 4,047 m² ≈ the size of a U.S. football field without the end zones.
How to use this calculator
- Enter the area and its unit.
- All other units appear instantly — pick whichever you need.
Frequently asked questions
How many sq ft in an acre?
43,560 square feet — equal to 1 chain by 1 furlong in old English surveying. A square acre measures roughly 208.71 ft on each side.
Is a hectare bigger than an acre?
Yes. 1 hectare = 10,000 m² ≈ 2.471 acres. Hectares are the standard unit for land outside the U.S.; acres dominate in the U.S. and Canada.
What unit is used in U.S. real estate?
Homes and commercial space: square feet. Lot size under 1 acre: square feet. Larger lots and farmland: acres.
What is a square foot of paint coverage?
One U.S. gallon of interior latex covers about 350 sq ft on a smooth surface. Textured or porous surfaces reduce coverage significantly — use the Paint Calculator for a full estimate.