How do I convert Hectares to Acres?

Multiply the hectares by 2.471053815. For example, 5 ha = 5 x 2.471053815 = 12.3553 ac.

How many acres are in one hectare?

There are about 2.4711 acres in one hectare (1 ha = 2.471053815 ac).

How do I convert acres back to hectares?

Divide the acres by 2.471053815, or multiply by 0.404686. For example, 10 ac = 10 / 2.471053815 = 4.0469 ha. This converter does both directions at once.

What is the difference between a hectare and an acre?

A hectare is a metric unit equal to 10,000 square metres (a 100 m x 100 m square). An acre is an imperial unit equal to 4,046.86 square metres. A hectare is roughly two and a half acres.

Where is each unit used?

The hectare is the standard for land area across most of the world and in agriculture and forestry. The acre is still common in the United States, the United Kingdom, and a few other countries for farmland and property.

What is the conversion formula for ha to ac?

The exact factor is 1 ha = 2.471053815 ac, derived from 1 hectare = 10,000 m squared divided by 4,046.8564224 m squared per acre.

Hectares to Acres Converter

This free area converter turns hectares (ha) into acres (ac) and back again. A hectare is a metric unit of area — a square 100 m on each side, or 10,000 square metres — while an acre is the imperial unit equal to 4,046.86 square metres. Because the hectare is larger, every hectare is about two and a half acres. The tool is handy for reading farm listings, planning permission documents, and international property where the two units are mixed.

How it works

The converter multiplies your hectares value by the exact factor 2.471053815 to get acres (and divides by the same factor going the other way). That factor comes directly from the definitions: one hectare is 10,000 m², and one acre is 4,046.8564224 m², so 10,000 / 4,046.8564224 = 2.471053815. Type a value in either field and the opposite field updates in real time.

Example

To convert 8 hectares to acres:

8 × 2.471053815 = 19.7684 acres

Going the other way, 50 acres is 50 / 2.471053815 = 20.234 hectares.

Hectares (ha)	Acres (ac)
1 ha	2.4711 ac
10 ha	24.7105 ac
100 ha	247.1054 ac
1000 ha	2471.05 ac

All calculations run entirely in your browser with no data sent to any server.