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Area, laid out on the floor.

Convert between square inches, feet, yards and miles, acres, square centimeters, meters and kilometers, and hectares — then see your area as a square, tiled in both units, next to a familiar space.

m²
20 m² = 215.2782083 ft²
  • Acres0.004942108 ac
  • Hectares0.002 ha
  • Square yards23.9198 yd²
  • Square inches31,000.06 in²

Factor 1 m² = 10.7639104167 ft² · shown rounded; the calculation uses exact factors

Show this area in every unit
Same area in other units
Square centimeters (cm²)200,000
Square meters (m²)20
Hectares (ha)0.002
Square kilometers (km²)0.00002
Square inches (in²)31,000.062
Square feet (ft²)215.2782083
Square yards (yd²)23.91980093
Acres (ac)0.004942107629
Square miles (mi²)0.000007722043171
  • InstantUpdates as you type
  • Exact factorsNIST definitions
  • On your deviceNothing is uploaded
  • No sign-upFree to use

Floor plan to scale · your area as a square

Your area is drawn as a square. The solid grid counts the unit you entered and the dashed grid the unit you converted to; when a single unit square would be too small to see, each grid square groups several (the legend says how many). The dashed outline is a familiar space at the same scale.

How to use it

  1. Type an area. Commas, decimals and scientific notation all work.
  2. Pick the unit you have and the unit you want; swap reverses them and keeps the area.
  3. Check the floor plan: count the squares, or compare with the outlined court, field or bed.

How the conversion works

An area unit is a length unit squared, so its factor is the length factor squared. Because the foot is exactly 0.3048 m, every factor below is exact:

1 ft² = 0.3048² m² = 0.09290304 m² (exact)

1 yd² = 9 ft² = 0.83612736 m² (exact)

1 acre = 43,560 ft² = 4,046.8564224 m² (exact)

1 hectare = 10,000 m² ≈ 2.4711 acres

1 mi² = 640 acres = 2.589988110336 km² (exact)

A common mistake is to use the length factor: 1 m is about 3.28 ft, but 1 m² is about 10.76 ft² (3.28 × 3.28). The drawing makes this visible: one square meter holds almost eleven square feet.

Worked examples

1 acre in square feet

1 × 43,560

43,560 ft²

20 m² in square feet

20 ÷ 0.09290304

215.28 ft²

1,000 ft² in square meters

1,000 × 0.09290304

92.90304 m²

1 hectare in acres

10,000 ÷ 4,046.8564224

2.4711 ac

1 square mile in acres

5,280² ÷ 43,560

640 ac

Where this comes up

  • Homes and rentals: US listings in square feet, European listings in square meters.
  • Flooring and paint: buying materials by the square foot or square yard.
  • Land: acres in the US, hectares almost everywhere else.
  • Maps and geography: square miles versus square kilometers.

Accuracy and rounding

Factors are exact and results are rounded only for display. This converter uses the international foot; the retired US survey foot would change the acre by about 4 parts per million. Sizes of the comparison spaces come from published rules (tennis, basketball, football, ISO card sizes) or are labeled as typical.

Questions

How many square feet are in a square meter?

About 10.7639. Exactly, 1 m² = 1 ÷ 0.09290304 ft².

How big is an acre?

43,560 square feet, or about 4,047 m² — roughly three quarters of an American football field including the end zones.

What is the difference between an acre and a hectare?

A hectare is 10,000 m², about 2.47 acres. An acre is about 0.405 hectares.

Why is my area drawn as a square?

Any shape can have the same area; a square is the easiest to compare. Its side is the square root of the area, shown in both metric and US units.

Sources

Keep measuring