CleanorTools
Area

Area Converter

Details

How to use Area Converter

What the tool does, how to run it, and what to expect from the result.

How to convert area units

Enter the area as a single number, select the unit you have, and select the unit you want. All ten area units, from square millimeters to square miles, update at once in the table below the result.

The base unit is the square meter and each factor is exact, so imperial and metric areas stay consistent to 12 significant figures rather than drifting through a chain of rounded conversions.

  • Multiply out any dimensions first so you have one area number.
  • Type it into the Value box, for example 100.
  • Pick the From unit, for example Square meter, and the To unit, for example Square foot.
  • Read the result and check the acre or hectare rows if you are dealing with land.
  • Copy the result, or Copy JSON to take the whole table into a spreadsheet or script.
Tips

Getting a better result out of Area Converter

Specific settings and thresholds, not general advice.

  • Every area factor is the length factor squared. A square foot is 0.3048 x 0.3048 = 0.09290304 m squared, exactly, which is why the number looks nothing like 0.3048.
  • That squaring is the classic trap: doubling a room's length and width quadruples its area, so you can never apply a length factor to an area figure.
  • 1 acre is exactly 43,560 square feet and 4046.8564224 square meters. A square mile is exactly 640 acres.
  • 1 hectare is exactly 10,000 square meters, which is 2.47105381467 acres. Land in Europe is priced per hectare, in the US per acre.
  • 1 square meter is 10.7639104167 square feet, so a 30 square meter studio is 322.917 square feet, and a 1,200 square foot apartment is 111.484 square meters.
Limits

What Area Converter does not do

The honest boundary, so you do not lose time finding it yourself.

  • No regional land units: no bigha, tsubo, pyeong, dunam, rood, or square rod.
  • It will not take dimensions. Enter 20 square meters, not 4 by 5.
  • No perimeter, no volume, and no tiling or material estimates.
  • One value at a time, and no unit-aware significant-figure control.
At a glance

Who Area Converter is for

A quick way to understand who this helps, what it solves, and where it connects next.

Best fit

Students, engineers, developers, makers, and anyone who needs a quick, accurate area conversion.

Ideal for

Fast, reliable area conversions without installing an app or trusting a server with your numbers.

FAQ

Common questions

Short answers for the questions people usually have before trying a utility like this.

Does my data get uploaded anywhere?

No. Everything runs locally in your browser and nothing is sent to a server.

Is this free to use?

Yes. It is completely free, with no account, no signup, and no usage limits.

Does it work on a phone?

Yes. The page runs in any modern mobile browser, on iPhone and Android alike, with no app to install.

How many square feet is 100 square meters?

1076.39104167 square feet. The factor is 10.7639104167 per square meter, which is the reciprocal of 0.09290304, the exact size of a square foot in square meters.

Why is a square foot 0.0929 and not 0.3048?

0.3048 is the linear factor for a foot. Area needs that factor squared, and 0.3048 squared is 0.09290304. Applying the linear factor to an area understates it by a factor of about 3.28, which is the single most common mistake in area conversion.

How big is an acre in square feet?

Exactly 43,560 square feet, or 4046.8564224 square meters. For scale, a full American football field including both end zones is about 1.32 acres, and a square mile is 640 acres.

Can I enter room dimensions like 4 m by 5 m?

No. Multiply them yourself and enter the product: 4 x 5 gives 20, so enter 20 with Square meter selected. The tool converts an area value, it does not compute one from dimensions.

How do hectares and acres compare?

1 hectare is 2.47105381467 acres, so a hectare is roughly two and a half acres. Going the other way, 1 acre is 0.404685642 hectares. Both are in the unit list along with square kilometers and square miles.

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