Convert Acre (US Survey) (ac (US)) to Are (a) instantly.
Acre (US Survey) to Are conversion
1 Acre (US Survey) (ac (US)) = 40.468726 Are (a). To convert Acre (US Survey) to Are, multiply the value by 40.468726.
| Acre (US Survey) (ac (US)) | Are (a) |
|---|---|
| 1 | 40.468726 |
| 2 | 80.937452 |
| 5 | 202.34363 |
| 10 | 404.68726 |
| 25 | 1011.7182 |
| 50 | 2023.4363 |
| 100 | 4046.8726 |
| 1000 | 40468.726 |
Frequently asked questions
How many Are are in one Acre (US Survey)?
One Acre (US Survey) (ac (US)) equals 40.468726 Are (a).
How do I convert Acre (US Survey) to Are?
To convert Acre (US Survey) to Are, multiply the value by 40.468726.
What is 10 Acre (US Survey) in Are?
10 Acre (US Survey) = 404.68726 Are.
About these units
Acre (US Survey) (ac (US))
The US survey acre is based on the US survey foot, making it slightly different from the international acre. With a value of 43,560 survey-square feet, it appears extensively in historical property records and federal land surveys. Because millions of acres in the United States were mapped using PLSS, the survey acre remains necessary for interpreting legal land rights, even though modern mapping often uses metric units or the international foot. This specialized acre illustrates how subtle unit differences can survive for centuries due to legal and administrative inertia.
Are (a)
An are is a metric land unit equal to 100 m², originally invented during the development of the metric system but now largely overshadowed by the hectare (100 ares). Although rarely used independently in modern measurement, the are survives in real estate transactions in parts of Europe, where small land parcels—such as garden plots or rural homesteads—may be expressed in ares. It remains important historically, as it served as a transitional unit bridging the earliest metric innovations with modern large-scale land measurement practices.