Cello Size Chart | Cello Sizing Guide for Fractional Instruments by Age

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Cello Size Chart

Finding the Correct Cello Size

With children beginning to play stringed instruments from a very young age, finding the right size cello for a growing child or adolescent is extremely important. Arm length, hand size, and height greatly affect one's ability to learn proper technique and muscle memory. Also, when playing a larger instrument such as the cello, comfortable playability is key.

Below is a helpful cello sizing guide. Please call us at 1-800-779-0242 and we can help you find the right instrument. Sizing consultations are always complementary!

Tips When Trying Out a Cello

When trying out a cello, be sure to

  • Sit up straight with good posture.
  • Sit on a chair that is a comfortable height — not too low or too high. 
  • Plant feet firmly on the floor with the cello between your knees.
  • Extend the endpin to a length that will bring the bottom of the bouts (the rounded edges of the lower half of the cello) to where they touch the insides of the knees. Then see if the pegs are at the height of the left ear.
  • If the cello feels too large and the fingers overextending in first position, choose the smaller size. 

General Age Guidelines

Note that some age ranges overlap, taking into consideration that players may be shorter or taller for their age.

Age Cello Size*
3–4 1/10
4–6 1/8 
5–7 1/4 
7–11 1/2 
9–15 3/4 
15 and up 4/4 (Full Size) 

General Height, Arm Length, and Finger Span Guidelines

Measure height while standing upright with good posture.

Measure arm length from the shoulder joint to the tip of the middle finger.

Measure finger span by extending the fingers as if playing in first position, then measuring from the tip of the index finger to the tip of the pinky.

Height Arm Length Finger Span Cello Size*
3' up to 16" 2.5"-3" 1/10
3'-3'6" 16"–18" 3" 1/8
3'6"–4' 18"–20" 3"–4" 1/4
4'–4'6" 20"–22" 4"–5" 1/2
4'6"–5' 22"–24" 5"–6" 3/4
5' and up 24" and up 6" and up 4/4

*The following are general and approximate guidelines. For proper fitting for size, students should consult directly with their private instructor or an experienced cellist.