Acre to Square meter Converter
1 ac = 4,046.856422 m² — convert instantly with formula and table.
Type a value above and it converts instantly — no button to press, no page reload, and the math runs entirely in your browser.
Quick answer: one acre equals 4,046.86 square meters. So to convert acres to square meters, multiply by 4,046.8564224.
How to convert acres to square meters
square meters = acres × 4,046.8564224
The acre — historically the area a yoke of oxen could plow in one day — equals 43,560 square feet and remains the standard US unit for land parcels.
The square meter is the SI unit of area and the global standard for apartment and house sizes outside North America.
Acre to Square meter conversion table
| Acre (ac) | Square meter (m²) |
|---|---|
| 0.01 ac | 40.4686 m² |
| 0.1 ac | 404.6856 m² |
| 0.25 ac | 1,011.71 m² |
| 0.4 ac | 1,618.74 m² |
| 0.75 ac | 3,035.14 m² |
| 1.25 ac | 5,058.57 m² |
| 1.75 ac | 7,082 m² |
| 2.5 ac | 10,117.14 m² |
| 3.5 ac | 14,164 m² |
| 4.5 ac | 18,210.85 m² |
| 6 ac | 24,281.14 m² |
| 8 ac | 32,374.85 m² |
| 10 ac | 40,468.56 m² |
| 12 ac | 48,562.28 m² |
| 14 ac | 56,655.99 m² |
| 16 ac | 64,749.7 m² |
| 18 ac | 72,843.42 m² |
| 20 ac | 80,937.13 m² |
| 24 ac | 97,124.55 m² |
| 26 ac | 105,218.27 m² |
| 30 ac | 121,405.69 m² |
| 35 ac | 141,639.97 m² |
| 45 ac | 182,108.54 m² |
| 55 ac | 222,577.1 m² |
| 65 ac | 263,045.67 m² |
| 75 ac | 303,514.23 m² |
| 85 ac | 343,982.8 m² |
| 95 ac | 384,451.36 m² |
| 110 ac | 445,154.21 m² |
| 125 ac | 505,857.05 m² |
| 175 ac | 708,199.87 m² |
| 250 ac | 1,011,714.11 m² |
| 350 ac | 1,416,399.75 m² |
| 450 ac | 1,821,085.39 m² |
| 600 ac | 2,428,113.85 m² |
| 750 ac | 3,035,142.32 m² |
| 900 ac | 3,642,170.78 m² |
| 1,500 ac | 6,070,284.63 m² |
| 2,500 ac | 10,117,141.06 m² |
| 10,000 ac | 40,468,564.22 m² |
Need the opposite direction? Use the Square meter to Acre converter, or read our complete guide to area conversions for every formula in one place.
Frequently asked questions
How many square meters are in one acre?
One acre equals 4,046.86 square meters. Multiply any acre value by 4,046.8564224 to get square meters.
What is 10 acres in square meters?
10 acres equal 40,468.56 square meters (10 × 4,046.856422).
Is the acre to square meter conversion exact?
The conversion factor used here (4,046.8564224) is based on the internationally agreed definitions of both units, so results are exact up to rounding of the final decimal places.
Is my data stored when I use this converter?
No. The conversion runs entirely in your browser with JavaScript — nothing you type is sent to a server, logged or stored.