Area Conversion Calculator for
Most Popular Area Conversions

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The Area Conversion Calculator on this page will perform the 16 most popular standard and metric unit measurement conversions related to area.

This free online area converter will convert acres (ac), hectares (ha), square miles (mi2), square kilometers (km2), square yards (yd2), square meters (m2), and square feet (ft2) to and from their most popular counterparts.

Plus, unlike other online unit converters, this area converter will show the formula it used for converting as well as the step-by-step math it used to complete the conversion.

Finally, the area conversion calculator also provides a feature that will allow you to create your own custom, printable, area conversion chart. Just select the type you are converting from and to, enter the desired starting and ending measurements, and click the button. Cool!

Area Conversions

The following conversion chart lists the formulas used by the calculator to calculate its area conversions.

Area Conversion Formulas

Conversion Abbrev. Formula (rounded)
Acres to Hectares ac to ha ac x 0.404686
Hectares to Acres ha to ac ha x 2.471054
Acres to Square Feet ac to ft2 ac x 43560
Square Feet to Acres ft2 to ac ft2 x 0.000023
Acres to Square Kilometers ac to km2 ac x 0.004047
Square Kilometers to Acres km2 to ac km2 x 247.10538147
Acres to Square Meters ac to m2 ac x 4046.856422
Square Meters to Acres m2 to ac m2 x 0.000247
Acres to Square Miles ac to mi2 ac x 0.001563
Square Miles to Acres mi2 to ac mi2 x 640
Acres to Square Yards ac to yd2 ac x 4840
Square Yards to Acres yd2 to ac yd2 x 0.000207
Square Feet to Hectares ft2 to ha ft2 x 0.000009
Hectares to Square Feet ha to ft2 ha x 107639.10417
Square Miles to Hectares mi2 to ha mi2 x 258.998811
Hectares to Square Miles ha to mi2 ha x 0.003861

With that, let's use the Area Conversion Calculator to convert acres, hectares, square miles, square kilometers, etc., or to create a custom, printable area conversion chart.

Area Conversion Calculator
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Instructions: Click the radio button next to the desired area conversion option, enter the associated units in the field provided, then click the "Convert Area" button.

Mouse over the blue question marks for a further explanation of each entry field. More in-depth explanations can be found in the glossary of terms located beneath the Area Conversion Calculator.

Most Popular Area Conversions
Convert Acres to Hectares Convert Hectares to Acres
Convert Acres to Square Feet Convert Square Feet to Acres
Convert Acres to Square Kilometers Convert Square Kilometers to Acres
Convert Acres to Square Meters Convert Square Meters to Acres
Convert Acres to Square Miles Convert Square Miles to Acres
Convert Acres to Square Yards Convert Square Yards to Acres
Convert Square Feet to Hectares Convert Hectares to Square Feet
Convert Square Miles to Hectares Convert Hectares to Square Miles
Help Enter Acres:
Help Rounding:
Help Hectares equivalent:
Help Start: End:

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Area Conversion Calculator Glossary of Terms

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Measurement input field: Enter the area measurement conversion units to convert from the type listed in bold on this line.

Convert Area button: After entering the area measurement conversion units to convert, select your preference for rounding the results (number of decimal places) and then click this button to complete the conversion.

Measurement output field: This is the area measurement conversion units entered above, converted to the type listed in bold on this line.

Printable Area Conversion Chart button: To create a custom area conversion chart that you can print out, select the conversion type from the drop-down menu and enter the starting and ending measurement based on the first abbreviation appearing in the selected conversion type. Clicking this button will open a printer friendly window containing your custom area conversion chart.

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