Tools WPM Calculator
# Morse Code WPM Calculator Convert between words per minute, characters per minute, and dot duration. Speed (WPM) 20 WPM 100 Characters/min 60 ms Dot duration 180 ms Dash duration 180 ms Letter gap 420 ms Word gap 3000 ms PARIS duration
## Understanding Morse Code Speed Morse code speed is measured in Words Per Minute (WPM) using the PARIS standard. The word "PARIS" contains exactly 50 dot-units when transmitted, making it the universal calibration word. At 20 WPM, each dot lasts 60 milliseconds. A dash is three times longer (180ms). The gap between elements within a letter equals one dot (60ms), between letters equals three dots (180ms), and between words equals seven dots (420ms). The formula is simple: dot_ms = 1200 / WPM . This derives from the fact that PARIS at 1 WPM takes exactly 60,000ms (one minute), and PARIS = 50 dot-units, so one dot-unit = 60000 / 50 = 1200ms at 1 WPM. A beginner typically starts at 5–10 WPM. Proficient operators work at 20–30 WPM. Contest operators and professionals can exceed 40 WPM. The world record is over 75 WPM.

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Canonical: https://morsely.org/tools/wpm-calculator