Square Mile to Square Kilometer (km²) Conversion
Convert square mile to square kilometer (km²) with precision. Enter values and get instant conversions.
Area Converter
1 Square Mile = 0 Square Kilometer (km²)
Common Conversions
About Square Mile to Square Kilometer (km²) Conversion
Converting from Square Mile to Square Kilometer (km²) is a common area conversion.
This online converter allows you to easily convert between square mile and square kilometer (km²), providing instant results with high precision.
Square Mile
Definition: A square mile (symbol: mi²) is an imperial and US customary unit of area equal to the area of a square with 1 mile (5280 feet) on each side. One square mile equals exactly 2.589988 square kilometers or 640 acres.
History: Originated from the English system of measurement, with the mile dating back to Roman times. The square mile became standard for land measurement in the British Empire and later in the United States.
Current use: Primarily used in the United States for measuring large land areas such as cities, counties, and national parks. Commonly appears in US real estate, zoning laws, and geographical surveys. The UK has largely transitioned to square kilometers but still uses square miles in some contexts.
Square Kilometer (km²)
Definition: A square kilometer (symbol: km²) is a multiple of the square meter, equal to the area of a square with 1 kilometer (1000 meters) on each side. One square kilometer equals 1,000,000 square meters or approximately 0.3861 square miles.
History: Developed as part of the metric system's decimal-based scaling, the square kilometer became particularly useful for geographical measurements. Its adoption grew with the metric system's international acceptance in the 19th and 20th centuries.
Current use: Primarily used to measure large land areas such as cities, national parks, and countries. Commonly appears in geographical surveys, urban planning, and environmental studies. Most world maps and atlases use square kilometers, though some US publications still use square miles.
Details
- From: Square Mile
- To: Square Kilometer (km²)
- Formula: 1 Square Mile = 2.5899881103 km²
- Example: 25 Square Mile = 64.7497027584 km²
Square Mile to Square Kilometer (km²) Conversion Table
| Square Mile | Square Kilometer (km²) |
|---|---|
| 0.01 | 0.0258998811 |
| 0.1 | 0.258998811 |
| 1 | 2.5899881103 |
| 2 | 5.1799762207 |
| 3 | 7.769964331 |
| 5 | 12.9499405517 |
| 10 | 25.8998811034 |
| 20 | 51.7997622067 |
| 50 | 129.4994055168 |
| 100 | 258.9988110336 |
| 1000 | 2589.988110336 |