International Morse Code
Per ITU-R M.1677…
2 Spacing and length of the signals
2.1 A dash is equal to three dots.
2.2 The space between the signals forming the same letter is equal to one dot.
2.3 The space between two letters is equal to three dots.
2.4 The space between two words is equal to seven dots.
Here is a blunt web page detailing how to quickly learn morse code…
Well worth a look.