Tool
Acres to Hectares Converter
Convert acres to hectares for metric land area measurements.
Unit Converters
What this tool does
Convert land area from acres to hectares using the standard square-foot equivalence between US and metric units.
How to use
- Enter the number of acres.
- View the hectares result instantly.
- Use the reverse converter link for hectares to acres.
Formula
hectares = acres × (43,560 ÷ 107,639.104)
Examples
25 acres
Input: 25
Output: 10.117141
25 × (43,560 ÷ 107,639.104) ≈ 10.12 hectares.
Learn more
Acres in metric surveys
When a US parcel is measured in acres but you need metric reporting, hectares provide a clean square-meter-based unit.
One acre is approximately 0.4047 hectares using standard conversion factors.
Common use cases
- Convert US property listings to metric area
- Prepare international land reports
- Compare ranch sizes across countries
FAQ
How many hectares are in one acre?
One acre equals about 0.4047 hectares.
Can I enter decimal acre values?
Yes. Decimal acreage is supported.
Does this use US survey acres?
This tool uses the standard 43,560 square foot acre definition.
Source notes
- One acre = 43,560 square feet.
- One hectare = 107,639.104 square feet.
Explore related workflows
Reverse conversion
Related converters
Last reviewed: 2026-05-23