Convert Acre to Are

One ac equals 40.46856422 a. This converter allows you to easily convert between Acre and Are in real time.

Formula

ac × 40.46856422 = a

Example: 1 ac = 40.46856422 a

What is Acre?

The acre is a unit of land area in the imperial and US customary systems, defined as exactly 4,046.8564224 square meters. Its origin is medieval English, where it represented the amount of land a yoke of oxen could plow in one day. In the United States, real estate, farmland, and ranches are commonly measured in acres. One acre is approximately 0.76 of an American football field (excluding end zones). There are 640 acres in a square mile.

What is Are?

The are is a unit of area equal to 100 square meters, or a square 10 meters on each side. It was introduced as part of the metric system during the French Revolution. While less commonly used today than the hectare (which equals 100 ares), the are still appears in land registration documents and real estate descriptions in some countries. In Japan and parts of Europe, small plots of land may be described in ares. The prefix "hect-" in hectare literally means one hundred ares.