Acres to Hectares Converter (ac to ha)

Quickly convert acres to hectares (ac to ha) with high precision. Whether evaluating US farmland for international buyers or translating US acreage into metric surveying data, use our interactive tool below.

AC to HA Converter

Value

From

To

Result

—

How to Convert Acres to Hectares

To convert from ac to ha, apply the standard conversion formula:

Formula: hectares = acres * 0.404686

For example, to convert 10 ac:

10 ac = 4.04686 ha

Acres to Hectares Reference Table

AC	HA
1 ac	0.4047 ha
2 ac	0.8094 ha
5 ac	2.0234 ha
10 ac	4.0469 ha
20 ac	8.0937 ha
50 ac	20.2343 ha
100 ac	40.4686 ha
250 ac	101.1714 ha
500 ac	202.3428 ha
1,000 ac	404.6856 ha

Practical Applications & Land Measurement Uses

Converting acres to hectares is routinely required for international agribusiness transactions, climate compliance, global biodiversity reporting, and foreign real estate investments requiring metric documentation.

Frequently Asked Questions

How do you convert acres to hectares?

Multiply the number of acres by 0.404686 (or divide by 2.47105). For example, 10 acres * 0.404686 = 4.04686 hectares.

What is 100 acres in hectares?

100 acres equals approximately 40.47 hectares.

Related Area Converters

• Hectares to Acres Converter (ha to ac)
• All Area Converters (Topic Hub)
• Acres to Square Meters Converter (ac to m²)
• Square Meters to Hectares Converter (m² to ha)
• Acres to Square Feet Converter (ac to sq ft)
• Square Feet to Acres Converter (sq ft to ac)