OGML / Free working tool
Area unit converter
Convert an actual measured area, not an abstract number or a survey name. This uses international-foot area units. Historical U.S. survey-foot measurements use a different factor and need their original basis. One square foot is 1/43,560 acre; one square mile is 640 acres.
NIST: area unit conversion factors.
Your inputs
Area amount × selected acres-per-unit factor = acres
Inputs and results remain on the current page. No account, upload or email is required to use or print this tool. A worksheet does not provide a title or legal opinion.
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