What size guitar does a child need?
Age charts are a starting point and a fit test is the answer. Both are here, and the fit test takes two minutes with a guitar in hand.
By Stephen V. · Writes Reed & Rosin · last verified
The short answer
As a starting point: ages 4-6 use a 1/4 size, 6-8 a 1/2, 8-11 a 3/4, and 11 and up a full size. Height matters more than age, and the definitive test is whether the child can reach the first fret with a relaxed shoulder and see over the body.
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Quick picks
| # | Product | Best for | Score | Price |
|---|---|---|---|---|
| 1 |  Yamaha JR1 FG Junior A 3/4-scale guitar built to the same standard as Yamaha's adult line rather than a toy with a brand on it. The right first acoustic for roughly ages 8 to 11, and it holds resale value. | Ages 8-11 on a first steel-string | 9.0/10 | $179.99View on Amazon #ad · price as of September 7, 2026 · how this is funded |
| 2 |  Fender FA-15 3/4 A 3/4-scale steel-string that ships with a gig bag, which matters more than it sounds — a guitar with a bag gets carried to lessons, and a guitar without one stays under the bed. | A first steel-string that travels to lessons | 8.4/10 | |
| 3 |  Squier Mini Stratocaster A genuine short-scale Stratocaster rather than a shrunken novelty: real pickups, real hardware, real Fender-family neck. The default first electric for anyone under about twelve. | First electric, roughly ages 7-12 | 9.1/10 | $199.99View on Amazon #ad · price as of September 7, 2026 · how this is funded |
| 4 |  Loog Mini 3-String Three strings instead of six, tuned like the top three of a guitar, so a four-year-old plays a real chord in an afternoon. It is a bridge to a guitar, not a guitar — and it is honest about that. | Ages 3-6, before a real guitar fits | 8.6/10 | $119.00View on Amazon #ad · price as of September 7, 2026 · how this is funded |
Scores are our own editorial fit rating from published specifications — the rubric is on our methodology page. They are not test results; we have not played these instruments.
The size chart
Guitar sizes are named as fractions but describe scale length — the distance from the nut to the bridge saddle — rather than any consistent physical proportion. A “3/4” guitar is not three-quarters the size of a full one.
| Size | Typical age | Typical height | Approx. scale length |
|---|---|---|---|
| 1/4 | 4-6 years | 3 ft 3 in - 3 ft 9 in | About 19 in / 48 cm |
| 1/2 | 6-8 years | 3 ft 9 in - 4 ft 3 in | About 21 in / 53 cm |
| 3/4 | 8-11 years | 4 ft 3 in - 4 ft 9 in | About 22-23 in / 57 cm |
| Full (4/4) | 11 years and up | 4 ft 9 in and above | 24.75-25.5 in / 63-65 cm |
Ranges overlap deliberately, and manufacturers are not consistent with each other. Two guitars both labeled 3/4 can differ by more than an inch of scale length, so check the published scale length on the listing rather than trusting the fraction.
The fit test, which beats the chart
If you can get the child and a guitar in the same room, do this instead of measuring anything.
- 1
Sit them down with the guitar on their leg
Seated, guitar body resting on the right thigh for a right-handed player, guitar held upright as it would be played rather than flat on the lap.
- 2
Check the fretting arm at the first fret
Ask them to put a finger on the first fret of the thickest string. Their left shoulder should stay relaxed and down. If the shoulder lifts or the body twists to reach, the guitar is too big.
- 3
Check they can see the fretboard
They should be able to look down and see the frets without leaning forward over the body. On an oversized guitar the body blocks the view and the child plays blind.
- 4
Check the strumming arm
The right forearm should rest naturally over the body edge with the hand landing near the soundhole. On too large a guitar the elbow sticks out and the wrist bends awkwardly.
- 5
Have them hold it for two minutes
Comfort at ten seconds and comfort at two minutes are different things. A guitar that is slightly too heavy or too deep will show itself here, before the money is spent.
If they are between sizes, go smaller
Every string teacher gives the same advice and for the same reason: a child on a slightly small instrument plays comfortably and develops good technique, while a child on a slightly large one develops tension that has to be unlearned later. The smaller guitar is also far cheaper to replace when they grow. Undersized beats oversized, every time.
The under-six question
Below about six, even a 1/4 guitar is often too much instrument, and the honest answer may be a different one entirely. A three-string instrument such as the Loog Mini is tuned like the top three guitar strings, so a real chord is reachable with one small hand and every shape learned transfers directly to a six-string later.
A ukulele is the other strong answer for this age. It is a real instrument with a full four strings, it is sized for small hands by design, and its chord shapes map onto guitar shapes. Neither of these is a consolation prize.
When they outgrow it
Watch for the fretting hand no longer needing to stretch for the fourth fret, and for the elbow sitting high over the body. Both mean the instrument is now small. This usually arrives with a growth spurt rather than gradually, which is why a child can be fine in June and cramped by September.
