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Ukulele tuning

Open C

Strum all four open and you get a C major chord.

Ukulele · 2 + 2
C4G3E4G4
4th
G3
196.0 Hz
3rd
C4
261.6 Hz
2nd
E4
329.6 Hz
1st
G4
392.0 Hz

Note names won’t tune your ukulele.

Knowing the strings should read G C E G is the easy half. Landing each frequency — and knowing whether you are nine cents flat or three — is the half that needs an ear or an instrument.

1
Open Dial and play a string
It listens as soon as you play. Nothing to press.
2
Turn each peg until the needle centres
Two strings move: the first drops a whole step to G4, and the fourth drops an octave to G3.
3
Check the remaining strings
Changing tension on one string shifts the neck slightly. The rest usually need a nudge.
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Dial showing the low E string at 82.4 hertz, needle centred

What Open C is for

The first string drops a whole step to G and the fourth drops an octave, so the open strings ring a full C major an octave apart at the edges. Slide-friendly, and a quick route to drone-backed melody.

A few chords to try

C
Open
F
Barre 5th
5fr
G
Barre 7th
7fr

Nearby tunings