Code tool

Nautical Unit Converter

Convert nautical distance, depth and speed locally. Source and target units must describe the same quantity.

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Definitions: 1 nmi = 1852 m; 1 kn = 1852 m/h; 1 international ft = 0.3048 m; 1 fathom = 6 ft = 1.8288 m; 1 international mile = 1609.344 m; 1 km = 1000 m.

A QUICK WALKTHROUGH

How to use this tool

  1. Enter a finite value.
  2. Choose source and target units for the same quantity.
  3. Convert, then copy or download the report.

Exact unit definitions

Definitions: 1 nmi = 1852 m; 1 kn = 1852 m/h; 1 international ft = 0.3048 m; 1 fathom = 6 ft = 1.8288 m; 1 international mile = 1609.344 m; 1 km = 1000 m.

Local conversion

Conversion runs in your browser; values are not sent to a server.

GOOD TO KNOW

Common questions

How long is a nautical mile?

Exactly 1852 meters.

What is a knot?

One nautical mile per hour, exactly 1852 meters per hour.

How deep is a fathom?

Exactly 1.8288 m or 6 international feet.

Can I convert a length to a speed?

No. A speed needs a time basis; this tool converts within length or speed only.