International maritime alphabet flags

Spell alphabetic text with international flags, or select flags to decode letters.

A–Z alphabet-spelling practice only; not operational navigation/distress signaling or full codebook interpretation.

DirectionEnglish textShow letters

Schematic proportions. Does not interpret operational navigation or distress messages.

How to use this tool

Check the units, enter your values, and run the tool. Results follow the assumptions and method below.