Hectares to acres

1 ha = 2.4710538 ac. Type a figure below, or scan the table for the usual values.

Area · base unit m²

Hectare → Acre

Type a number, a phrase like 11 stone to kg, or a compound like 5 ft 11 in.

22.239484ac

1 ha = 2.4710538 acac = ha × 2.4710538

Precision

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Common pairs in area.

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32 categories, 300 units. Bare words follow UK usage: pint, gallon, mpg and ton are imperial; US versions are named.

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Hectares to acres quick table

Hectare (ha)Acre (ac)
1 ha2.4710538 ac
2 ha4.9421076 ac
3 ha7.4131614 ac
4 ha9.8842153 ac
5 ha12.355269 ac
6 ha14.826323 ac
7 ha17.297377 ac
8 ha19.768431 ac
9 ha22.239484 ac
10 ha24.710538 ac
12 ha29.652646 ac
15 ha37.065807 ac
20 ha49.421076 ac
25 ha61.776345 ac
50 ha123.55269 ac
100 ha247.10538 ac

How to convert hectares to acres

Multiply the hectare figure by 2.4710538 to get acre. Going the other way, divide by 2.4710538, which is the same as multiplying by 0.40468564.

ac = ha × 2.4710538

Example: 9 ha is 22.239484 ac.

Going the other way? Acres to hectares

Questions

How many acre in a hectare?

1 ha is 2.4710538 ac. Multiply the hectare figure by 2.4710538 to get acre. Going the other way, divide by 2.4710538, which is the same as multiplying by 0.40468564.

What is 9 ha in ac?

9 ha is 22.239484 ac. Type any other figure into the converter above to see it instantly, and the full list under it shows the same amount in every unit of the area category.

Is hectares to acres a simple multiplication?

Yes. Multiply by 2.4710538. The factor comes from the units' legal definitions, so the result is exact to the precision shown.

Conversion guides

Formula, quick table and worked examples for the common ones.