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Hectares to Acres

Type a value in Hectares or Acres; the other field updates as you type.

Runs in your browser No sign-up

Swap units

5 ha = 12.355269 ac

Decimals

Common values

Hectares (ha)Acres (ac)
1 ha2.471054 ac
2 ha4.942108 ac
3 ha7.413161 ac
4 ha9.884215 ac
5 ha12.355269 ac
7.5 ha18.532904 ac
10 ha24.710538 ac
20 ha49.421076 ac
30 ha74.131614 ac
40 ha98.842153 ac
50 ha123.552691 ac
75 ha185.329036 ac
100 ha247.105381 ac

How to use it

  1. Type the number of Hectares in the first field.
  2. Read the result in Acres. You can also type in the Acres field to convert the other way.
  3. Use the table of common values, or copy the result with one click.

How it works

Formula: ac = ha × 2.4710538

1 ha = 2.471054 ac, and 1 ac = 0.404686 ha.

Results use the exact definitions of both units. The page shows up to 6 decimal places; copy the value for full precision.

Examples

1 ha in ac

1 ha = 2.471054 ac, using ac = ha × 2.4710538.

5 ha in ac

5 ha = 12.355269 ac, using ac = ha × 2.4710538.

10 ha in ac

10 ha = 24.710538 ac, using ac = ha × 2.4710538.

Frequently asked questions

How do I convert Hectares to Acres?

Use the formula ac = ha × 2.4710538. For example, 1 ha = 2.471054 ac.

How do I convert Acres back to Hectares?

Use the reverse formula ha = ac × 0.40468564. For example, 1 ac = 0.404686 ha.

How accurate is this converter?

It uses the exact legal definitions of the units, so the only rounding is in the number of decimals shown. Copy the result to get the full value.

Privacy

The conversion runs entirely in your browser. Nothing you type is sent anywhere.