CW Speed Calculator

Calculate Morse code words per minute from dot timing. Includes dash, gap durations, and Farnsworth spacing support.

Dot Duration

Farnsworth Speed (0=Off)

WPM

Tab to move between fields

Words per Minute

20 WPM

Dash Duration

180 ms

Characters per Minute100

Dot Duration60 ms

Inter-Element Gap60 ms

Inter-Character Gap180 ms

Inter-Word Gap420 ms

Est. CQ Call Time11.9 sec

How to Use This Calculator

Enter your target speed in words per minute (WPM) or characters per minute (CPM).
Optionally set a Farnsworth speed (slower character spacing for practice) if applicable.
Review dot duration (ms), dash duration (ms), and inter-element gap timing.
Use these timings to configure your keyer, decoder, or CW training software.

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Formula

WPM = 1200 / dot_duration_ms (PARIS standard)

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