How big is an acre in square feet and square metres?

1 acre = 43,560 ft² = 4,046.8564224 m² ≈ 0.4047 hectares. It's the area of a square about 208.7 ft (63.6 m) on each side.

How do hectares and acres relate?

1 hectare = 10,000 m² ≈ 2.4711 acres, and 1 acre ≈ 0.4047 hectares. A hectare is the area of a 100 m × 100 m square.

How many square feet are in a square metre?

1 m² ≈ 10.7639 ft², and 1 ft² = 0.09290304 m². To go the other way, divide square feet by about 10.764 to get square metres.

How large is a square mile?

1 mi² = 640 acres = 2.589988110336 km² ≈ 259 hectares. A square kilometre, by comparison, is about 0.386 mi².

Area Converter

Enter an area in any common unit and see it in all the others instantly: square millimetre (mm²), square centimetre (cm²), square metre (m²), hectare (ha), square kilometre (km²), square inch (in²), square foot (ft²), square yard (yd²), acre and square mile (mi²). The value is converted to square metres internally and then to every unit, so conversions are exact. Handy for real estate and land (acres, hectares, ft², m²), floor plans and rooms (m² ↔ ft²), gardening and farming, mapping and construction. Everything is computed locally in your browser.

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ValueUnit

mm²

1,000,000

cm²

10,000

m²

ha (hectare)

0.0001

km²

1.0000e-6

in²

1,550.0031

ft²

10.76391

yd²

1.19599

acre

0.00024711

mi²

3.8610e-7

How to use

Type an area value.
Pick the unit you entered it in.
Read the value in every other unit and copy whichever you need.

Frequently asked questions

How big is an acre in square feet and square metres?: 1 acre = 43,560 ft² = 4,046.8564224 m² ≈ 0.4047 hectares. It's the area of a square about 208.7 ft (63.6 m) on each side.
How do hectares and acres relate?: 1 hectare = 10,000 m² ≈ 2.4711 acres, and 1 acre ≈ 0.4047 hectares. A hectare is the area of a 100 m × 100 m square.
How many square feet are in a square metre?: 1 m² ≈ 10.7639 ft², and 1 ft² = 0.09290304 m². To go the other way, divide square feet by about 10.764 to get square metres.
How large is a square mile?: 1 mi² = 640 acres = 2.589988110336 km² ≈ 259 hectares. A square kilometre, by comparison, is about 0.386 mi².

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