acres to hectares

This converter makes instant conversions from acres (ac) to hectares (ha). It also provides the conversion steps. To use the converter, please provide a value in the input field. The converter will begin making conversions as the values are being typed in.

How many hectares in an acre?

A hectare (ha) is a non-SI metric unit of area. It is equal to 10,000 square meters. An acre (ac) is a unit of area in the United States (US) customary systems of measurement as well as in the British imperial system. During the 1950s and 1960s, an acre was declared to be exactly 4046.8564224 square meters based on the international yard, which has its basis in the metric system. Based on the definitions, there are = 0.40468564224 hectares in an acre.

How to convert acres to hectares

Both hectares and acres are commonly used to describe the size of lands. Since there are exactly 0.40468564224 hectares in 1 acre, the acre to hectare conversion formula is:

ha = 0.40468564224 × ac

Thus, to convert from acres to square feet, multiply a value in acres by 0.40468564224. For example, convert a piece of land with size of 3 acres to hectares:

3 acre = 3 × 0.40468564224 ha = 1.214 ha