Hectare to Acre Converter
Convert Hectare (ha) to Acre (ac). Results update as you type, with a conversion table and the formula below.
1 ha =
2.4711 ac
ha to ac conversion table
| ha | ac |
|---|---|
| 1 | 2.4711 |
| 2 | 4.9421 |
| 3 | 7.4132 |
| 4 | 9.8842 |
| 5 | 12.3553 |
| 6 | 14.8263 |
| 7 | 17.2974 |
| 8 | 19.7684 |
| 9 | 22.2395 |
| 10 | 24.7105 |
| 15 | 37.0658 |
| ha | ac |
|---|---|
| 20 | 49.4211 |
| 25 | 61.7763 |
| 30 | 74.1316 |
| 40 | 98.8422 |
| 50 | 123.5527 |
| 60 | 148.2632 |
| 70 | 172.9738 |
| 80 | 197.6843 |
| 90 | 222.3948 |
| 100 | 247.1054 |
How to use
- Type the ha value to convert.
- The result appears instantly in ac; the swap button reverses direction.
- For common values, check the conversion table below.
Frequently asked questions
How many ac is 1 ha?+
1 ha = 2.4711 ac. The table below lists the values you'll reach for most often.
How accurate are the results?+
The math uses internationally standardized definitions; only the display is rounded to significant digits. Accurate enough for school, work and daily life.
How do I convert ac back to ha?+
Hit the swap arrows in the middle of the converter above — the direction flips and your value is kept.
Is it really free?+
Yes. No sign-up, no install, no usage limits. The site is ad-supported.
Unit guide
The formula
1 ha equals 2.4711 ac — multiply a ha value by 2.4711 to get ac. Example: 5 ha × 2.4711 = 12.3553 ac.
Going the other way, 1 ac = 0.404686 ha — multiply by 0.404686, or hit the swap button on the converter above.
When is this conversion needed?
Useful for apartment floor areas, overseas property listings (sq ft) and land sizes (acres, hectares).