Area Converter

Convert square metric and imperial units, including square meters, hectares, acres, square feet, square miles, and square kilometers.

Convert instantly

Enter a value and choose the units. Your answer updates as you type.

Value

From

Result

0.01 Square centimeter (cm²)

Quick reference

Square millimeter (mm²)0.000001 base units
Square centimeter (cm²)0.0001 base units
Square meter (m²)1 base units
Hectare (ha)10000 base units
Square kilometer (km²)1000000 base units
Square inch (in²)0.00064516 base units
Square foot (ft²)0.09290304 base units

About the Area Converter

Area conversion is essential for real estate, agriculture, flooring, construction, and mapping. The converter uses square meters as its base and preserves exact standard relationships where defined: one international acre is 4,046.8564224 square meters, and one hectare is 10,000 square meters.

Because area scales in two dimensions, converting a side length and then squaring it should agree with the direct result here: 1 acre is 4,046.8564224 square meters. For side measurements use the Length Converter, and for a three-dimensional project such as concrete volume use the Volume Converter.

Frequently asked questions

How many square feet are in an acre?

One international acre equals exactly 43,560 square feet.

How many hectares are in a square kilometer?

One square kilometer equals 100 hectares.

Does area conversion square the conversion factor?

Yes. Area is two-dimensional, so a linear scale factor applies along both dimensions.

Take this calculation further

Browse the converters calculators collection for more tools in this subject.

For a related calculation, use Volume Converter to convert volume between milliliters, liters, US and Imperial gallons, quarts, pints, cups, fluid ounces, and cubic units. Alternatively, use Length Converter to convert length instantly between millimeters, meters, kilometers, inches, feet, yards, miles, nautical miles, and more with precise standard factors.

For the underlying method, read Length Conversion Without Guesswork: Metric, Imperial, and Precision.