Convert Acres to Hectares — Instantly
Convert acres to hectares (ha) instantly using the formula hectares = acres × 0.40468564224. Includes a calculator, conversion table, worked examples, and FAQs.
Acres to hectares converter
Quick Reference
Acres to Hectares Conversion Table
Common acre to hectare conversions at a glance, based on the standard relationship 1 acre = 0.40468564224 ha.
| Acres (ac) | Calculation | Hectares (ha) |
|---|---|---|
| 0.01 ac | 0.01 × 0.40468564224 | 0.0040468564224 ha |
| 0.05 ac | 0.05 × 0.40468564224 | 0.020234282112 ha |
| 0.1 ac | 0.1 × 0.40468564224 | 0.040468564224 ha |
| 0.25 ac | 0.25 × 0.40468564224 | 0.10117141056 ha |
| 0.5 ac | 0.5 × 0.40468564224 | 0.20234282112 ha |
| 0.75 ac | 0.75 × 0.40468564224 | 0.30351423168 ha |
| 1 ac | 1 × 0.40468564224 | 0.40468564224 ha |
| 2 ac | 2 × 0.40468564224 | 0.80937128448 ha |
| 2.5 ac | 2.5 × 0.40468564224 | 1.0117141056 ha |
| 5 ac | 5 × 0.40468564224 | 2.0234282112 ha |
| 10 ac | 10 × 0.40468564224 | 4.0468564224 ha |
| 20 ac | 20 × 0.40468564224 | 8.0937128448 ha |
| 25 ac | 25 × 0.40468564224 | 10.117141056 ha |
| 50 ac | 50 × 0.40468564224 | 20.234282112 ha |
| 100 ac | 100 × 0.40468564224 | 40.468564224 ha |
Step-by-Step
How to Convert Acres to Hectares
Converting acres to hectares is simple once you know the exact conversion factor.
The Formula
Acres and hectares are both units of area used in land measurement, property size, agriculture, real estate, and site planning. The standard reference is 1 acre = 0.40468564224 hectares.
To convert hectares back to acres, multiply hectares by 2.4710538147.
How to Turn Acres into Hectares — Step by Step
Write down the acre value
Identify the number of acres you want to convert — for example, 2 acres.
Multiply by 0.40468564224
2 ac × 0.40468564224 = 0.80937128448 hectares. This gives you the equivalent area in hectares.
Label your answer
Always include the unit ha or hectares so the result is clear and unambiguous.
Acres vs Hectares
What Is the Difference Between Acres and Hectares?
Acres and hectares are both units used to measure land area. Acres are common in property listings, farms, and land parcels, while hectares are widely used in international land measurement, agriculture, mapping, and planning.
The relationship used on this page is based on the standard definition: 1 acre = 0.40468564224 ha. To convert acres to hectares, multiply the number of acres by 0.40468564224.
For example, 0.5 acre = 0.20234282112 ha, 1 acre = 0.40468564224 ha, and 10 acres = 4.0468564224 ha.
This conversion is commonly used in real estate, land surveys, agriculture, site planning, and property comparison.
Worked Examples
Sample Acre to Hectare Calculations
Here is how to calculate acres to hectares for commonly searched values.
0.1 ac to hectares
0.1 × 0.40468564224 = 0.040468564224 hectares. One tenth of an acre is about 0.04047 ha.
0.5 ac to hectares
0.5 × 0.40468564224 = 0.20234282112 hectares. Half an acre is about 0.20234 ha.
1 ac to hectares
1 × 0.40468564224 = 0.40468564224 hectares. One acre equals exactly 0.40468564224 ha.
2 ac to hectares
2 × 0.40468564224 = 0.80937128448 hectares. Two acres is about 0.80937 ha.
2.5 ac to hectares
2.5 × 0.40468564224 = 1.0117141056 hectares. Two and a half acres is about 1.01171 ha.
5 ac to hectares
5 × 0.40468564224 = 2.0234282112 hectares. Five acres is about 2.02343 ha.
10 ac to hectares
10 × 0.40468564224 = 4.0468564224 hectares. Ten acres is about 4.04686 ha.
50 ac to hectares
50 × 0.40468564224 = 20.234282112 hectares. Fifty acres is about 20.23428 ha.
FAQ
Frequently Asked Questions
Everything you need to know about converting acres to hectares.