Acres (ac) to Hectares (ha) Converter

Acres to Hectares (ac to ha) Converter

Use our free Acres to Hectares converter to change any value from ac to ha instantly and accurately. 1 acre equals 0.4046856422 hectares, and 1 hectare equals 2.471053815 acres. Enter a number, choose the precision and get the result in one click.

Acre to Hectare formula

To convert acres to hectares, divide the number of acres by 2.471053815:

ha = ac × 0.4046856422

Example: 25 ac × 0.4046856422 = 10.11714106 ha.

Acres to Hectares conversion table

Acre and Hectare explained

Acre (ac): An acre equals 43,560 square feet (about 4,047 m²). It is used for farmland and real estate.

Hectare (ha): A hectare equals 10,000 square meters. It is the standard unit for farmland and forests in most countries.

How to use the Acre to Hectare converter

1. Enter the value in acres (ac).
2. Choose the number of decimal places (precision).
3. Click Submit to convert.
4. Read or copy the result in hectares (ha).

Common use cases

• Converting area measurements for work, school or travel
• Checking area values in product specifications
• Quickly comparing metric and imperial or binary and decimal values
• Double-checking manual calculations

Frequently asked questions

How many hectares are in 1 acre?

There are 0.4046856422 hectares in one acre.

How do I convert hectares back to acres?

Multiply by 2.471053815, or use our Hectare to Acre converter.

Is this converter accurate?

Yes. It uses the official international conversion factors and lets you choose the number of decimal places.

Related converters

• Hectares to Acres
• Acres to Square meters
• Acres to Square kilometers
• Acres to Square feet
• Acres to Square miles
• Square meters to Hectares
• Square kilometers to Hectares