Here's a chart -

http://www.navy-radio.com/tty/speed-feed.gif

Note - OPM is Operations Per Minute
Note - 5 data bits means 7 or 7.42 "bits" per character depending on the stop pulse length

Note - there are 6 characters per standard word - 5 letters plus a space.

Note - the main shaft on a printer runs faster than 1 character per rotation

e.g. for 60wpm 368 OPM, the shaft is running at 420 rpm

There was an interesting discussion on timing back 3 years ago

http://mailman.qth.net/pipermail/greenkeys/2022-January/054649.html

Cheers.

Nick England K4NYW
www.navy-radio.com

On Thu, Jan 30, 2025 at 8:08 PM Doug Jackson via GreenKeys <greenkeys@mailman.qth.net> wrote:

Is somebody able to explain the relationship between words per minute and bits per second?

It obviously depends on 5 bit vs 8 bit, and some standard associated with the length of an average word.