Updated · Built and checked by the PlinzoTools team, formulas tested against published sources
Convert square feet to acres, square yards, square meters, hectares, and more.
This tool converts a measured or calculated square footage -- a building footprint, a fenced yard, a survey figure -- into acres, the standard unit for describing land parcels on deeds and real estate listings. It also shows the same area in square yards, square meters, hectares, square miles, and square kilometers simultaneously.
Enter your area and select "Square Feet" (or any other supported unit) from the "From Unit" dropdown. Every result -- acres, square yards, square meters, hectares, square miles, square kilometers -- updates instantly as you type, calculated together from the same input.
Acres = Square Feet ÷ 43,560
This divides by the exact number of square feet in one acre. Because 43,560 is a fixed, exact definition (not a rounded approximation), the result is mathematically precise -- only the display may be rounded for readability.
| Square Feet | Acres | Square Yards | Square Meters |
|---|---|---|---|
| 5,000 | 0.1148 | 555.6 | 464.5 |
| 10,000 | 0.2296 | 1,111.1 | 929.0 |
| 21,780 | 0.5000 | 2,420.0 | 2,023.4 |
| 43,560 | 1.0000 | 4,840.0 | 4,046.9 |
| 100,000 | 2.2957 | 11,111.1 | 9,290.3 |
Homeowners and buyers use this to translate a square-footage figure from a floor plan, survey, or MLS listing into acreage for comparing lots. Landscapers estimating a large property's acreage from a measured footprint use it before ordering bulk materials -- see the Mulch Calculator or Topsoil Calculator for turning that area into material quantities.
This converts a known area figure -- it doesn't calculate area from raw boundary dimensions. If you only have a lot's length and width, multiply them first (or use the Square Footage Calculator, which also handles L-shaped and circular footprints).
Suppose you measured a rectangular pasture at 250 feet by 260 feet. Multiply them to get 65,000 square feet, enter that number, and the acre result shows about 1.49 acres (65,000 divided by 43,560 is 1.4922). The same grid shows roughly 7,222 square yards and about 0.60 hectares. If a neighbor's parcel is listed at 1.5 acres, you can see at a glance that the two are very close in size. Numbers here are hypothetical, so use your own measurements.
The result can only be as good as the square footage you enter. Consider where it came from and how reliable it is before relying on the acreage.
Small areas produce tiny acre values, like 0.0344 for a 1,500 square foot house footprint. That is expected, and it is a reminder that an acre is a large unit. For anything below about a fifth of an acre, square feet are usually easier to work with. For very large parcels, the square mile and square kilometer results in the grid may be more meaningful. Rounded display values are for readability, so if you need a figure for a legal or financial purpose, use the recorded deed or a licensed survey rather than a rounded conversion.
10,000 ÷ 43,560 = approximately 0.2296 acres.
Yes -- 43,560 sqft per acre is a fixed, exact definition, so the underlying calculation is mathematically precise regardless of how the displayed result is rounded.
They're the same conversion engine and unit list, just defaulted to start from the opposite unit -- both pages let you switch the "From Unit" dropdown to convert in either direction.
About 0.1148 acres. It is roughly one eighth of an acre, so it is a small residential lot.
Divide it into rectangles and triangles, calculate each area in square feet, add them together, and enter the total.
No. Use it for planning and comparison only. Legal descriptions and boundaries come from recorded deeds and licensed surveys.
Multiplying a square feet value by 0.00002296 gives you acres. The reverse conversion divides by 0.00002296, which is the same as multiplying by 43,560. For example, 12.5 square feet × 0.00002296 = 0.00028696 acres, and 150 square feet × 0.00002296 = 0.00344353 acres.
One square foot equals exactly 144 square inches, or about 0.0929 square meters. One acre equals exactly 43,560 square feet, historically the area one ox could plow in a day.
| Square Feet | Acres |
|---|---|
| 1 | 0.00002296 |
| 2 | 0.00004591 |
| 3 | 0.00006887 |
| 5 | 0.00011478 |
| 10 | 0.00022957 |
| 15 | 0.00034435 |
| 20 | 0.00045914 |
| 25 | 0.00057392 |
| 50 | 0.00114784 |
| 75 | 0.00172176 |
| 100 | 0.00229568 |
| 250 | 0.00573921 |
| 500 | 0.01147842 |
| 1,000 | 0.02295684 |
How many acres are in 1 square feet?
1 square feet equals 0.00002296 acres.
How many square feet are in 1 acres?
1 acres equals 43,560 square feet.
What is 3.5 square feet in acres?
3.5 square feet equals 0.00008035 acres, using the same 0.00002296 factor as the rest of this chart.
Is this conversion exact or approximate?
The 0.00002296 factor comes from a fixed, exact definitional constant, so the underlying math is exact; the numbers on this page are rounded to seven significant digits for readability, and the calculator above keeps the full-precision value.
Values are rounded to seven significant digits for display; the converter above uses the full-precision factor.
Reference: NIST Weights and Measures