Convert Acres to Square Meters

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

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

To convert a acre measurement to a square meter measurement, multiply the area by the conversion ratio. One acre is equal to 4,046.856422 square meters, so use this simple formula to convert:

square meters = acres × 4,046.856422

The area in square meters is equal to the acres multiplied 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

Acres and square meters are both units used to measure area. Keep reading to learn more about each unit of measure.


One acre is defined as the area equal to a space that is one chain (66 ft) by one furlong (660 ft), or 10 square chains. That's equal to 43,560 square feet for those unfamiliar with those units of measure.

The acre is a US customary and imperial unit of area. Acres can be abbreviated as ac, for example 1 acre can be written as 1 ac.

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

Square Meters

One square meter is equal to the area of a square with sides that are 1 meter in length.

The square meter, or square metre, is the SI derived unit for area in the metric system. A square meter is sometimes also referred to as a square m. Square meters can be abbreviated as sq m, and are also sometimes abbreviated as . For example, 1 square meter can be written as 1 sq m or 1 m².

Try our square meters calculator to calculate the area of a space.

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