Convert Square Miles to Square Kilometers
Enter your square mile value in the form below to get the value calculated in square kilometers.
How to Convert Square Miles to Square Kilometers Using an Easy Conversion Formula
Convert square miles to square kilometers with this simple formula:
Converting a square mile area measurement to a square kilometer measurement involves multiplying your area by the conversion ratio to find the result. A square mile is equal to 2.589988 square kilometers, so to convert simply multiply by 2.589988.
Learn more about finding the area of your space using our area calculator.
Square miles and square kilometers are both units used to measure area. Learn more about area and find more area measurement conversion calculators. A square mile is an imperial measurement and can be abbreviated as sq mi, for example 1 sq mi. A square kilometer is a metric measurement and can be abbreviated as sq km, for example 1 sq km. Learn more about the metric system, including the common unit prefixes and how to convert between metric units.
Square Mile Measurements and Equivalent Square Kilometer Conversions
| Square Miles | Square Kilometers |
|---|---|
| 1 sq mi | 2.59 sq km |
| 2 sq mi | 5.18 sq km |
| 3 sq mi | 7.77 sq km |
| 4 sq mi | 10.36 sq km |
| 5 sq mi | 12.95 sq km |
| 6 sq mi | 15.54 sq km |
| 7 sq mi | 18.13 sq km |
| 8 sq mi | 20.72 sq km |
| 9 sq mi | 23.31 sq km |
| 10 sq mi | 25.9 sq km |
| 11 sq mi | 28.49 sq km |
| 12 sq mi | 31.08 sq km |
| 13 sq mi | 33.67 sq km |
| 14 sq mi | 36.26 sq km |
| 15 sq mi | 38.85 sq km |
| 16 sq mi | 41.44 sq km |
| 17 sq mi | 44.03 sq km |
| 18 sq mi | 46.62 sq km |
| 19 sq mi | 49.21 sq km |
| 20 sq mi | 51.8 sq km |
| 21 sq mi | 54.39 sq km |
| 22 sq mi | 56.98 sq km |
| 23 sq mi | 59.57 sq km |
| 24 sq mi | 62.16 sq km |
| 25 sq mi | 64.75 sq km |
| 26 sq mi | 67.34 sq km |
| 27 sq mi | 69.93 sq km |
| 28 sq mi | 72.52 sq km |
| 29 sq mi | 75.11 sq km |
| 30 sq mi | 77.7 sq km |
| 31 sq mi | 80.29 sq km |
| 32 sq mi | 82.88 sq km |
| 33 sq mi | 85.47 sq km |
| 34 sq mi | 88.06 sq km |
| 35 sq mi | 90.65 sq km |
| 36 sq mi | 93.24 sq km |
| 37 sq mi | 95.83 sq km |
| 38 sq mi | 98.42 sq km |
| 39 sq mi | 101.01 sq km |
| 40 sq mi | 103.6 sq km |
More Area Conversions
- Convert to Acres Area
- 1 sq mi is equal to 640 acres
- Convert to Square Yards Area
- 1 sq mi is equal to 3,097,600 square yards
- Convert to Square Feet Area
- 1 sq mi is equal to 27,878,400 square feet
- Convert to Square Inches Area
- 1 sq mi is equal to 4,014,489,599.5 square inches
- Convert to Hectares Area
- 1 sq mi is equal to 258.998811 hectares
- Convert to Ares Area
- 1 sq mi is equal to 25,899.9 ares
- Convert to Square Meters Area
- 1 sq mi is equal to 2,589,988.1 square meters
- Convert to Square Centimeters Area
- 1 sq mi is equal to 25,899,881,100 square centimeters
- Convert to Square Millimeters Area
- 1 sq mi is equal to 2,589,988,110,000 square millimeters
