When I was searching for a table of notes and octaves that is playable as well, I couldn't find one. So I did what anyone would do and made one myself. It's a useful tool for finding out which octave a note is in.
Horizontally in the table are all the notes in an octave, vertically are the different octaves. It ranges from very low to very high. Click on any note to hear it.
If you're looking for an online chromatic tuner try: chromatic-tuner.com, if you need a tap tempo finder try: taptempo.io.