Area converter
Square foot to Acre Converter
Convert ft² to ac or reverse with one click. Type a value below for an instant result.
Square foot ft²
Acre ac
ft² → ac · runs in your browser, no server
How to convert square foot to acre
Square foot (ft²) and Acre (ac) both measure area. Whether you are studying, traveling, cooking, or working on a project, converting between them should be fast and accurate.
Looking for the opposite direction? See our dedicated acre to square foot converter — same formula reversed, with content written for that direction.
The standard relationship used on this page means that 1 square foot equals 0.000022 ac. Enter any number in the calculator — use the swap button to reverse the direction without leaving the page.
Converting 1000 ft² gives 0.022956 ac. This is a practical reference when switching between square foot and acre for real estate listings, land surveys, agriculture, and floor plans.
Need acre to square foot instead? Try our Acre to Square foot converter. acre → sqft
ft² to ac conversion table
| ft² | ac |
|---|---|
| 1 | 0.000022 |
| 5 | 0.000114 |
| 10 | 0.000229 |
| 25 | 0.000573 |
| 50 | 0.001147 |
| 100 | 0.002295 |
| 500 | 0.011478 |
ac to ft² conversion table
Or click the swap button in the converter to switch from ac to ft².
| ac | ft² |
|---|---|
| 1 | 43560.05726 |
| 5 | 217800.2863 |
| 10 | 435600.5726 |
| 25 | 1089001.432 |
| 50 | 2178002.863 |
| 100 | 4356005.726 |
| 1000 | 43560057.26 |
Frequently asked questions
How many acres are in 1 square foot? +
One square foot equals 0.000022 ac. Use the converter above for any value — results are calculated locally with full precision.
How do I convert ft² to ac? +
Use the formula: ac = ft² × 0.000022. Enter your value in the calculator and the result appears instantly. Click the swap button to convert ac back to ft².
How many square foots are in 1 acre? +
One acre equals 43560.05726 ft². Swap the converter direction to work backwards from ac to ft².
What is 10 ft² in ac? +
10 ft² is 0.000229 ac. See the conversion table on this page for more common values.
When would I convert square foot to acre? +
This conversion is useful for real estate listings, land surveys, agriculture, and floor plans. ConvertHub runs entirely in your browser — no data is uploaded to any server.
Is square foot to acre the same as acre to square foot? +
They are inverse operations. This page focuses on ft² → ac with examples and tables for that direction. For ac → ft², use our separate acre to square foot converter page.