Ukulele Tuning Guide
Standard Ukulele Tuning (C6)
Standard ukulele tuning is called C6 or "My Dog Has Fleas" tuning (G-C-E-A). From string 4 to 1: G4 (392 Hz), C4 (261.63 Hz), E4 (329.63 Hz), A4 (440 Hz). Notice the 4th string (G) is tuned higher than the 3rd string (C) — this is called re-entrant tuning, which gives the ukulele its distinctive bright sound.
Ukulele Sizes and Tunings
| Ukulele Type | Standard Tuning | Notes |
|---|---|---|
| Soprano | G-C-E-A (re-entrant) | Most common, traditional ukulele sound |
| Concert | G-C-E-A (re-entrant) | Slightly larger, fuller tone than soprano |
| Tenor | G-C-E-A (can use Low-G) | Deeper tone, often used with linear Low-G tuning |
| Baritone | D-G-B-E | Like top 4 guitar strings, different tuning system |
Re-entrant vs Low-G Tuning
Re-entrant tuning (standard G-C-E-A) has the G string tuned high, creating the ukulele's signature sound. Low-G tuning uses a thicker G string tuned one octave lower (G3 at 196 Hz instead of G4 at 392 Hz), providing more bass range and a guitar-like feel. Low-G is popular for fingerstyle and solo arrangements on tenor ukuleles.
Ukulele Tuning Tips
- Tune up, not down – Always approach the target pitch from below to prevent string slippage
- New strings take time – Nylon and fluorocarbon strings need 2-3 days to settle and hold tuning
- Stretch your strings – Gently pull each string away from the fretboard after tuning to speed up settling
- Tune before every session – Ukuleles are sensitive to temperature and humidity changes
- Check intonation at 12th fret – The fretted 12th fret should match the harmonic; adjust saddle if not
Common Ukulele Tuning Problems
- Won't stay in tune – Usually caused by new strings or improperly wound strings on tuning pegs
- Buzzing strings – Often due to low action or uneven frets, not a tuning issue
- Sharp at higher frets – Indicates poor intonation; saddle adjustment needed
- G string sounds wrong – Remember it should sound higher than the C string in re-entrant tuning
Alternate Ukulele Tunings
Beyond standard C6 tuning, try D tuning (A-D-F#-B) for a brighter sound, or English tuning (A-D-F#-B with Low-A) for more range. Slack-key and open tunings are also popular in Hawaiian music. Each tuning changes chord shapes and the ukulele's tonal character.