Chart Symbols and Abbreviations

Chart Symbols & Abbreviations is a detailed guide to all the symbols used on nautical charts specified by the International Hydrographic Organization (IHO), plus international abbreviations and supplementary national symbols used by the U.S. and U.K. hydrographic offices.
This app provides quick reference to the “INT 1″ symbols specified by the International Hydrographic Organization (IHO) for use on international marine charts. There are five main sections, each with lettered sub-sections organized into categories to guide users through the hundreds of symbols.
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Features and Benefits:

  • For reference, learning & revision
  • Hi-res graphics
  • Tap & Enlarge feature for greater detail
  • Fully searchable index to all the symbols

Electronic Chart Symbols:
ECDIS symbols used to display Electronic Navigational Chart (ENC) data on Electronic Chart Display and Information Systems (ECDIS) differ from those used on paper charts.  We have produced another app Electronic Chart Symbols ECDIS that explains these symbols in detail.
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