Hectares to Acres (ha to ac) Online Converter

This online converter allows you to quickly and accurately convert hectares (ha) to acres (ac) and vice versa. It is ideal for anyone working in agriculture, real estate, or land management who needs to convert land area measurements between the metric and imperial systems. The tool is straightforward and works both ways, making it easy to switch between hectares and acres.

Hectares to Acres Converter

This converter automatically converts between hectares (ha) and acres (ac) both ways.

Hectares (ha): Acres (ac):

Decimal Places (0 to 10):

How to Use the Calculator

To use the converter, simply enter the value in hectares (ha) into the input field. The corresponding value in acres (ac) will be automatically calculated and displayed. If you need to convert from acres to hectares, enter the value in acres, and the tool will calculate the equivalent in hectares.

Formula Used

The conversion formula from hectares to acres is:

Acres (ac) = Hectares (ha) × 2.47105

For reverse conversion, divide the acres by 2.47105 to get the value in hectares.

Precalculated Values

Here are some commonly converted real-world values:

1 ha = 2.4711 ac (Average size of a football field)
5 ha = 12.3553 ac (Small farm)
10 ha = 24.7105 ac (Medium-sized farm)
20 ha = 49.4211 ac (Large farm or estate)
50 ha = 123.5527 ac (Very large estate)
100 ha = 247.1054 ac (Commercial farm or ranch)
500 ha = 1235.527 ac (Extensive agricultural land)

History and Interesting Facts

Hectares and acres are both units of area measurement. The hectare, a metric unit, is commonly used worldwide, particularly in agriculture and land planning. The acre, an imperial unit, is used mainly in the United States, the United Kingdom, and a few other countries. Historically, an acre was defined as the amount of land that could be plowed in one day by a team of oxen. The hectare, being part of the metric system, is a newer and more standardized unit of measurement.