What Size Guitar Should You Buy? (Kids, Teens & Adults Guide)

Choosing the right guitar size is one of the most important steps when buying a guitar. A appropriate size instrument makes playing more comfortable, helps build good technique, and keeps beginners motivated. Whether you’re buying for a child, teenager, or adult, here’s a short guide on how to find the right fit.

If you are new to this, it is important to know that guitars do come in different body sizes and scale lengths (the distance between the nut and the bridge). These are illustrated in the image that accompanies this blog. Smaller guitars are easier to hold and fret, especially for younger players or those with smaller hands. This is key as a guitar that is too big for a younger player will completely put them off. Their hands will not be able to stretch to play even the “easy” chords that their tutor/book/instruction video is showing them and they will give up. You may see sites recommending buying guitars for them to “grow into” like clothes. I don’t agree with this, when you are first learning guitar making your fingers go to the right places quickly is hard enough without making the stretches all but impossible.

What size guitar is suitable for an “x” year old is a common question in the shop. Here I can give age ranges and typical guitar sizes that are suitable, but obviously it is going to depend on the actual size of the child. A larger 5-year-old may find a ¼ size too small in the same way that a small six-year-old might prefer one. However, as a starting point, for young children (ages 2–5), a 1/4-size guitar is usually the best choice. These are lightweight, compact, and designed for small arms and fingers. Moving up, ages 5–8 typically do well with a 1/2-size guitar, offering a bit more room while still being manageable.

For older children and young teens (ages 8–13), a 3/4-size guitar is often ideal. This is one of the most popular “starter” sizes because it strikes a balance between comfort and sound quality. Many adults with smaller frames also prefer 3/4-size guitars for their portability and ease of use. Often guitars sold as “travel guitars” fall into this size range and can be a good choice for those looking for products of this size from the quality brands.

For teenagers (13+) and adults, a full-size guitar (4/4) is generally recommended. These produce the fullest tone and are standard for most players. However, “full-size” doesn’t mean one-size-fits-all. There are a still a range of body shapes to consider e.g. dreadnought, concert, and parlour. These can still feel very different for even an adult learner (see my “Imagmusings” blog on acoustic guitar types).

The goal is to find a guitar that allows the player to sit or stand naturally without straining to reach around the body or along the neck. Comfort should always come before sound. A guitar that feels too big can discourage practice, while a well-fitted instrument makes learning enjoyable. If possible, try sitting the child (of if it is for you yourself) with the guitar. Her/his/your strumming arm should rest easily over the body, and your/his/her fretting hand should reach the first few frets without stretching too much.

When buying a first guitar, particularly for a child, another thing to consider is the type of strings the guitar is fitted with. Classical guitars with nylon strings are often recommended for younger beginners because they’re softer on the fingers. Steel-string acoustics and electric guitars require a bit more finger strength but of course sound quite different.

Ultimately, the “right” guitar for someone is the one that feels comfortable and inspires them to play. It is here that actually visiting a guitar shop, such as IMAG Music and trying a few sizes in person can make all the difference. A good fit sets the foundation, it encourages practice and makes for a much smoother and more enjoyable musical journey.

Malcolm Clench

13th May 2026