Guitar fretboard·string 6 fret 5
string 6 · fret 5
A2
110 Hz

Guitar string 6, fret 5 — A2

String 6 at fret 5 gives A2 at 110 Hz. On a 648 mm scale it sits 162.5 mm from the nut.

Note
A2
Frequency
110 Hz
MIDI number
45
From the nut · 648 mm (Fender)
162.5 mm
From the nut · 628 mm (Gibson)
157.5 mm
From the nut · 650 mm (classical)
163.1 mm
Ringing length
485.5 mm

The same note sits in several places

Unlike a piano, a guitar repeats the same pitch on different strings. Which one you take changes the tone and the shape your hand has to make.

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.

Nearby positions

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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 5?

A2, at 110 Hz — MIDI number 45.

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

Yes: string 5 fret 0.

Q. How far is this fret from the nut?

162.5 mm on a 648 mm scale, 157.5 mm on a 628 mm one.

Q. Where is the octave above?

Fret 17 on the same string.