Hobbies Playing Music Finding the Right Size Cello Share PINTEREST Email Print Stephen Simpson / Iconica / Getty Images Playing Music Music Education Music Lessons Basics Music History Music Theory Playing Guitar Playing Piano Home Recording By Espie Estrella Espie Estrella is a lyricist, songwriter, and member of the Nashville Songwriters Association International. our editorial process Espie Estrella Updated February 04, 2019 Finding the right sized cello for you or your child doesn't have to be tricky. There are various sizes of cellos available, to fit the size of most potential players. Whether you're renting a cello or buying a new or used one, be sure to look for one that is the right size for your shape. How Are Cellos Sized? Cellos are sized by the length of the back, from the full-sized cello with a back length of 30 inches or more intended for adults five foot tall or taller, to 1/8 cellos sized for the body lengths of children between 4 and 6 years old. Bear in mind that different manufacturers make cello sizes at slightly different lengths, but they will fall within a few inches. If you fall between two different sizes, you’ll likely be more comfortable with the smaller instrument. The best guideline is to visit a music store to try one out, but the following table should help you get within a good range. By Your Age: 1/8 size—4 to 6 years old1/4 size—5 to 7 years old1/2 size—7 to 11 years old3/4 size—11 to 15 years old4/4 size—15 and above By Your Height: 1/8 to 1/4 size—below 4 feet1/2 size—4 to 4 1/2 feet3/4 size—4 1/2 to 5 feet4/4 size—5 feet and above By the Cello's Back Length: 1/8 size—17.75 to 20 inches1/4 size—20 to 23 inches1/2 size—23 to 26 inches3/4 size—26 to 27.25 inches7/8 size—27.25 to 30 inches4/4 size—30 inches and above How a Cello Should Fit Your Body When you're in the music store, pick the size that comes closest to your best fit. Find a straight chair and sit up straight: be sure your feet are touching the floor. Set the endpin of the cello to around 12 inches in length. Let the cello rest against your chest at about a 45-degree angle. The top of the cello must rest at the center of your chest, and the C string peg must be near your left ear.