This calculator allows you to convert from Fathom (US survey) to Nautical mile (UK) and in a reverse direction. To convert from Fathom (US survey) to Nautical mile (UK), enter the amount of Fathom (US survey) into the first input and to convert from Nautical mile (UK) to Fathom (US survey), enter the amount of Nautical mile (UK) into the second input.