1 ac = 4046.86 m² (acre → square meter)
1 ac = 4046.86 m²
1 acre equals 4046.86 square meters. To convert acres to square meters, multiply the acre value by 4046.86. For quick reference: 1 ac = 4046.86 m², 5 ac = 20234.3 m², 10 ac = 40468.6 m², 100 ac = 404686 m².
Square meters = Acres × 4046.86Acres to square meters multiplies by 4,046.8564224 (exact, via the 66 × 660 ft definition and the 1959 foot). A 5-acre parcel is 20,234 m²; a quarter-acre lot is 1,012 m². Use the exact factor for legal descriptions and land registration; the mental shortcut of 4,000 m²/acre is fine for comparison shopping. Note the US survey acre differs by a few parts per million — irrelevant except in legacy US land-survey datasets.
Start with your value in acres.
Multiply the acre value by 4046.86. This is the exact conversion factor from acres to square meters.
The product is your value in square meters. For example, 5 ac × 4046.86 = 20234.3 m².
The exact factor from acres to square meters is 4046.86.
Square meters = Acres × 4046.86
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
| Acres (ac) | Square meters (m²) |
|---|---|
| 0.1 ac | 404.69 m² |
| 0.25 ac | 1011.7 m² |
| 0.5 ac | 2023.4 m² |
| 1 ac | 4046.9 m² |
| 2 ac | 8093.7 m² |
| 3 ac | 12141 m² |
| 4 ac | 16187 m² |
| 5 ac | 20234 m² |
| 6 ac | 24281 m² |
| 7 ac | 28328 m² |
| 8 ac | 32375 m² |
| 9 ac | 36422 m² |
| 10 ac | 40469 m² |
| 12 ac | 48562 m² |
| 15 ac | 60703 m² |
| 20 ac | 80937 m² |
| 25 ac | 101171 m² |
| 30 ac | 121406 m² |
| 40 ac | 161874 m² |
| 50 ac | 202343 m² |
| 60 ac | 242811 m² |
| 70 ac | 283280 m² |
| 75 ac | 303514 m² |
| 80 ac | 323749 m² |
| 90 ac | 364217 m² |
| 100 ac | 404686 m² |
| 120 ac | 485623 m² |
| 150 ac | 607028 m² |
| 200 ac | 809371 m² |
| 250 ac | 1011714 m² |
| 300 ac | 1214057 m² |
| 400 ac | 1618743 m² |
| 500 ac | 2023428 m² |
| 600 ac | 2428114 m² |
| 750 ac | 3035142 m² |
| 800 ac | 3237485 m² |
| 1000 ac | 4046856 m² |
| 1200 ac | 4856228 m² |
| 1500 ac | 6070285 m² |
| 2000 ac | 8093713 m² |
| 2500 ac | 10117141 m² |
| 3000 ac | 12140569 m² |
| 4000 ac | 16187426 m² |
| 5000 ac | 20234282 m² |
| 7500 ac | 30351423 m² |
| 10000 ac | 40468564 m² |
| 20000 ac | 80937128 m² |
| 50000 ac | 202342821 m² |
| 100000 ac | 404685642 m² |
| 1000000 ac | 4046856422 m² |
An American football field (with end zones) is about 1.32 acres. A quarter-acre lot is the classic US suburban plot size. In square meters, that gives you: 1 ac = 4046.86 m², 10 ac = 40468.6 m², 100 ac = 404686 m².
The acre is the traditional imperial unit for land, still the standard for US and UK property, farmland, and parkland. One acre is exactly 4,046.8564224 m² — historically the area a yoke of oxen could plough in a day, standardised as 1 chain by 1 furlong (66 × 660 feet, or 43,560 square feet). An American football field including end zones is about 1.32 acres.
The square meter is the SI unit of area — the area of a square one meter on each side. It's the standard for apartment and house listings in nearly every metric country, for material quantities (flooring, paint coverage), and for all scientific work. A typical parking space is about 12 m²; a singles tennis court is about 195 m².