Acre to Hectare Converter
What is an Acre?
An acre is a United States customary and imperial unit of land area equal to 43,560 square feet (ft²), 4,840 square yards (yd²), or 4,046.8564224 square meters (m²). The acre is the standard land measurement unit in the United States and United Kingdom.
One acre equals 10 square chains in the historical English surveying system. A chain measures 66 feet (20.12 m), and a furlong measures 660 feet (201.17 m). One acre is the area of 1 chain × 1 furlong.
What is a Hectare?
A hectare (ha) is a metric area unit equal to 10,000 square meters (m²) or 100 meters × 100 meters. The hectare is accepted by the International System of Units (SI) and recognized by the International Bureau of Weights and Measures (BIPM).
Hectares are the standard land measurement in countries following the metric system, including India, the European Union, Australia, and most Asian and African nations.
Acre to Hectare Formula
The acre to hectare formula is: Hectares = Acres ÷ 2.47105381 (or Acres × 0.40468564).
This conversion factor comes from: 1 acre = 4,046.8564224 m² and 1 hectare = 10,000 m². So 4,046.8564224 ÷ 10,000 = 0.40468564.
=A1/2.47105381How to Convert Acre to Hectare
Step 1: Record the acre value
Identify the acre measurement to convert. Example: 10 acres.
Acre to Hectare Conversion Table
Reference table with 18 common acre values converted to hectare. Type a custom value for instant conversion.
| Acre (ac) | Hectare (ha) |
|---|---|
| 0.1 | 0.04047 |
| 0.25 | 0.10117 |
| 0.5 | 0.20234 |
| 1 | 0.40469 |
| 2 | 0.80937 |
| 3 | 1.21406 |
| 5 | 2.02343 |
| 7.5 | 3.03514 |
| 10 | 4.04686 |
| 15 | 6.07028 |
| 20 | 8.09371 |
| 25 | 10.11714 |
| 50 | 20.23428 |
| 75 | 30.35142 |
| 100 | 40.46856 |
| 250 | 101.17141 |
| 500 | 202.34282 |
| 1,000 | 404.68564 |
Conversion factor: 1 ac = 0.40468564 ha
Acre to Hectare Worked Examples
6 worked examples showing acre to hectare conversion for real-world land scenarios.
Convert 1 Acre to Hectare
Single-family home lot in the US
Frequently Asked Questions
5 common questions about acre to hectare conversion.
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