Like on my electronic tuner I Have C3 C4 C5 E3 E4 etc so what numbers on notes am I supposed to tune my guitar too, I keep breaking,and loosening my strings ._.

  • My advice would be to use an online guitar tuner to generate the pitches you need to aim for -- then you can match the sound before fine-tuning with your electronic tuner.
    – NReilingh
    Feb 16, 2014 at 17:48
  • When I tuned my guitar I got a online guitar tuner then pulled out my electric tuner to see what number that was and tuned that way. Feb 17, 2014 at 18:49

1 Answer 1


E2 is the bottom (fattest) string, followed by A2, D3, G3, B3 and the thin E is E4. However, on a guitar tuner, there usually is a 'guitar setting' which recognises the actual open string notes. The thing to be very careful of, as a beginner, is that an E note in one octave can sound like a different E. Indeed, to a tuner, play an E and it'll recognise E. Play a different E and it'll still tell you it's E. Obvious, maybe, but by then, you could have a string an octave too high. It happens !

  • For guitar specifically, the E2 at the fifth fret is the same note and octave as on the open A2. This pattern repeats, except on the B where the 4th fret is the same note and octave as open E4. This at least gives one a check against octave doubling or can get one into the ballpark and then fine-tune with the tuner.
    – horatio
    Feb 18, 2014 at 17:32

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