Ukulele Tuner
Standard ukulele tuning is G – C – E – A, from the string closest to your face to the one closest to the floor. It is the same for soprano, concert and tenor ukuleles. Press Start tuner and play each string.
Your browser will ask to use the microphone. Choose Allow.
✓ All strings in tune
Tap a string to hear it and tune only that string. Audio is analysed on this device and never uploaded. How it works →
- What it does
- Hears each ukulele string, shows which one, its note, Hz and cents
- What it does not do
- Record or upload audio · detect chords
- Reference pitch
- A4 = 440 Hz, adjustable 415–466 Hz
- Tested with
- 58 studio recordings of 11 instruments (right note on about 95% of frames at normal volume) and test tones from B0 to C6
- Made by
- The Appcellent team
- Updated
- November 2026
Tuner not hearing you?
- Allow the microphone. If you blocked it: in Chrome or Edge, click the icon left of the address bar → Microphone → Allow, then reload. In Safari on iPhone, tap aA → Website Settings → Microphone → Allow. In Firefox, click the crossed-out microphone in the address bar. On a Mac, also check System Settings → Privacy & Security → Microphone for your browser.
- Open the page in Safari or Chrome. In-app browsers (Instagram, Facebook, TikTok) often block the microphone.
- Play one note at a time, louder. Hold your phone or laptop close to the instrument and let the string ring. A quiet room helps.
- Wrong octave or jumping notes? Let the attack fade for a moment — the reading settles once the note is steady.
- No microphone at all? Tap a string button to hear its note and tune by ear.
Ukulele string notes and frequencies
Standard ukulele tuning is G4 (392.00 Hz), C4 (261.63 Hz), E4 (329.63 Hz) and A4 (440.00 Hz), from the lowest string to the highest (A4 = 440 Hz).
| String | Note | Frequency |
|---|---|---|
| 4 | G4 | 392.00 Hz |
| 3 | C4 | 261.63 Hz |
| 2 | E4 | 329.63 Hz |
| 1 | A4 | 440.00 Hz |
How to tune your ukulele
- Press Start tuner and allow the microphone.
- Hold the ukulele normally and pluck the top string (G). The tuner picks the string for you.
- Turn the tuning peg until the needle sits in the middle and the note turns green.
- Tune C, E and A the same way, then check all four again.
Ukulele tuning: why the G string is high
Standard ukulele tuning is re-entrant: the G string is tuned higher than the C next to it. That gives the ukulele its bright, sweet sound. The well-known phrase “My Dog Has Fleas” follows the four notes G, C, E, A.
Low G and baritone ukulele tuning
Low G tuning drops the G string one octave (G3) for a fuller, guitar-like bass. Baritone ukuleles are tuned D – G – B – E, the same as the four highest strings of a guitar. Older songbooks sometimes use D tuning (A – D – F♯ – B), one whole step higher than standard. Choose any of them in the tuning menu.
Tips for tuning a ukulele
- Nylon strings stretch a lot when new. Expect to retune often during the first week.
- Tune up to pitch rather than down, so the string holds its tension.
- Room temperature and humidity change the tuning, so check before every session.
Low G (G C E A)
| String | Note | Frequency |
|---|---|---|
| 4 | G3 | 196.00 Hz |
| 3 | C4 | 261.63 Hz |
| 2 | E4 | 329.63 Hz |
| 1 | A4 | 440.00 Hz |
Baritone (D G B E)
| String | Note | Frequency |
|---|---|---|
| 4 | D3 | 146.83 Hz |
| 3 | G3 | 196.00 Hz |
| 2 | B3 | 246.94 Hz |
| 1 | E4 | 329.63 Hz |
D tuning (A D F♯ B)
| String | Note | Frequency |
|---|---|---|
| 4 | A4 | 440.00 Hz |
| 3 | D4 | 293.66 Hz |
| 2 | F♯4 | 369.99 Hz |
| 1 | B4 | 493.88 Hz |