Online Ukulele Tuner
Click a string to hear the reference pitch. Match your ukulele string to the sound.
Standard Tuning (GCEA)
How to Tune Your Ukulele
- 1 Click a string button to hear the reference pitch
- 2 Pluck the corresponding string on your ukulele
- 3 Turn the tuning peg until the pitches match
- 4 If your string sounds lower, tighten it. If higher, loosen it.
Tuning Tips
- New strings stretch — retune frequently for the first few days
- Temperature changes affect tuning — check before playing
- Always tune up to the note, not down — this helps strings stay in tune
About This Free Online Ukulele Tuner
Our free online ukulele tuner helps you get your instrument in perfect pitch quickly and easily. Whether you're a beginner learning your first chords or an experienced player preparing for a performance, accurate tuning is essential for great sound.
This tuner plays reference tones for standard GCEA tuning — the most common tuning for soprano, concert, and tenor ukuleles. Simply click any string button to hear the correct pitch, then adjust your ukulele's tuning pegs until the sounds match.
Understanding Standard Ukulele Tuning (GCEA)
Standard ukulele tuning uses the notes G-C-E-A, starting from the string closest to your face when holding the ukulele. The G string is tuned to G4 (392 Hz), which is actually higher than the C string below it — this is called "reentrant tuning" and gives the ukulele its characteristic bright, cheerful sound.
- G string (4th): 392 Hz — the highest-pitched string in standard tuning
- C string (3rd): 261.63 Hz — the lowest note, middle C on a piano
- E string (2nd): 329.63 Hz — E above middle C
- A string (1st): 440 Hz — concert pitch A, the universal tuning reference
Why Proper Tuning Matters
A well-tuned ukulele sounds better, helps you develop good ear training, and makes playing with others possible. Out-of-tune strings can make even simple chords sound unpleasant and make it harder to learn songs by ear. Regular tuning also helps you notice when strings are wearing out and need replacement.
Works With All Ukulele Sizes
This tuner works for soprano, concert, and tenor ukuleles, which all use standard GCEA tuning. Baritone ukuleles use different tuning (DGBE, like the highest four guitar strings) and require a different reference. Our tuner uses Web Audio API technology — no downloads or installations required, and it works on any modern browser.