ac to ha
39 unitsResult4.046873e-1
0.404687261ha
1 ac × 0.404687261 = 0.404687261 ha
Convert Acre (US survey) to Hectare (ac to ha)
1 acre (US survey) = 0.404687261 hectares. Convert acre (US survey) to hectares instantly, with the exact factor, the formula and a reference table of common values.
Formula
hectares = acre (US survey) × 0.404687261
ac to ha conversion table
| ac | ha |
|---|---|
| 1 ac | 0.404687261 ha |
| 2 ac | 0.809374522 ha |
| 3 ac | 1.214061783 ha |
| 5 ac | 2.023436305 ha |
| 10 ac | 4.04687261 ha |
| 20 ac | 8.09374522 ha |
| 50 ac | 20.23436305 ha |
| 100 ac | 40.4687261 ha |
| 250 ac | 101.1718152 ha |
| 500 ac | 202.3436305 ha |
| 1000 ac | 404.687261 ha |
What is a acre (us survey)?
The acre (us survey) is a unit of area. One acre (us survey) equals 4046.87261 square meters, and that single factor is behind every figure on this page.
Acre (US survey) conversions are easiest to trust when the arithmetic is visible, so the formula and a table of common values are laid out below.
In writing, the acre (us survey) is usually shortened to "ac". One acre (us survey) is 4046.87261 square meters, and that ratio is what every number on this page is built from.