Hectares to acres (ha to ac)

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1 ha = 2.47105 ac. Type any value below to convert hectares to acres instantly.

1 unit

1 ha = 2.47105 ac

Formula: ac = ha × 2.47105381

About ha to ac

One hectare is 10,000 m², about 2.47 acres — useful for land listings and farm sizes.

To convert, multiply the value in hectares by 2.47105381. For example, 20 ha = 49.4211 ac.

Hectares: 10,000 square meters (100 m × 100 m). Acres: 43,560 square feet, about 4,046.86 m².

Hectares to acres conversion table

Formula: ac = ha × 2.47105381

HectaresAcres
0.1 ha0.247105 ac
0.5 ha1.23553 ac
1 ha2.47105 ac
2 ha4.94211 ac
5 ha12.3553 ac
10 ha24.7105 ac
20 ha49.4211 ac
50 ha123.553 ac
100 ha247.105 ac
200 ha494.211 ac
500 ha1,235.53 ac
1,000 ha2,471.05 ac
10,000 ha24,710.5 ac

Values rounded to 6 significant figures.

How to do it

  1. 1

    Type a value in hectares in the converter above (it is preset to ha → ac).

  2. 2

    Read the result instantly; tap Swap units to convert the other way.

  3. 3

    Use the table for common values or the formula ac = ha × 2.47105381 to convert by hand.

Frequently Asked Questions

How many acres are in one hectare?

1 ha = 2.47105 ac.

How do I convert hectares to acres?

Use ac = ha × 2.47105381. For example, 20 ha = 49.4211 ac.

Is the converter accurate?

It uses the exact international definitions of each unit and shows up to six significant figures.

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