Square Feet to Hectares
Convert square feet (ft²) to hectares (ha). Both measure surface measurement, and the conversion comes up in real estate, farming, construction work.
The Formula
``
hectares = square feet × 0.000009290304
square feet = hectares × 107639.104167
`
One square feet is 9.2903e-6 hectares, and one hectare is 107,639.1 square feet.
Conversion Table
| Square Feet | Hectares |
|---|---|
| 1 ft² | 9.2903e-6 ha |
| 2 ft² | 1.8581e-5 ha |
| 5 ft² | 4.6452e-5 ha |
| 10 ft² | 9.2903e-5 ha |
| 25 ft² | 2.3226e-4 ha |
| 50 ft² | 4.6452e-4 ha |
| 100 ft² | 9.2903e-4 ha |
| 500 ft² | 0.004645 ha |
| 1,000 ft² | 0.00929 ha |
The Other Direction
| Hectares | Square Feet |
|---|---|
| 1 ha | 107,639.1 ft² |
| 2 ha | 215,278.21 ft² |
| 5 ha | 538,195.52 ft² |
| 10 ha | 1,076,391.04 ft² |
| 25 ha | 2,690,977.6 ft² |
| 50 ha | 5,381,955.21 ft² |
| 100 ha | 10,763,910.42 ft² |
| 500 ha | 53,819,552.08 ft² |
| 1,000 ha | 107,639,104.17 ft² |
What Each Unit Is
Square Feet (ft²) — the area of a square one foot on each side, or 0.092903 square metres. The imperial unit US and UK property is advertised in.
Hectares (ha) — exactly 10,000 square metres, or a square 100 m on each side. The metric land unit, introduced with the metric system for agriculture and forestry.
A Sense of Scale
A bedroom is 120–200 ft²- A US home averages 2,300 ft²
- A parking space is 130 ft²
- A hectare is about 2.47 acres
- A rugby pitch is roughly 1 hectare
Precision
The factor 0.000009290304 is rounded. For engineering work carry more digits than the table above, and round only at the end — rounding at each step compounds.
In Code
`javascript
const squareFootToHectare = (value) => value * 0.000009290304;
``
Where This Conversion Comes Up
- Real estate
- Farming
- Construction
- Landscaping
- Flooring
How Many Decimals Do You Need?
Rounding the factor costs accuracy, and how much depends on the factor. Converting 137 ft² with the factor truncated at each decimal place:
| Decimals kept | Factor | 137 ft² becomes | Error |
|---|---|---|---|
| 0 | 0 | 0 | 100.0000% |
| 1 | 0 | 0 | 100.0000% |
| 2 | 0 | 0 | 100.0000% |
| 3 | 0 | 0 | 100.0000% |
| 4 | 0 | 0 | 100.0000% |
The right number of significant figures is set by your input, not by the converter. If you measured square feet to three significant figures, the answer in hectares is only good to three — writing more digits claims precision the measurement never had.