Online calculator to convert acres to hectares (ac to ha) with formulas, examples, and tables. Our conversions provide a quick and easy way to convert between Area units.
Conversion Calculator
Enter your value in the conversion calculator below.
Convert acres to hectares
TIP: If the result of your conversion is 0, try increasing the "Decimals".
Conversion Definitions
The following is a list of definitions relating to conversions between acres and hectares.
What is an acre (ac)?
An acre is a unit of area in both US Customary Units as well as the Imperial System. The symbol for acre is ac. There are 2.47105382 acres in a hectare.
What is a hectare (ha)?
A hectare is a unit of area in the Metric System. The symbol for hectare is ha. There are 0.404685642 hectares in an acre.
Conversion Formula
Let's take a closer look at the conversion formula so that you can do these conversions yourself with a calculator or with an old-fashioned pencil and paper.
The formula to convert from acres to hectares is:
hectares = acres x 0.404685642
Conversion Example
Next, let's look at an example showing the work and calculations that are involved in converting from acres to hectares (ac to ha).
Acres to Square Centimeter Conversion Example
Task: Convert 20 acres to hectares (show work) Formula: acres x 0.404685642 = hectares Calculations: 20 acres x 0.404685642 = 8.09371284 hectares Result: 20 acres is equal to 8.09371284 hectares
Conversion Table
For quick reference purposes, below is a conversion table that you can use to convert from acres to hectares.
Acres to Hectares Conversion Chart
acres (ac) | hectares (ha) |
---|---|
1 acres | 0.40468564 hectares |
2 acres | 0.80937128 hectares |
3 acres | 1.21405693 hectares |
4 acres | 1.61874257 hectares |
5 acres | 2.02342821 hectares |
6 acres | 2.42811385 hectares |
7 acres | 2.83279949 hectares |
8 acres | 3.23748514 hectares |
9 acres | 3.64217078 hectares |
10 acres | 4.04685642 hectares |
20 acres | 8.09371284 hectares |
30 acres | 12.14056926 hectares |
40 acres | 16.18742568 hectares |
50 acres | 20.2342821 hectares |
75 acres | 30.35142315 hectares |
100 acres | 40.4685642 hectares |
250 acres | 101.1714105 hectares |
500 acres | 202.342821 hectares |
750 acres | 303.5142315 hectares |
1,000 acres | 404.685642 hectares |
2,500 acres | 1,011.714105 hectares |
5,000 acres | 2,023.42821 hectares |
7,500 acres | 3,035.142315 hectares |
10,000 acres | 4,046.85642 hectares |
25,000 acres | 10,117.14105 hectares |
50,000 acres | 20,234.2821 hectares |
75,000 acres | 30,351.42315 hectares |
100,000 acres | 40,468.5642 hectares |
250,000 acres | 101,171.4105 hectares |
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