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Area Converter

Acre to Hectare Converter

Convert Acre (ac) to Hectare (ha) instantly with our interactive tool, benchmark tables, and detailed unit information.

1 ac = 0.4047 ha
Editable
ac
Input
Auto-Calculated
ha
Result
Area conversion — instant results

Convert Acre to Hectare

1 ac = 0.4047 ha
Acre (ac) Hectare (ha)
1 ac 0.404686 ha
5 ac 2.023428 ha
10 ac 4.046856 ha
25 ac 10.117141 ha
50 ac 20.234282 ha
100 ac 40.468564 ha
500 ac 202.342821 ha
1,000 ac 404.685642 ha

Convert Hectare to Acre

1 ha = 2.4711 ac
Hectare (ha) Acre (ac)
1 ha 2.471054 ac
5 ha 12.355269 ac
10 ha 24.710538 ac
25 ha 61.776345 ac
50 ha 123.552691 ac
100 ha 247.105381 ac
500 ha 1,235.526907 ac
1,000 ha 2,471.053815 ac

About Acre and Hectare

Detailed information about both units of measurement.

IMPERIAL UNIT

Acre

ac
Definition
A US customary unit of land area equal to 43,560 square feet. Used primarily in US real estate.
SI / Standard Information
Defined relative to m²: 1 ac = 4,046.856422 m². Historically defined as the area a team of oxen could plow in one day.
Approximate Comparison
An acre is about 90% of a football field or roughly the size of a city block.
Practical Applications
  • US real estate and land sales
  • Agricultural land measurement
  • Subdivision and zoning
  • Property tax assessment
Real-World Examples
  • A football field is about 1.32 acres
  • The average US home lot is about 0.2-0.5 acres
  • A Walmart Supercenter sits on about 15-20 acres
METRIC UNIT

Hectare

ha
Definition
A metric unit of land area equal to 10,000 square meters (100m × 100m).
SI / Standard Information
SI-accepted unit (ha). The prefix 'hecto-' means 100. One hectare = 100 ares = 10,000 m². Standard unit for land measurement worldwide.
Approximate Comparison
A hectare is about 2.47 acres or roughly the size of a sports field complex.
Practical Applications
  • Agricultural land measurement
  • Forestry and conservation areas
  • Real estate development
  • Sports field dimensions
Real-World Examples
  • A football field is about 0.5 hectares
  • A typical farm in the US is about 180 hectares
  • Central Park in NYC is 341 hectares

About Converting Acre to Hectare

Our Acre to Hectare converter provides instant, accurate conversion between these two essential area units. Whether you are working in engineering, construction, education, or everyday area measurement, this tool delivers precise results with zero friction.

The Acre (ac) is a imperial unit of area. A US customary unit of land area equal to 43,560 square feet. Used primarily in US real estate. An acre is about 90% of a football field or roughly the size of a city block.

The Hectare (ha) is a metric unit of area. A metric unit of land area equal to 10,000 square meters (100m × 100m). A hectare is about 2.47 acres or roughly the size of a sports field complex.

Conversion Formula & Worked Examples

The conversion between ac and ha uses the following mathematical relationship:

Hectare = Acre × 0.404686

Acre = Hectare × 2.471054

Whether you need to convert for us real estate and land sales or agricultural land measurement, our interactive converter provides instant, accurate results.

Example

1 ac

=

0.4047 ha

Example

5 ac

=

2.0234 ha

Example

10 ac

=

4.0469 ha

Reverse Direction

Need to convert Hectare back into Acre?

Switch conversion direction to view Hectare → Acre tables, benchmarks, and detailed info.

Open Hectare → Acre

Practical Use Cases & Applications

ac Acre

  • US real estate and land sales
  • Agricultural land measurement
  • Subdivision and zoning
  • Property tax assessment

ha Hectare

  • Agricultural land measurement
  • Forestry and conservation areas
  • Real estate development
  • Sports field dimensions

Frequently Asked Questions

Common questions about this conversion and related measurement topics.

How do I convert Acre to Hectare?
To convert Acre (ac) to Hectare (ha), multiply the acre value by the conversion factor. Our converter below handles this instantly — just enter the value in ac and the ha result appears in real time.
How many Hectares are in one acre?
One acre (ac) equals approximately 0.404686 hectare (ha). This conversion factor is constant and can be used for any acre value.
What is the formula to convert ac to ha?
The conversion formula is: <strong>Hectare = Acre × 0.404686</strong>. For example, 5 ac × 0.4047 = 2.0234 ha, and 10 ac × 0.4047 = 4.0469 ha.
Can I convert Hectare back to Acre?
Yes! Use the reverse direction on our converter, or visit our dedicated <a href="/area/hectares-to-acres/" class="text-accent-teal underline">Hectare to Acre converter</a>. The reverse conversion factor is approximately 1 ha = 2.471054 ac.
Where is Acre commonly used?
US real estate and land sales, Agricultural land measurement, Subdivision and zoning. A US customary unit of land area equal to 43,560 square feet. Used primarily in US real estate.
What is the difference between Acre and Hectare?
Acre (ac) and Hectare (ha) are both units of area. Acre belongs to the imperial system, while Hectare belongs to the metric system. Understanding the conversion between them is essential for international work in area measurement.
What are some real-world examples of acres and hectares?
Acre: A football field is about 1.32 acres; The average US home lot is about 0.2-0.5 acres Hectare: A football field is about 0.5 hectares; A typical farm in the US is about 180 hectares

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About This Conversion ℹ

This Acre to Hectare converter provides accurate, real-time conversions between these two area units.

Both units are among the most commonly used area measurements — rated 8/10 and 8/10 in popularity.

Bookmark this page for quick access to the Acre → Hectare converter whenever you need precise unit conversion.

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