Square Inch to Hectare Conversion
Convert square inch to hectare with precision. Enter values and get instant conversions.
Area Converter
1 Square Inch = 0 Hectare
Common Conversions
About Square Inch to Hectare Conversion
Converting from Square Inch to Hectare is a common area conversion.
This online converter allows you to easily convert between square inch and hectare, providing instant results with high precision.
Square Inch
Definition: A square inch (symbol: in²) is an imperial and US customary unit of area equal to a square with 1 inch sides. One square inch equals exactly 6.4516 square centimeters or 0.00694 square feet.
History: Originated from the Roman 'uncia' (1/12 of a foot). The international inch definition of 1959 (exactly 25.4 mm) standardized the square inch in metric terms.
Current use: Used in engineering (stress calculations), manufacturing (material specifications), and electronics (chip sizes) in the US. Common for measuring small areas where imperial units are preferred.
Hectare
Definition: A hectare (symbol: ha) is a metric unit of area equal to 10,000 square meters (100m × 100m) or approximately 2.471 acres. It is the most commonly used unit for measuring land area in the metric system.
History: Introduced in 1795 as part of the original metric system in France, using the Greek 'hecto-' (hundred) prefix with the are (100 square meters). The hectare became 100 ares, providing a practical unit for land measurement.
Current use: The standard unit for agricultural land, forestry, and urban planning in metric countries. Used worldwide in official land records except in the United States. Common in environmental science and land management.
Details
- From: Square Inch
- To: Hectare
- Formula: 1 Square Inch = 0.0000000645 Hectare
- Example: 25 Square Inch = 0.0000016129 Hectare
Square Inch to Hectare Conversion Table
| Square Inch | Hectare |
|---|---|
| 0.01 | 6e-10 |
| 0.1 | 6.5e-9 |
| 1 | 6.45e-8 |
| 2 | 1.29e-7 |
| 3 | 1.935e-7 |
| 5 | 3.226e-7 |
| 10 | 6.452e-7 |
| 20 | 0.0000012903 |
| 50 | 0.0000032258 |
| 100 | 0.0000064516 |
| 1000 | 0.000064516 |