Convert Square Decimeter (dm²) to Square Mile (US Survey) (mi² (US)) instantly.
About these units
Square Decimeter (dm²)
A square decimeter equals 100 square centimeters or 0.01 square meters. It is used in educational contexts, interior design, textiles, and packaging. Students often learn area concepts using dm² because it bridges the intuitive size of the square meter with the more granular cm². In design fields, dm² helps specify tile surfaces, patterns, laminates, and coverings. Industrial packaging may express surface areas (e.g., of labels or film wrapping) in dm² for regulatory or cost-calculation purposes. It offers a comfortable intermediate scale for everyday applications.
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.