Fig. 1 ·
The Online Tuner
♭ Flat
In tune
Sharp ♯
READY
A4 440 HZ
Strings · tap to hear
Start
A4 440

Press start and allow the microphone · nothing is recorded · or tap a string to tune by ear

Fig. 2 · Headstock · tap a note to hear it

While you play, an arrow on the peg shows which way to turn it. Machine heads vary, so if the note moves the wrong way, turn the other way.

Ukulele tuner online

Tune your soprano, concert, tenor or baritone ukulele online. Pluck a string and the tuner shows you exactly which way to turn the peg.

Standard ukulele tuning is G C E A. The G string is tuned higher than the C string (re-entrant tuning), which gives the ukulele its bright, sweet sound.

Also called · GCEA · gCEA · C tuning

§ 1

String chart

String 1 is the thinnest. Frequencies are exact at A4 = 440 Hz; change the reference on the A4 knob.
StrNoteFrequency
1AA4 · La440.0 Hz
2EE4 · Mi329.6 Hz
3CC4 · Do261.6 Hz
4GG4 · Sol392.0 Hz
§ 2

Tuning your ukulele

Automatically with the microphone, or by ear: tap any note on the headstock to hear a real recorded reference.
  1. 1

    Allow microphone access and hold the ukulele near your device.

  2. 2

    Pluck the G string (the one closest to your chin) and let it ring.

  3. 3

    Tighten if the needle is to the left (flat), loosen if it's to the right (sharp), until it turns green.

  4. 4

    Repeat for C, E and A. New nylon strings stretch a lot, so expect to retune often for the first few days.

§ 3

Ukulele tunings

5 tunings, all free. Notes listed from the lowest string.
§ 4

Questions & troubleshooting

What are the notes of the ukulele strings?
Standard ukulele tuning is G C E A, starting from the string closest to your face. A popular way to remember it is “My Dog Has Fleas”.
Why is the G string higher than the C string?
Standard ukulele tuning is re-entrant: the G is tuned above middle C rather than below it. That's what gives the ukulele its bright, chimey sound. Low G tuning puts it an octave lower instead.
Why won't my ukulele stay in tune?
New nylon and fluorocarbon strings keep stretching for days. Tune up, gently pull each string away from the fretboard, retune, and repeat. It settles after a few days of playing.
§ 5

The T-1 range

One tuner, set up for every instrument.