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Units & converters

Area converter

Compare areas in mm², cm², m², hectares, km², square feet and acres based on the international foot.

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01

Your inputs

The starting values are an example.

Decimals: 12.5 · Thousands: 1,234.56. Follow the field instructions for lists.

02

Your result

Enter your values and select Calculate.

Your calculation will appear here.

Your result will include the relevant values and units.

Understand the calculation

Formula and example

How it is calculated

Converted value = original value × source factor / target factor

Worked example

1 Hectare (ha) = 10000 m².

Things to check

  • An area conversion squares the length factor: one square metre contains 10,000 square centimetres. One acre here is 43,560 international square feet, or 4,046.8564224 m².
  • Rounding is applied only to displayed results. Very small or very large values may appear in scientific notation.

Sources and references