Convert Acre to Square Meter

One ac equals 4,046.856422 m². This converter allows you to easily convert between Acre and Square Meter in real time.

Formula

ac × 4,046.856422 = m²

Example: 1 ac = 4,046.856422 m²

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 Square Meter?

The square meter is the SI derived unit of area, representing a square with sides of one meter. It is the universal standard for measuring floor area in buildings, apartments, and commercial spaces. Real estate listings worldwide specify property sizes in square meters. In construction and architecture, building codes define requirements in terms of square meters. One square meter is approximately the area covered by a standard interior door.