Fractional guitars resell reasonably well, better than fractional violins do, because the buyer pool is large and the instruments are simple. Keep the box.
The picks, in full
Every card below is written from the published specification and the manufacturer’s own documentation. We have not played these instruments — see how we work for exactly what that means and what we do instead.
Our top pick · Ages 8-11 on a first steel-string
Yamaha JR1 FG Junior
A 3/4-scale guitar built to the same standard as Yamaha's adult line rather than a toy with a brand on it. The right first acoustic for roughly ages 8 to 11, and it holds resale value.
What works
- 3/4 scale puts the first-position chords inside a child's reach
- Built as a real guitar, so it stays in tune and takes a setup
- Comes with a gig bag on most listings
What to know
- Shorter scale means lower string tension and a thinner voice
- A child who is already tall for their age will outgrow it fast
- Scale
- 3/4 (approx. 21 in / 540 mm)
- Top
- Spruce
- Suggested ages
- Roughly 8-11, measure rather than assume
#ad · price as of September 7, 2026 · how this is funded
Specs read from the manufacturer or retailer listing on 2026-09-07. Our fit score: 9.0/10.
Pick 2 · A first steel-string that travels to lessons
Fender FA-15 3/4
A 3/4-scale steel-string that ships with a gig bag, which matters more than it sounds — a guitar with a bag gets carried to lessons, and a guitar without one stays under the bed.
What works
- 3/4 scale with a gig bag included on the listing
- Two-year warranty published
- Steel strings prepare the fingers for a full-size guitar later
What to know
- Steel strings are harder on small fingertips than nylon
- Laminate construction — it will not open up the way a solid top does
- Scale
- 3/4
- Strings
- Steel
- Included
- Gig bag (per listing)
- Warranty
- 2 years (per listing)
Specs read from the manufacturer or retailer listing on 2026-09-07. Our fit score: 8.4/10.
Pick 3 · First electric, roughly ages 7-12
Squier Mini Stratocaster
A genuine short-scale Stratocaster rather than a shrunken novelty: real pickups, real hardware, real Fender-family neck. The default first electric for anyone under about twelve.
What works
- 22.75 in short scale is reachable for small hands and light on tension
- Three single-coil pickups and a five-way switch — the full Strat vocabulary
- Holds tuning better than anything else at this size
What to know
- No amplifier included — an electric guitar with no amp is a quiet disappointment
- Short scale is limiting once a player's hands grow
- Scale length
- 22.75 in (578 mm)
- Pickups
- Three single-coil
- Fingerboard
- Laurel
- Amp included
- Not published
#ad · price as of September 7, 2026 · how this is funded
Specs read from the manufacturer or retailer listing on 2026-09-07. Our fit score: 9.1/10.
Pick 4 · Ages 3-6, before a real guitar fits
Loog Mini 3-String
Three strings instead of six, tuned like the top three of a guitar, so a four-year-old plays a real chord in an afternoon. It is a bridge to a guitar, not a guitar — and it is honest about that.
What works
- Three strings mean a recognisable chord on day one, which is what keeps a small child going
- Chord shapes transfer directly to a six-string later
- Small and light enough for a preschooler to hold correctly
What to know
- It is not a guitar; the player will need a real one within a year or two
- Limited range — no bass strings at all
- Strings
- Three (guitar strings 1-3)
- Suggested ages
- 3 and up (per listing)
- App and lessons
- Included (per listing)
#ad · price as of September 7, 2026 · how this is funded
Specs read from the manufacturer or retailer listing on 2026-09-07. Our fit score: 8.6/10.
Questions people actually ask
What size guitar for a 4 year old?
A 1/4 size guitar is the smallest conventional size and suits most four- to six-year-olds. Below that, a three-string instrument such as a Loog, or a soprano ukulele, is often a better fit than a very small six-string guitar.
What size guitar for a 7 year old?
Most seven-year-olds fit a 1/2 size, and taller ones fit a 3/4. Run the fit test rather than relying on the age: the child should reach the first fret with a relaxed shoulder and be able to see the fretboard without leaning forward.
What age is a 3/4 size guitar for?
Roughly 8 to 11, or any child around 4 ft 3 in to 4 ft 9 in tall. Many smaller adults also find a 3/4 comfortable for travel, though it is not what a teacher or a tutorial will assume.
Should I buy a bigger guitar for my child to grow into?
No. A child on an oversized guitar cannot form clean chords and develops shoulder and wrist tension that has to be unlearned. The right size now produces faster progress, and fractional guitars resell reasonably well when outgrown.
Is a 3/4 guitar a real guitar?
Yes. It is tuned identically to a full-size guitar and every chord shape is the same. The only difference is the scale length, which makes the frets closer together and the strings slightly slacker at the same pitch.