Open G Ukulele Tuner
Tuner
Ukulele Open G (G B D G) • 4 strings • 440 Hz
Detected
Target
196.0 Hz
Select String
Ready to tune?
Click "Start Listening" and select a string to tune. Auto-detect is assist-only and works best when the string is already close to pitch.
Tune the fourth through first strings to G3 B3 D4 G4. The pitches rise in order and form a G major chord. Fit a proper low-G string for G3; a normal high-G string tuned down an octave will be too slack.
Note Layout
Notation
G3 B3 D4 G4
How to Tune
Click "Start Listening"
Allow microphone access when prompted.
Play Each String
Auto-detect will find the string, or click to select manually.
Adjust Until Green
Center the needle and watch for the green "In Tune" indicator.
Tune Open G cleanly
Verify that the fourth string is built for G3
Let the low note settle before reading the tuner
Mute neighboring strings to avoid sympathetic G notes
Recheck the full G3-to-G4 octave after tuning
About Open G ukulele tuning
History & context
Open G spans a full octave from G3 to G4. The linear range supports bass-to-melody runs while the doubled root keeps G ringing underneath.