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Convert square foot to acre

1 ft² = 0.00002295684114 ac

1 ft² = 0.000023 ac
1 ft² in every area unit
square millimeter92,900 mm²
square centimeter929 cm²
square meter0.0929 m²
hectare0.00000929 ha
square kilometer9.29e-08 km²
square inch144 in²
square foot1 ft²
square yard0.111 yd²
acre0.000023 ac
square mile3.59e-08 mi²
How the conversion works

Multiply by 0.00002295684114 to go from square foot to acre, or divide by it to go back. Every conversion on this site routes through the SI value (m²) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.

Going the other way? acre to square foot — 1 ac = 43,560 ft².

square foot to acre — common values
1 ft²0.000022956841 ac
2 ft²0.000045913682 ac
3 ft²0.000068870523 ac
5 ft²0.00011478421 ac
10 ft²0.00022956841 ac
15 ft²0.00034435262 ac
20 ft²0.00045913682 ac
25 ft²0.00057392103 ac
50 ft²0.0011478421 ac
75 ft²0.0017217631 ac
100 ft²0.0022956841 ac
250 ft²0.0057392103 ac
500 ft²0.011478421 ac
1000 ft²0.022956841 ac
Other area conversions
mm² → accm² → acm² → ackm² → acin² → acft² → mm²ft² → cm²ft² → m²

All area units →

Solvers that use area