Online Ukulele Tuner
GCEA, low-G and baritone tunings — microphone tuner, no app.
Microphone off
Tap a string name to hear its reference pitch.
Free online ukulele tuner — standard GCEA
Enable the microphone, pick your tuning and play one string at a time. The matching string lights up, and the meter shows how many cents sharp or flat you are. Nylon strings stretch a great deal when new, so expect to retune several times in the first week and again whenever the room temperature changes.
Ukulele string frequencies
| Note | Frequency (Hz) | MIDI |
|---|---|---|
| G4 | 392.00 | 67 |
| C4 | 261.63 | 60 |
| E4 | 329.63 | 64 |
| A4 | 440.00 | 69 |
| G3 | 196.00 | 55 |
| D3 | 146.83 | 50 |
| B3 | 246.94 | 59 |
In re-entrant tuning the fourth string G4 at 392.00 Hz sits above the third string C4 at 261.63 Hz. Low-G swaps it for G3 at 196.00 Hz, an octave down.
Once you are in tune, keep time with the online metronome.
Frequently asked questions
What is standard ukulele tuning?
G C E A, from the string nearest your face to the one nearest the floor. On soprano, concert and tenor ukuleles the G is usually re-entrant, meaning it is tuned above the C rather than below it.
What is the difference between high-G and low-G?
High-G puts the fourth string at G4, above middle C, which gives the bright re-entrant sound most people associate with the instrument. Low-G drops it an octave to G3 for a wider range and a fuller bass, and needs a string made for it.
Does a baritone ukulele use the same tuning?
No. Baritone ukuleles are tuned D G B E, the same as the top four strings of a guitar. Select Baritone DGBE in the tuning menu.