Online calculator to convert square miles to hectares (mi2 to ha) with formulas, examples, and tables. Our conversions provide a quick and easy way to convert between Area units.
Conversion Calculator
Enter your value in the conversion calculator below.
Convert mi2 to hectares
TIP: If the result of your conversion is 0, try increasing the "Decimals".
Conversion Definitions
The following is a list of definitions relating to conversions between square miles and hectares.
What is a square mile (mi2)?
A square mile is a unit of area in both US Customary Units as well as the Imperial System. The symbol for square mile is mi2 or sq mi. There are 0.00386102 square miles in a hectare. A square mile is calculated as the area of a square that has 1 mile on each side.
What is a hectare (ha)?
A hectare is a unit of area in the Metric System. The symbol for hectare is ha. There are 258.998811 hectares in a square mile.
Conversion Formula
Let's take a closer look at the conversion formula so that you can do these conversions yourself with a calculator or with an old-fashioned pencil and paper.
The formula to convert from mi2 to hectares is:
hectares = mi2 x 258.998811
Conversion Example
Next, let's look at an example showing the work and calculations that are involved in converting from square miles to hectares (mi2 to ha).
Square Miles to Hectares Conversion Example
Task: Convert 25 square miles to hectares (show work) Formula: mi2 x 258.998811 = hectares Calculations: 25 mi2 x 258.998811 = 6,474.970275 hectares Result: 25 mi2 is equal to 6,474.970275 hectares
Conversion Table
For quick reference purposes, below is a conversion table that you can use to convert from mi2 to hectares.
Square Miles to Hectares Conversion Chart
| square miles (mi2) | hectares (ha) |
|---|---|
| 1 mi2 | 258.998811 hectares |
| 2 mi2 | 517.997622 hectares |
| 3 mi2 | 776.996433 hectares |
| 4 mi2 | 1,035.995244 hectares |
| 5 mi2 | 1,294.994055 hectares |
| 6 mi2 | 1,553.992866 hectares |
| 7 mi2 | 1,812.991677 hectares |
| 8 mi2 | 2,071.990488 hectares |
| 9 mi2 | 2,330.989299 hectares |
| 10 mi2 | 2,589.98811 hectares |
| 20 mi2 | 5,179.97622 hectares |
| 30 mi2 | 7,769.96433 hectares |
| 40 mi2 | 10,359.95244 hectares |
| 50 mi2 | 12,949.94055 hectares |
| 75 mi2 | 19,424.910825 hectares |
| 100 mi2 | 25,899.8811 hectares |
| 250 mi2 | 64,749.70275 hectares |
| 500 mi2 | 129,499.4055 hectares |
| 750 mi2 | 194,249.10825 hectares |
| 1,000 mi2 | 258,998.811 hectares |
| 2,500 mi2 | 647,497.0275 hectares |
| 5,000 mi2 | 1,294,994.055 hectares |
| 7,500 mi2 | 1,942,491.0825 hectares |
| 10,000 mi2 | 2,589,988.11 hectares |
| 25,000 mi2 | 6,474,970.275 hectares |
| 50,000 mi2 | 12,949,940.55 hectares |
| 75,000 mi2 | 19,424,910.825 hectares |
| 100,000 mi2 | 25,899,881.1 hectares |
| 250,000 mi2 | 64,749,702.75 hectares |
Related Units
This table provides a summary of the Area units within their respective measurement systems.
| Unit | Symbol | Measurement System |
|---|---|---|
| square inches | in2 or sq in | US Customary Units/Imperial System |
| square feet | ft2 or sq ft | US Customary Units/Imperial System |
| square yards | yd2 or sq yd | US Customary Units/Imperial System |
| acres | ac | US Customary Units/Imperial System |
| square miles | mi2 or sq mi | US Customary Units/Imperial System |
| square millimeters | mm2 | Metric System |
| square centimeters | cm2 | Metric System |
| square decimeters | dm2 | Metric System |
| square meters | m2 | Metric System |
| square decameters | dam2 | Metric System |
| square hectometers | hm2 | Metric System |
| hectares | ha | Metric System |
| square kilometers | km2 | Metric System |
Note: For area conversions, US Customary Units and the Imperial System are equivalent.
Advertisements