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Acres to Hectares Converter

1 ac = 0.4046856422 ha. Type any value to convert acres to hectares.

1 ac = 0.4046856422 ha

Formula: ha = ac × 0.4046856422

Common values
Decimals
In every unit 12 units
Square millimeter (mm²) 4,046,856,422 mm²
Square centimeter (cm²) 40,468,564.22 cm²
Square meter (m²) 4,046.856422 m²
Are (a) 40.46856422 a
Dunam (dunam) 4.046856422 dunam
Hectare (ha) 0.4046856422 ha
Square kilometer (km²) 0.004046856422 km²
Square inch (in²) 6,272,640 in²
Square foot (ft²) 43,560 ft²
Square yard (yd²) 4,840 yd²
Acre (ac) 1 ac
Square mile (mi²) 0.0015625 mi²

Convert on our server?

If you continue, the file is uploaded over an encrypted connection and converted on our server. You can keep using the site meanwhile. The original is deleted as soon as it is converted; the result is kept for 6 hours so you can download it, and you can delete it at any time. Files are never shared or used for anything else.

Calculated in your browser – nothing you type is sent anywhere. Privacy details

Acres to hectares table

Formula: ha = ac × 0.4046856422

Acre (ac)Hectare (ha)
0.1 ac0.04046856422 ha
0.25 ac0.1011714106 ha
0.5 ac0.2023428211 ha
1 ac0.4046856422 ha
2 ac0.8093712845 ha
3 ac1.214056927 ha
4 ac1.618742569 ha
5 ac2.023428211 ha
6 ac2.428113853 ha
7 ac2.832799496 ha
8 ac3.237485138 ha
9 ac3.64217078 ha
10 ac4.046856422 ha
12 ac4.856227707 ha
15 ac6.070284634 ha
20 ac8.093712845 ha
25 ac10.11714106 ha
30 ac12.14056927 ha
40 ac16.18742569 ha
50 ac20.23428211 ha
60 ac24.28113853 ha
75 ac30.35142317 ha
100 ac40.46856422 ha
150 ac60.70284634 ha
200 ac80.93712845 ha
250 ac101.1714106 ha
500 ac202.3428211 ha
1,000 ac404.6856422 ha

How to use: Acres to Hectares

  1. 1 Type the value in acres.
  2. 2 The result in hectares appears at once – or type in the hectares field to convert back.
  3. 3 Pick a common value, round to fewer decimals or swap the units with one click.
  4. 4 Copy the result, or open “In every unit” to see the value in all units of area.

About this tool

Acre (ac) is a unit of area (imperial and US customary); 1 ac = 4,046.856422 m². Hectare (ha) is a unit of area (metric, accepted for use with the SI); 1 ha = 10,000 m².

To convert acres to hectares, multiply the value by 0.4046856422 (ha = ac × 0.4046856422). Example: 50 ac = 20.23428211 ha.

Calculated in your browser – nothing you type is sent anywhere.

Frequently asked questions

How do I convert acres to hectares?

To convert acres to hectares, multiply the value by 0.4046856422: ha = ac × 0.4046856422. For example 50 ac = 20.23428211 ha.

What is 1 ac in hectares?

1 ac = 0.4046856422 ha. The other way round, 1 ha = 2.471053815 ac.

How exact is the result?

The converter uses the official definitions of both units and shows up to 10 significant digits; choose 0–6 decimals to round. Both units are defined exactly in terms of each other, so the factor itself is exact.

Can I convert other units of area here?

Yes – choose any of the 12 units of area in the From and To lists, or switch to another measurement at the top.

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