Convert Acres to Square Meters

Enter the area in acres below to get the value converted to square meters.

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Results in Square Meters:
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1 ac = 4,046.856422 sq m

How to Convert Acres to Square Meters

Calculators can be used to convert measurements from one unit to another

Convert acres to square meters with this simple formula:

square meters = acres × 4,046.856422

Converting an acre area measurement to a square meter measurement involves multiplying the area by the conversion ratio to find the result. One acre is equal to 4,046.856422 square meters, so to convert simply multiply by 4,046.856422.

For example, here's how to convert 5 acres to square meters using the formula above.
5 ac = (5 × 4,046.856422) = 20,234.282112 sq m

Use an acreage calculator to find the area of a plot of land in acres by locating the boundaries on a map.

Acres and square meters are both units used to measure area. Learn more about area and find more area measurement conversion calculators. Acres are an imperial measurement and can be abbreviated as ac, for example 1 ac. Square meters are a metric measurement and can be abbreviated as sq m, for example 1 sq m. Learn more about the metric system, including the common unit prefixes and how to convert between metric units.

acres and square meters are units used to measure area
Convert Square Meters to Acres

Acre Measurements and Equivalent Square Meter Conversions

Common acre values converted to the equivalent square meter value
Acres Square Meters
1 ac 4,047 sq m
2 ac 8,094 sq m
3 ac 12,141 sq m
4 ac 16,187 sq m
5 ac 20,234 sq m
6 ac 24,281 sq m
7 ac 28,328 sq m
8 ac 32,375 sq m
9 ac 36,422 sq m
10 ac 40,469 sq m
11 ac 44,515 sq m
12 ac 48,562 sq m
13 ac 52,609 sq m
14 ac 56,656 sq m
15 ac 60,703 sq m
16 ac 64,750 sq m
17 ac 68,797 sq m
18 ac 72,843 sq m
19 ac 76,890 sq m
20 ac 80,937 sq m
21 ac 84,984 sq m
22 ac 89,031 sq m
23 ac 93,078 sq m
24 ac 97,125 sq m
25 ac 101,171 sq m
26 ac 105,218 sq m
27 ac 109,265 sq m
28 ac 113,312 sq m
29 ac 117,359 sq m
30 ac 121,406 sq m
31 ac 125,453 sq m
32 ac 129,499 sq m
33 ac 133,546 sq m
34 ac 137,593 sq m
35 ac 141,640 sq m
36 ac 145,687 sq m
37 ac 149,734 sq m
38 ac 153,781 sq m
39 ac 157,827 sq m
40 ac 161,874 sq m

More Acre Area Conversions

US Customary
Convert to Square Miles
1 ac is equal to 0.001563 square miles
Convert to Square Yards
1 ac is equal to 4,840 square yards
Convert to Square Feet
1 ac is equal to 43,560 square feet
Convert to Square Inches
1 ac is equal to 6,272,640 square inches
SI Units
Convert to Square Kilometers
1 ac is equal to 0.004047 square kilometers
Convert to Square Centimeters
1 ac is equal to 40,468,564.2 square centimeters
Convert to Square Millimeters
1 ac is equal to 4,046,856,422.4 square millimeters
Other Metric Units
Convert to Hectares
1 ac is equal to 0.404686 hectares
Convert to Ares
1 ac is equal to 40.468564 ares

Unit of Measurement Conversion Made Easy!

There are thousands of units of measure in use across the globe, and converting from one to another can be very difficult since each conversion requires a different formula to derive the result. Our unit of measurement conversion tools are meant to be dead easy. We break the mold of the typical dry and complicated experience. In addition to converting from one measurement to another, we provide the formula so you can see how the conversion is done, use it on you’re own calculator if you need to!

Convert units of length, weight, volume, and area between imperial and metric measures

Understanding the Metric System

The metric system makes it relatively easy to convert from one metric unit to another metric unit. The metric system uses a base unit, think meters or grams, and a prefix such as kilo or milli. The prefixes differ from the base units by differing powers of 10. So to convert within the metric system it’s usually a matter of multiplying or dividing by one of the powers of 10.

Here is a list of some of the common metric prefixes:

  • “kilo” – 1,000x larger
  • “hecto” – 100x larger
  • “deca” – 10x larger
  • “deci” – 10x smaller
  • “centi” – 100x smaller
  • “milli” – 1,000x smaller

There is a helpful mnemonic for remembering the prefixes: “King Henry Died Until Drinking Chocolate Milk.”
The u in Until refers to the base unit.