How to Choose the Right Violin Size: Chart by Age, Height & Arm Length

A violin that is the wrong size teaches the wrong technique. Too large and the left arm over-extends, the shoulder lifts and the hand tightens; too small and the player loses tone and eventually outgrows the instrument in months. Sizing is the first thing we check when a parent brings a child to the bench.

The quick answer: violin sizes by arm length

Measure from the base of the neck, along the outstretched left arm, to the centre of the palm — not the fingertips. Then read across:

• Under 43 cm (17") — 1/16 violin, typically ages 3-4
• 43-47 cm (17-18.5") — 1/10 violin, typically ages 4-5
• 47-51 cm (18.5-20") — 1/8 violin, typically ages 5-6
• 51-56 cm (20-22") — 1/4 violin, typically ages 6-8
• 56-60 cm (22-23.5") — 1/2 violin, typically ages 8-10
• 60-62 cm (23.5-24.5") — 3/4 violin, typically ages 10-12
• 62 cm and above (24.5"+) — 4/4 full-size violin, typically ages 11 and up

Age ranges are a rough guide only. Children of the same age routinely differ by two full sizes, so always measure the arm rather than reading from the birthday.

How to measure at home

Have the child stand relaxed and extend the left arm straight out to the side, palm up, as though holding a violin scroll. Measure from the side of the neck to the middle of the palm. Do not stretch the arm, do not measure to the fingertips, and take the measurement twice.

Then check it against the instrument: the child should hold the violin in playing position and curl the left hand comfortably around the scroll with a slight bend in the elbow. A locked, straight elbow means the violin is too big.

Signs the violin is the wrong size

• The left shoulder rises to hold the instrument up.
• The elbow is fully straight when reaching the scroll.
• The child's head tilts heavily to keep the violin in place.
• The hand cannot reach fourth finger in first position without shifting the whole arm.
• The child tires or complains of aching within a few minutes.

When to move up a size

Growing children typically change size every 12 to 24 months until they reach full size. Move up when the measurement crosses into the next band and the teacher agrees the technique will not suffer. Do not size up early to save money — a year on an oversized violin causes tension that takes far longer than a year to unlearn.

Adults and full size

Almost all adults play 4/4, including small adults. In the rare case of very short arms or a hand injury, a 7/8 violin (sometimes called a lady's violin) is worth trying — it is a genuine size, not a student compromise, and good ones exist.

Size is only half the job

A correctly sized violin that has not been set up will still be hard to play. Bridge height, string height at the nut, peg fit and a workable bow matter just as much as the body length. Our beginner violin guide explains what a proper setup includes, and any luthier in our directory can check both size and setup in one visit.