Guitar fretboard·string 6 fret 4
string 6 · fret 4
G#2
103.83 Hz

Guitar string 6, fret 4 — G#2

String 6 at fret 4 gives G#2 at 103.83 Hz. On a 648 mm scale it sits 133.7 mm from the nut.

Note
G#2
Frequency
103.83 Hz
MIDI number
44
From the nut · 648 mm (Fender)
133.7 mm
From the nut · 628 mm (Gibson)
129.6 mm
From the nut · 650 mm (classical)
134.1 mm
Ringing length
514.3 mm

The frets crowd as you climb

Frets are spaced by ratio, not by equal steps: each one divides the remaining length by the twelfth root of two. That is why the 12th fret lands at exactly half the string — the octave.

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String 1 is the thinnest. The string printed at the top is the one that sounds highest.

How to read this

  • One fret is one semitone; twelve of them make an octave.
  • Frequency multiplies by the twelfth root of two per semitone — A4 is 440 Hz.
  • Fret position = scale length × (1 − 1 ÷ 2^(fret/12)).
  • String 1 is the thinnest; standard tuning reads E-B-G-D-A-E from there.

Frequently asked questions

Q. What note is string 6, fret 4?

G#2, at 103.83 Hz — MIDI number 44.

Q. Can I play the same note on another string?

Not within this fretboard.

Q. How far is this fret from the nut?

133.7 mm on a 648 mm scale, 129.6 mm on a 628 mm one.

Q. Where is the octave above?

Fret 16 on the same string.