Hectare vs Acre: What's the Difference?
| Property | Hectare (ha) | Acre (ac) |
|---|---|---|
| Symbol | ha | ac |
| System | Metric (SI) | Imperial |
| Category | area | area |
| Used in | Worldwide | United States, United Kingdom, Canada, India |
| Conversion | 1 ha = 2.47105 ac | |
Definitions
Hectare (ha)
The hectare (symbol: ha) is a non-SI metric unit of area equal to 10,000 square meters (10⁴ m²), or equivalently 100 ares, or 0.01 square kilometers. The word is formed from the SI prefix "hecto-" (meaning 100) and the unit "are" (a metric unit equal to 100 square meters). A hectare is the area of a square with sides of exactly 100 meters.
Learn more →Acre (ac)
The acre is a unit of area used in the imperial and US customary measurement systems, equal to exactly 43,560 square feet, 4,840 square yards, or approximately 4,046.86 square meters (0.4047 hectares). The acre is primarily used for measuring land area in the United States, United Kingdom, and several other countries with British colonial heritage.
Learn more →FAQ
What is the difference between Hectare and Acre?
Hectare (ha) belongs to the metric system. Acre (ac) belongs to the imperial system. 1 ha = 2.47105 ac.
How to convert Hectare to Acre?
Multiply the value in Hectares by 2.47105. Formula: ac = ha × 2.47105.
When should I use Hectare vs Acre?
It depends on context. Hectare is used in Worldwide. Acre is used in United States, United Kingdom, Canada, India.