A guitar that’s too big makes learning harder than it needs to be: your arm barely reaches over the body, your fingers can’t stretch to the third fret, and your shoulder aches after a few minutes. That’s why guitars come in several sizes. The main difference is the scale length – the length of the vibrating string from the nut to the bridge.
Sizes at a glance
These are rough guidelines only. Body height – especially arm length – matters more than age alone.
- 1/4 guitar (scale about 48 cm): roughly ages 4 to 6, up to about 115 cm tall
- 1/2 guitar (about 53 cm): roughly ages 6 to 8, about 115 to 130 cm
- 3/4 guitar (about 58 cm): roughly ages 8 to 11, about 130 to 145 cm
- 7/8 guitar (about 62 cm): roughly ages 11 to 13, and adults with small hands
- 4/4 guitar (about 65 cm): from around 150 to 155 cm tall
Nylon or steel?
For children, a classical guitar with nylon strings is usually the best choice. Nylon strings are softer and press less into the fingertips. The neck is a little wider, giving the fingers more room between the strings. Most music schools and school classes start on classical guitars.
A steel-string acoustic sounds brighter and louder but needs more finger strength. It’s a better fit once a child has some experience or really wants that sound. Important: never put steel strings on a classical guitar – its neck isn’t built for that tension.
What to look for
- The strings sit close to the fretboard – high action makes every chord a struggle.
- The guitar stays in tune for several days.
- The fret ends don’t stick out at the edges of the neck.
- A padded bag protects it on the way to school.
Once the guitar has arrived, start with how to hold it and tuning.