Convert between metric area units, acres and square feet

Construction and property professionals use it to compare an area in metric units, acres or square feet before planning or reporting.

Convert area measurements among metric units, acres and square feet. Everything runs in your browser, so no input is uploaded or stored.

How to use

Enter the area measurement you want to change on the first line of the field.
State the starting unit from mm2, cm2, m2, ha, km2, in2, ft2 or acre.
Write the unit you want the equivalent in on the next line.
Run convert to display the area in the new unit.
Double-check the answer when mixing metric and imperial units.

Example

To compare a one hundred and twenty square metre plot with a listing in square feet, enter the value, set m2 as the source and ft2 as the target. The tool returns the equivalent, which makes a property document or plan easier to read. Check the rounding.

Input

120
m2
ft2

Output

120 m2 = 1291.66925001 ft2

Limits and formats

It does not measure real land and cannot replace a survey.
Unit codes must match the options offered exactly, or the conversion will not start.
A conversion ignores the shape of the plot and any local losses or slopes.
Verify the figure before placing it in an official document or contract.
Very large areas can produce hard-to-read numbers, so round them when appropriate.

Where processing happens

The calculation runs in your browser. The value and units you type stay on your device and are not uploaded. The equivalent appears on the page straight away and can be copied into your notes.

Frequently asked questions

Which unit should I use for a plot of land?

It depends on the country and the document. Square metres and hectares are common in metric systems, while acres and square feet appear in many English-speaking markets. Convert to match the listing or contract.

Can I convert very small areas?

Yes, square millimetres and square centimetres are available. They suit technical plans or small objects. For a room or a plot, square metres, hectares, square feet or acres are usually more practical because the numbers stay readable.

Is the result rounded?

The tool shows an equivalent based on the value you enter. Depending on how many decimals you need, you may round it yourself. Keep enough digits before reducing the number for a report or listing.