Chart Conversion Calculator

Calculate nautical chart sizes and distances with this easy-to-use online calculator. Get accurate results quickly and easily!

Nautical Chart Calculation is a tool for determining the Nautical Miles, Statute Miles, Inches, Miles, and other measurements from a Chart Scale. This calculator is designed to convert a much smaller distance, such as an inch, as seen on a marine or nautical chart into a larger distance.

Chart Conversion Required Data Entry
Chart Scale 1 to
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    12 Number of calculations