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How to tune a ukulele

Before any chord sounds right, your four strings need to land on G C E A. Here’s exactly what that means, how to get there by ear or with a tuner, and why a brand-new ukulele seems to drift out of tune every five minutes (it’s normal — and it stops).

The standard tuning: G C E A

Hold the ukulele in playing position and look down at the strings. From the one nearest your face to the one nearest the floor, they are tuned:

Standard soprano / concert / tenor ukulele tuning
StringNotePitchNotes
4th (top, nearest your face)GG4 (~392 Hz)The re-entrant string — tuned high, not low
3rdCC4 (~262 Hz)The lowest-pitched string; the thickest
2ndEE4 (~330 Hz)
1st (bottom, nearest the floor)AA4 (440 Hz)The highest, brightest string

A common way to remember the order is the little phrase “Good Chords Easily Achieved.”

The re-entrant quirk. Unlike a guitar, a standard ukulele’s strings don’t run low-to-high in pitch. That top G is tuned higher than the C and E next to it — the strings go high, low, medium, high. That “re-entrant” G is exactly what gives the ukulele its bright, jangly, instantly-recognisable voice. If yours sounds deeper and more guitar-like, you may have a low-G set.

Tuning by ear from a reference

The most reliable way to start: play a known-correct tone for each string and turn the peg until the string matches it. Tighten the string to raise the pitch, loosen it to lower it — and creep up to the note rather than down, so the string settles under tension and holds.

  1. Play the reference tone for a string.
  2. Pluck the string and listen. As the two pitches get close you’ll hear a slow “wobble” (beating) that slows down as you near the note and vanishes when they match.
  3. Move to the next string. When all four are done, go back and check the first — tuning one string changes the neck tension slightly and can nudge the others.

The lele tuner does exactly this. The practice app plays a clean reference tone for each of G, C, E and A — tap a string, match it by ear, repeat. No microphone or sign-up; it runs entirely in your browser.

Open the tuner →

Using a clip-on or app tuner

A clip-on chromatic tuner clamps to the headstock and reads the string’s vibration, so it works even in a noisy room. Pluck a string and the display shows the note it hears:

One thing to watch: a chromatic tuner will happily confirm any note, so double-check you’re landing on the right letter for each string, not a neighbour a semitone away.

Relative tuning (no reference handy)

If you only get one string in tune — say the C from a piano’s middle C — you can tune the rest to the instrument itself:

It won’t guarantee you’re at concert pitch, but the ukulele will be in tune with itself, which is all you need to play alone.

Why won’t it stay in tune?

Almost always: new strings. Fresh nylon or fluorocarbon strings stretch a great deal for the first few days, so the pitch keeps sagging flat.

Other tunings worth knowing

Common alternatives to standard re-entrant GCEA
TuningStringsWhat it’s for
Low-GG C E A (low G)Same notes, but the G is an octave lower — fuller, more guitar-like range. Just swap the single G string.
D tuningA D F# BAn older soprano tuning, a whole step up. Brighter and a touch louder; common in vintage songbooks.
BaritoneD G B EThe bigger baritone ukulele — same as a guitar’s top four strings. The chord shapes on this page won’t match it.

Unless you have a reason to do otherwise, start with standard GCEA — it’s what almost every chart, song and lesson assumes, including the chord chart here.

Tuned up? Here’s where to go next.