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How to tune a Ukulele

Soprano, concert and tenor ukuleles use G–C–E–A with a high G (re-entrant). Low G, baritone (DGBE) and D tuning are included.

Notes

#NoteFrequency (A4 = 440)
1G4392.00 Hz
2C4261.63 Hz
3E4329.63 Hz
4A4440.00 Hz
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Step by step

  1. Allow microphone access when your browser asks (audio stays on your device).
  2. Play one note and let it ring. The tuner detects which string or note you are playing.
  3. Follow the needle: left means flat (tighten / raise), right means sharp (loosen / lower).
  4. When the note turns green you are within ±3 cents. Move on to the next one.

Pro tip

New nylon strings stretch for days; expect to retune often during the first week.

Frequent questions

Is this tuner free?

Yes. It runs in your browser with no download or account.

Is my audio recorded?

No. The sound is analysed on your device and never uploaded.

What is A4 = 440 Hz?

The reference pitch for the note A above middle C. Some orchestras use 442 Hz and early-music groups 415 Hz; you can change it.

Tune other instruments

Guitar Tuner

E2 · A2 · D3 · G3 · B3 · E4

Bass Tuner

E1 · A1 · D2 · G2

Violin Tuner

G3 · D4 · A4 · E5

Cello Tuner

C2 · G2 · D3 · A3

Banjo Tuner

G4 · D3 · G3 · B3 · D4

Flute Tuner

A4 · Bb4 · F4

Alto sax Tuner

C4 · F4 · Bb4

Trumpet Tuner

Bb3 · F4 · Bb4

Clarinet Tuner

Bb3 · F4 · Bb4

Timpani Tuner

D2 · G2 · C3 · E3

Drum kit Tuner

G2 · C3 · F3 · A#3

Handpan Tuner

D3 · A3 · Bb3 · C4 · D4 · E4