Convert agricultural and land area units

Farmers, landowners, and estate agents measure land in a mix of units depending on the country and tradition. This converter switches between the metric standards (square metres, ares, hectares) and the imperial land units common in the US and UK (acres, roods, square yards, square miles), so you can compare plot sizes from any source.

Common land area conversions

From	To	Result
1 acre	hectares	0.4047 ha
1 hectare	acres	2.471 acres
1 acre	square metres	4,047 m²
1 rood	square metres	1,012 m²

Understanding acres, roods and hectares

An acre was historically the area a yoke of oxen could plough in a day, and it equals 4 roods or 4,840 square yards. A hectare is the metric standard for land, equal to 10,000 square metres or about 2.47 acres. An are is one hundredth of a hectare (100 m²), still used in some European countries.

Frequently asked questions

How many acres in a hectare?

One hectare equals about 2.471 acres. One acre is about 0.405 hectares.