Convert Hectares to Acres
Hectares to acres is the conversion you reach for when a metric land area needs to be read in the acre, the unit most people picture for farms and fields. One hectare is about 2.47 acres — roughly two and a half acres — so the number gets a bit larger when you switch from hectares to acres.
Hectares to Acres conversion table
| Hectares (ha) | Acres (ac) |
|---|---|
| 1 | 2.471054 |
| 2 | 4.942108 |
| 3 | 7.413161 |
| 5 | 12.355269 |
| 10 | 24.710538 |
| 20 | 49.421076 |
| 50 | 123.552691 |
| 100 | 247.105381 |
| 500 | 1,235.526907 |
| 1,000 | 2,471.053815 |
The formula
To convert hectares to acres, multiply the area in hectares by approximately 2.4710538:
acres = hectares × 2.4710538
A worked example
Say you have a 4-hectare property and want that area in acres:
4 × 2.4710538 = 9.8842153 acres
So 4 hectares is about 9.8842153 acres (the full value is 9.884215258686613).
Why it's an approximation
The hectare and the acre grew out of two different measuring traditions, and the relationship between them doesn't land on a round number. One hectare works out to 2.471053814671653 acres, a value with digits that never end, so you always round it off somewhere. That's why converting hectares to acres gives an approximate answer rather than an exact one. For a quick gut check, remember one hectare is about two and a half acres.
When you'll use it
Reading farm and land listings that mix metric and imperial units, comparing a plot given in hectares against acreage you already know, and sizing up fields, parks, or building sites in the unit that feels more familiar.
Frequently asked questions
How many acres are in a hectare?
About 2.4710538 acres. A handy way to remember it: one hectare is roughly two and a half acres.
Is the hectare to acre conversion exact?
No. The factor is 2.471053814671653 acres per hectare, a value whose digits keep going, so any number you use is rounded. Multiplying by about 2.4710538 is close enough for almost anything.
What does one hectare look like compared to an acre?
A hectare is noticeably bigger — about two and a half acres. So a 10-hectare farm is roughly 24.7 acres.