Convert Square Foot to Acre
Converting from ft² to ac
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Information:
- The SI derived unit for area is the square meter (m²).
- 1 hectare (ha) = 10,000 square meters.
- 1 acre (ac) = 4046.8564224 square meters.
- 1 square mile (mi²) = 640 acres.
Conversion Details & Formula
Formula:
Result (ac) = Input Value (ft²) × 0.000023
The conversion factor is derived from SI base unit conversions: (0.092903 / 4046.8564224)
Unit Relationship:
- 1 ft² (Square Foot) = 0.000023 ac (Acre)
- 1 ac (Acre) = 43560 ft² (Square Foot)
Equivalence to SI Base Unit (m²):
- 1 ft² (Square Foot) = 0.092903 m²
- 1 ac (Acre) = 4046.8564224 m²