The word tuner covers two very different things for a ukulele. Electronic tuners clip on or sit in the soundhole and show whether a string is flat or sharp. Tuning pegs, also called machine heads, are the parts you turn to change the pitch, and they can be swapped on many ukuleles.
The six products below include three electronic tuners and three sets of replacement pegs. Details come from each listing page, and claims about accuracy and gear ratio are the makers’ own. We have not used these products ourselves, so match peg hole size and fit to your own instrument before buying.
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What to Look For
| Feature | Why it matters |
|---|---|
| Type | A clip-on or soundhole unit reads pitch; pegs hold it |
| Power | Rechargeable USB-C or a replaceable coin cell |
| Modes | A ukulele mode or chromatic mode suits G C E A tuning |
| Peg fit | Hole size and a 2 plus 2 or 4 in line layout must match the headstock |
Specs at a Glance
| Product | Type | Key listing details | Power or fit |
|---|---|---|---|
| D’Addario Soundhole Tuner | Soundhole tuner | Piezo transducer; calibration 410 to 480 Hz; backlit LCD | Non-marring mounting clip; 4 x 6 x 1 in |
| Kala Klipz | Clip-on | Chromatic, ukulele, guitar, bass and violin modes; plus or minus 1 cent | Built-in rechargeable battery; USB-C cable included |
| Aroma AT-105 | Clip-on | Five modes; color screen; A4 range 430 to 450 Hz | USB Type C; 2 year warranty |
| Grover 9NB Sta-Tite | Replacement pegs | 2 plus 2 configuration; 14:1 gear ratio; set of 4 | Nickel with black buttons |
| Graph Tech Ratio | Replacement pegs | 6:1 ratio; set of 4; model PRU-4004-BK | Black; manual |
| KAISH K959 | Replacement pegs | Set of 4; nickel with black buttons | Fits 8 mm (5/16 in) holes |
The 6 Best Ukulele Tuners
1. D’Addario Soundhole Tuner
A tuner made for ukulele that holds in the soundhole with a non-marring universal mounting clip. It uses a piezo transducer to sense vibration, has a tri-color reversible backlit LCD and lists a calibration range of 410 to 480 Hz.
Suits: players who like the screen near the body. Strengths: a backlit display and adjustable calibration. Weaknesses: depends on a soundhole being present. Skip it if you play a solid-body model or prefer a headstock clip.
View D’Addario Accessories Ukulele Soundhole Tuner on Amazon
2. Kala Klipz Clip-On
A rechargeable clip-on that lists chromatic, ukulele, guitar, bass and violin modes, a vibration sensor and a tolerance of plus or minus 1 cent. The page includes a USB-C charging cable and a built-in lithium polymer battery. It is shown here in a tie-dye finish.
Suits: a dedicated ukulele mode. Strengths: USB-C charging and a vibration sensor. Weaknesses: very few spec rows on the page. Skip it if you want a coin-cell tuner.
3. Aroma AT-105 Clip-On
A rechargeable clip-on with a color screen, a piezo sensor that the maker says detects plus or minus 0.5 cents, and five modes: guitar, bass, violin, ukulele and chromatic. The A4 reference can be set from 430 to 450 Hz. Charging is by USB Type C.
Suits: a screen with color feedback. Strengths: five modes and a 2 year warranty. Weaknesses: the title lists many instruments, not just ukulele. Skip it if you need a wider A4 range.
4. Grover 9NB Sta-Tite
A set of four ukulele tuning machine heads in a 2 plus 2 configuration with a 14:1 gear ratio, finished in nickel with black buttons. The listing text is short, so confirm hole size and mounting before ordering.
Suits: replacing worn pegs. Strengths: a 14:1 ratio and a full set. Weaknesses: little detail on fit. Skip it if your ukulele needs friction pegs.
View Grover 9NB Sta-Tite Ukulele Tuners – Nickel W Black Buttons on Amazon
5. Graph Tech Ratio
A four piece set of ukulele machine heads with a 6:1 ratio, model PRU-4004-BK, in black. The listing calls the set Ratio Tune-a-Lele and shows manual operation. Some material fields on the page look generic, so we do not repeat them.
Suits: a black hardware look. Strengths: a complete four piece set. Weaknesses: a lower gear ratio than the Grover. Skip it if you want nickel.
View Graph Tech Ratio Ukulele Tuner 6:1 (4 Piece Set) on Amazon
6. KAISH Nickel Precision Set
A set of four nickel tuning pegs with black buttons, listed as fitting most models with 8 mm (5/16 in) holes and usable on other instruments with the same hole size. The weight is listed as 1.28 ounces.
Suits: a drop-in swap on 8 mm holes. Strengths: a stated hole size. Weaknesses: no gear ratio on the page. Skip it if your holes are a different size.
View KAISH Set of 4 Nickel Precision Ukulele Tuners Tuning Keys Pegs Machine Heads on Amazon
Setup Notes
- Tune up to pitch, not down, so the string settles.
- Set the tuner to ukulele or chromatic mode before plucking.
- Measure peg holes before ordering replacement machine heads.
- Check the layout: 2 plus 2 and 4 in line are not interchangeable.
Mistakes to Avoid
- Buying pegs when you wanted a tuner, or the reverse.
- Ignoring the hole size on replacement pegs.
- Leaving a rechargeable unit uncharged before a gig.
- Tuning in a loud room without a vibration sensor.
Ukulele Tuners FAQ
Which ones have a ukulele mode?
The Kala Klipz and Aroma AT-105 list a ukulele mode among several. The D’Addario unit is made for ukulele.
Which ones are replacement pegs?
The Grover 9NB, Graph Tech Ratio and KAISH sets are machine heads, not electronic tuners.
The Short Version
For a soundhole display, the D’Addario. For a rechargeable ukulele mode, the Kala Klipz. For five modes and a color screen, the Aroma AT-105. For a 14:1 peg set, the Grover 9NB. For black pegs, the Graph Tech Ratio. For 8 mm holes, the KAISH set.
