Convert Square Mile (US Survey) (mi² (US)) to Square Kilometer (km²) instantly.
Square Mile (US Survey) to Square Kilometer conversion
1 Square Mile (US Survey) (mi² (US)) = 2.5899985 Square Kilometer (km²). To convert Square Mile (US Survey) to Square Kilometer, multiply the value by 2.5899985.
| Square Mile (US Survey) (mi² (US)) | Square Kilometer (km²) |
|---|---|
| 1 | 2.5899985 |
| 2 | 5.1799969 |
| 5 | 12.949992 |
| 10 | 25.899985 |
| 25 | 64.749962 |
| 50 | 129.49992 |
| 100 | 258.99985 |
| 1000 | 2589.9985 |
Frequently asked questions
How many Square Kilometer are in one Square Mile (US Survey)?
One Square Mile (US Survey) (mi² (US)) equals 2.5899985 Square Kilometer (km²).
How do I convert Square Mile (US Survey) to Square Kilometer?
To convert Square Mile (US Survey) to Square Kilometer, multiply the value by 2.5899985.
What is 10 Square Mile (US Survey) in Square Kilometer?
10 Square Mile (US Survey) = 25.899985 Square Kilometer.
About these units
Square Mile (US Survey) (mi² (US))
The US survey square mile is extremely close to the international square mile but is defined using the US survey foot, a slightly different value than the international foot historically used in land surveying. This unit appears in American land deeds, cadastral maps, and federal land management documents. The Public Land Survey System (PLSS), which divided much of the western United States into townships and sections, relied heavily on survey-based square miles. Although the modern US has transitioned to the international foot (as of 2023), historical land descriptions remain legally tied to the survey-based definition, ensuring its continued relevance.
Square Kilometer (km²)
A square kilometer equals one million square meters and is the standard unit for expressing large land areas, especially in geography, ecology, national planning, and environmental science. Countries, cities, national parks, forests, wetlands, and even ocean surface regions are frequently described in km². Because it provides a manageable scale for features too large for hectares or acres, it is widely used in atlases, scientific papers, and government reports. The square kilometer also plays a major role in ecology, where species ranges, habitat fragmentation, and conservation zones are measured using this unit. In geopolitics, km² help define national borders and territorial claims, making it a powerful instrument of scientific and political discourse.