Sale has ended but you can still get this app.
Download km vs. NM LengthSter D2 Now

Official Description

kilometers vs. nautical miles - unit of length conversion.

For calculation – nautical - international mile equal to integers 1852 meters, agreement in the year 1929.

For some countries – English is the default language.

Fast in use – do not need connection to the Internet.

Decimal point is a dot “.” – and the result have 2 fraction digits.

Simple and fast in use when you need to convert a unit of length, from kilometers to nautical miles or from nautical miles to kilometers, with a simple graphical user interface.

No Advertising.

Also for tablets.

(note: nautical mile = NM)