Square Miles To Square Km Converter
Convert large land areas from square miles to square kilometers (km²). A key tool for geography, cartography, and large-scale planning.
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Converting Large Areas: Square Miles to Square Kilometers
Understanding Large-Scale Area Units
When discussing the area of countries, states, large parks, or bodies of water, two common units are the square mile (mi²) and the square kilometer (km²). The square mile is part of the imperial system, predominantly used in the United States, while the square kilometer is the standard SI unit used by most of the world.
The Conversion Explained
The conversion factor is derived from the linear relationship between a mile and a kilometer:
- 1 mile ≈ 1.60934 kilometers
For area, we square this conversion factor:
(1.60934 km/mi)² ≈ 2.58999 km²/mi²
This gives us the primary conversion formulas:
- Square Miles to Square Kilometers: km² = mi² × 2.58999
- Square Kilometers to Square Miles: mi² = km² / 2.58999
How to Use This Converter
This tool provides a seamless two-way conversion.
- Enter a value in the "Square Miles (mi²)" field, and the equivalent in square kilometers will appear instantly.
- Conversely, enter a value in the "Square Kilometers (km²)" field to find its equivalent in square miles.
- Both fields are interactive and update in real-time as you type.
Examples in Context
- Geography: The state of Texas has an area of about 268,597 square miles. Using the converter, we can see this is approximately 695,662 square kilometers.
- National Parks: Yellowstone National Park is about 3,472 square miles, which is equivalent to roughly 8,992 square kilometers.
- International Comparison: If a country is reported to have an area of 500,000 km², you can quickly convert this to approximately 193,051 mi² to better visualize its size compared to US states.
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