What this converter does
This converter turns hectares into acres and back instantly, with square metres, square feet, square kilometres and the Indian units guntha and cent alongside. Each pair uses an exact ratio, so farmland and site areas stay accurate. Enter a value and the answer updates live.
One hectare is exactly 10,000 square metres and an acre is 4,046.856, so a hectare is about 2.4711 acres. Need the other direction? Use the acre to hectare converter.
The units it covers
Every unit is a fixed area, so each converts through the square metre with a set ratio.
View all units & their values
| Unit | Symbol | Value | Mainly used |
|---|---|---|---|
| Square metre | m² | 1 | SI unit of area |
| Hectare | ha | 10,000 | Farmland, planning (metric) |
| Acre | ac | 4,046.86 | Land in US, UK, India |
| Square foot | ft² | 0.0929 | Plots, built-up area (US) |
| Square kilometre | km² | 1,000,000 | Regions, large sites |
| Guntha | guntha | 101.17 | Land in western India |
| Cent | cent | 40.4686 | Land in south India |
The formula
Each unit has a fixed value in square metres, so converting means going through the m² once:
result = value × factor_from ÷ factor_toWhere:
- value = the area you typed, in the “from” unit
- factor_from = the “from” unit’s value in square metres
- factor_to = the “to” unit’s value in square metres
Worked example
Convert 3 hectares to acres.
1 ha = 2.471054 acres3 × 2.471054 = 7.4132 acresSo 3 hectares is about 7.41 acres.
The units in this example
A metric unit of area equal to 10,000 square metres (a 100 m square), the standard for farmland and land planning worldwide.
- 1 ha = 10,000 m²
- 1 ha ≈ 2.4711 acres
- 1 ha = 100 ares
- 1 km² = 100 hectares
A customary land unit used in the US, UK and India, equal to 4,046.856 square metres or 43,560 square feet.
- 1 acre = 4,046.86 m²
- 1 acre ≈ 0.4047 hectare
- 1 acre = 43,560 ft²
- 1 acre ≈ 40.469 cent