Area Converter

Use this area converter to turn square meters into square feet, acres into hectares, or square miles into square kilometers. It covers ten metric and imperial units.

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How to use the Area Converter

  1. Type the Value you want to convert.
  2. Pick the unit it is in under From, and the unit you want under To. The swap button flips them.
  3. The answer updates as you type. The table below it shows the same value in every other unit, each with its own copy button.

How it works

Area units are squares of length units, so their factors are the length factor squared:

1 ft² = 0.3048² m² = 0.09290304 m²
1 acre = 43,560 ft² = 4,046.8564224 m²
1 hectare = 100 m × 100 m = 10,000 m²
result = value × from-unit (m²) ÷ to-unit (m²)

Examples

  • 1 m² = 10.76391 ft².
  • 1 acre = 0.404686 ha, or 4,046.86 m².
  • 1 ha = 2.471054 acres.
  • 1 mi² = 2.589988 km² = 640 acres.

Square meter to square foot conversion table

Square meter (m²)Square foot (ft²)
1 m²10.76391 ft²
5 m²53.819552 ft²
10 m²107.639104 ft²
20 m²215.278208 ft²
50 m²538.195521 ft²
75 m²807.293281 ft²
100 m²1,076.391042 ft²
150 m²1,614.586563 ft²
200 m²2,152.782083 ft²
500 m²5,381.955208 ft²

Floor plans: a 100 m² apartment is about 1,076 ft².

Acre to hectare conversion table

Acre (acre)Hectare (ha)
0.25 acre0.101171 ha
0.5 acre0.202343 ha
1 acre0.404686 ha
2 acre0.809371 ha
5 acre2.023428 ha
10 acre4.046856 ha
20 acre8.093713 ha
50 acre20.234282 ha
100 acre40.468564 ha
640 acre258.998811 ha

Area units and their size in square meters

UnitSymbolEquals
Square millimetermm²0.000001 m²
Square centimetercm²0.0001 m²
Square meterm²1 m²
Hectareha10,000 m²
Square kilometerkm²1,000,000 m²
Square inchin²0.00064516 m²
Square footft²0.092903 m²
Square yardyd²0.836127 m²
Acreacre4,046.856422 m²
Square milemi²2,589,988.110336 m²

Squaring the factor

A common mistake is to use a length factor for an area. There are 3.28 feet in a meter, but 10.76 square feet in a square meter, because both sides of the square are converted. The same goes for 100 cm in a meter but 10,000 cm² in a square meter.

Land is usually measured in hectares in metric countries and in acres in the US and UK. A hectare is a square 100 m on each side; an acre is roughly 70% of a soccer pitch.

Limitations

  • Area can't be negative.
  • Traditional regional land units (such as the jerib or the rai) are not included.

Frequently asked questions

How many square feet are in a square meter?

1 m² is 10.7639 ft². To convert square feet to square meters, multiply by 0.09290304.

How many acres are in a hectare?

One hectare is 2.4711 acres, and one acre is 0.4047 hectares.

How many square feet are in an acre?

An acre is exactly 43,560 square feet.

Often used together with the Area Converter.