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    Free Maritime Tool

    Wind Speed Converter & Beaufort Scale

    Convert wind speeds between knots, m/s, and km/h. View the complete Beaufort scale with wave height estimates.

    Free to use
    No signup required
    Instant results

    Enter Wind Speed

    Enter value...

    Beaufort Scale Reference

    0
    Calm
    0+ kn0m
    1
    Light air
    2+ kn0-0.1m
    2
    Light breeze
    5+ kn0.1-0.5m
    3
    Gentle breeze
    9+ kn0.5-1m
    4
    Moderate breeze
    13+ kn1-1.5m
    5
    Fresh breeze
    18+ kn1.5-2.5m
    6
    Strong breeze
    24+ kn2.5-4m
    7
    Near gale
    30+ kn4-5.5m
    8
    Gale
    37+ kn5.5-7.5m
    9
    Strong gale
    44+ kn7-10m
    10
    Storm
    52+ kn9-12.5m
    11
    Violent storm
    60+ kn11.5-16m
    12
    Hurricane
    64+ kn>14m

    Also in the ClearShip app: Wind Converter

    Works offline on board where there is no signal, next to the anchor alarm and your boat's maintenance tasks.

    More about the app
    Get it on Google PlayDownload on the App Store

    Discover More Sailing Tools

    Register for ClearShip to manage boat maintenance, tasks, checklists, inventory, and collaborate with your crew - plus access all sailing tools.

    Create Free AccountSign In

    Unit Converter

    Nautical and metric conversions

    Phonetic Alphabet

    NATO alphabet and text converter

    OpenSeaMap

    Interactive nautical charts

    Weather Charts

    European weather and wind maps

    Sail Trim

    Sailing optimization guide

    Wind Triangle

    True and apparent wind, visualized

    VMG Calculator

    Optimal upwind and downwind angles

    Laylines

    Port and starboard tack laylines to a mark

    Mayday Emergency

    Distress call generator

    Navigation Calculator

    Course conversion, leeway, and current triangle

    Distance & Course

    Nautical miles and course between positions

    Coordinate Converter

    GPS position in degrees, minutes, seconds

    Anchor Calculator

    Calculate anchor rode length and scope

    Crew List

    IMO FAL Form 5 crew list generator

    Boat Floor Plan Editor

    Draw your boat layout with boat symbols, export as SVG