Violin Sizes Explained
Updated Nov 10, 2026 · By 
Jonah Mercer · Editorial policy
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Violin sizes are named as fractions of a violin: 4/4 is full size, and 3/4, 1/2 and 1/4 are smaller sizes. The right size is the one the player can hold with the scroll in the palm while the arm reaches the pegbox, so measure the arm from neck to wrist and match the measurement to the size names.
What the size names mean
Violin sizes use fractions of a full-size violin. A 4/4 violin is the full size, and 3/4, 1/2 and 1/4 violins are smaller instruments built to the same shape. The fraction names the size of the instrument, so a 3/4 violin is smaller than a 4/4 violin, and a 1/2 violin is smaller than a 3/4 violin. The string count stays the same across sizes: every violin here has 4 strings. Size names describe the instrument, not the player, so the measurement of the player decides which fraction fits.
Measure the arm to find the size
Hold the left arm out to the side with the palm facing up. Measure from the neck to the wrist and use that length to choose among the size names. A longer arm points to a larger fraction and a shorter arm points to a smaller fraction. Then hold the violin in playing position: the scroll should rest in the palm while the arm reaches the pegbox without stretching. If the scroll sits past the palm, the violin is too large; if the scroll falls short of the palm, the violin is too small.
What changes between sizes
Every size follows the same shape with 4 strings, a bow, a bridge and a fingerboard. What changes is the size of the body and the length of the neck, so the reach of the bow arm and the spacing under the fingers change with the fraction. A smaller violin sits closer to the body and asks for a shorter reach, while a full-size violin asks for a longer reach. The choice is about fit: a smaller size is a violin built for a shorter arm.
Check the fit before you buy
Hold the violin in playing position and check the scroll against the palm. The scroll should rest in the palm while the arm reaches the pegbox, and the bow arm should move freely. If the scroll passes the palm, move to the next larger fraction. If the scroll falls short of the palm, move to the next smaller fraction. Check the fit again when the arm length changes, since the measurement that sets the size can change over time. A good fit lets the player hold the violin steady and reach the pegbox without stretching.
Care for the violin and the bow
The Ktaxon kit's care notes say to keep the violin in a dry place, keep it from getting wet, loosen the bow after use and avoid overtightening the bow. The Mendini kits note that the bridge arrives unset and that tuning pegs must be pushed in when adjusting, so ask a repair shop to set the bridge. Wipe the violin with a soft dry cloth after playing, and store the violin in its case.
What you need
Mendini by Cecilio 3/4 Violin Set
A 3/4-size violin kit with a solid wood body, a hard case, a bow, rosin, a shoulder rest, a bridge and extra strings.
- Solid wood body
- Case or gig bag included
- Bow included
- Rosin included
- Size: 3/4
- 1 year warranty stated
Mendini By Cecilio 4/4 Violin For Beginners
A 4/4-size violin kit with a solid wood body, a hard case, two bows, a tuner, a shoulder rest, rosin, a bridge and extra strings.
- Solid wood body
- Case or gig bag included
- Bow included
- Rosin included
- Tuner included
- Size: 4/4
- 1 year warranty stated
Ktaxon Violin for Beginners
A 4/4 violin kit with a solid wood body, a hard case, a bow and rosin, in a natural wood finish.
- Solid wood body
- Case or gig bag included
- Bow included
- Rosin included
- Size: 4/4
- 1-year warranty stated
Eastar 4/4 Violin Set Full Size Fiddle
A 4/4 violin kit with two bows, a clip-on tuner, a shoulder rest, rosin, a bridge and extra strings.
- Case or gig bag included
- Bow included
- Rosin included
- Tuner included
- Size: 4/4
- 12-month warranty stated
These come from our ranked list Best Mini Violin, which compares them spec by spec.
Frequently asked questions
What size violin is 4/4?
The Mendini 4/4 kit, the Ktaxon 4/4 kit and the Eastar 4/4 kit are all full-size violins, while the Mendini 3/4 kit is a smaller size. Measure the arm from neck to wrist and match the measurement to the size names.
How do I measure for a violin size?
Hold the left arm out to the side with the palm facing up and measure from the neck to the wrist. Use that length to choose among the size names, then check the fit by holding the violin in playing position with the scroll in the palm. If the scroll passes the palm, move to the next larger fraction.
What comes in a beginner violin kit?
The kits here include a violin, a bow, rosin and a case. The Mendini kits add a shoulder rest, a bridge and extra strings, the Eastar kit adds two bows and a clip-on tuner, and the Mendini 4/4 kit adds a tuner. Check the kit contents before ordering, since the parts differ from kit to kit.
Ranked violins lists
More how-to guides
Product details come from each Amazon listing and can change. Check the listing before you buy.