The Ultimate Sizing Guide for String Instruments

This sizing guide is intended to give you a good idea of what instrument size you or your student should look for. Please consider that this guide is based on our best estimates, and we always recommend that you consult with us or your teacher before purchasing or renting.

At Musical String Usa we care a lot about how our instruments are set up for them to sound their best. Equally important to the instrument itself, is how your instrument fits you. If you play on the wrong size violin, it might lead to pain, fatigue and injury. It also makes it harder to play. Thus, we have put together this guide for you.

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Call us at (646) 918-5066 or send us an email at support@musicalstringsusa.com. An expert can answer your questions regarding the instruments and its accessories.

Violin Sizing

The violin is available in various sizes, each designed to accommodate the physical characteristics of players at different ages and stages of growth. Proper sizing is critical, as playing an instrument that is too large or too small can lead to discomfort and hinder progress.

Sizing Based on Arm Length:

1/16 Size: Suitable for young children with an arm length of 14 inches or less. This size is typically recommended for children aged 3 and under.
1/10 Size: Designed for players with an arm length of 14-15 inches, usually fitting children aged 3-4 years.
1/8 Size: Ideal for children with an arm length of 15-17 inches, generally aged 4-5 years.
1/4 Size: Appropriate for players with an arm length of 17-20 inches, typically aged 5-6 years.
1/2 Size: Fits children with an arm length of 20-22 inches, usually aged 6-8 years.
3/4 Size: Suitable for players with an arm length of 22-23.5 inches, typically aged 9-11 years.
4/4 (Full) Size: The full-size violin is best for players with an arm length of 23.5 inches or more, usually aged 12 and above.

How to Measure for a Violin:

Extend the left arm fully outward with the palm facing up.
Measure from the base of the neck to the middle of the palm using a measuring tape or ruler.
Compare the measurement to the sizes listed above to determine the appropriate violin size.

2. Viola Sizing

Violas are unique in that they come in various sizes rather than fractional sizes like violins. The correct size is determined by the player's arm length and overall comfort while playing. Since the viola is larger than the violin, proper sizing is especially important to prevent strain and ensure ease of playing.

Sizing Based on Arm Length:

12" Viola: Suitable for children with an arm length of 18.5 inches or less, typically aged 4-6 years.
13" Viola: Best for players with an arm length of 18.5-20 inches, usually aged 6-7 years.
14" Viola: Ideal for children with an arm length of 20-22 inches, typically aged 7-9 years.
15" Viola: Fits players with an arm length of 22-23 inches, generally aged 9-11 years.
15.5" Viola: Suitable for those with an arm length of 23-24 inches, often aged 11-13 years.
16" Viola: Designed for players with an arm length of 24 inches or more, typically aged 13 and above.
16.5" Viola: Recommended for players with particularly long arms and advanced technique, offering a richer, deeper tone.

How to Measure for a Viola:

Extend the left arm fully outward.
Measure from the neck to the middle of the palm with a measuring tape.
Match the measurement with the corresponding viola size.

3. Cello Sizing

The cello is a large, dynamic instrument that requires careful sizing, especially for younger players. The correct size ensures that the player can comfortably reach all parts of the instrument and maintain proper posture, which is essential for developing good technique and avoiding injury.

Sizing Based on Height:

1/10 Size: Ideal for very young players under 3.5 feet tall, typically aged 3-5 years.
1/8 Size: Fits children between 3.5-4 feet tall, generally aged 4-6 years.
1/4 Size: Suitable for players who are 4-4.5 feet tall, usually aged 6-8 years.
1/2 Size: Best for children between 4.5-5 feet tall, typically aged 8-10 years.
3/4 Size: Designed for players who are 5-5.5 feet tall, generally aged 10-13 years.
4/4 (Full) Size: The full-size cello is suitable for players taller than 5.5 feet, typically aged 14 and above.

How to Measure for a Cello:

Sit on a chair with feet flat on the ground.
Hold the cello in playing position with the endpin adjusted so that the top of the cello's body rests against the chest and the scroll is near the ear.
Ensure that the knees can comfortably hug the sides of the instrument and that the player can reach the fingerboard and bow with ease.

4. Double Bass Sizing

The double bass is the largest of the string instruments, and its size must be carefully matched to the player's height and reach. Proper sizing is crucial for allowing the player to maneuver the instrument effectively and play comfortably.

Sizing Based on Height:

1/10 Size: Appropriate for very young children between 3.5-4 feet tall, typically aged 4-6 years.
1/8 Size: Best for players who are 4-4.5 feet tall, usually aged 6-8 years.
1/4 Size: Suitable for children who are 4.5-5 feet tall, generally aged 8-10 years.
1/2 Size: Fits players who are 5-5.5 feet tall, typically aged 10-13 years.
3/4 Size: The most common size for adults, suitable for players taller than 5.5 feet.

How to Measure for a Double Bass:

Stand next to the bass with the endpin extended to the correct height.
Ensure that the nut (top of the fingerboard) is at eye level.
Check that the player can comfortably reach the bridge with their hand while maintaining proper posture.

5. General Considerations for All String Instruments

Trial and Comfort: It is essential to physically try out the instrument before making a final decision. Comfort should be a top priority, as an instrument that is too large or too small can cause strain and hinder progress.
Professional Consultation: Consulting with a music teacher, luthier, or experienced musician is highly recommended. Their expertise can guide you in selecting the best size, ensuring the instrument complements the player's physical attributes and playing style.
Growth Considerations for Young Players: For children, it is important to consider future growth when selecting an instrument. However, it is not advisable to choose a size that is too large in anticipation of growth, as this can lead to improper technique and physical strain.
Quality and Fit: Even within the correct size range, different models and brands may vary slightly in dimensions and weight. Testing various instruments within the same size category can help identify the best fit.

This ultimate sizing guide provides the detailed information necessary to choose the appropriate string instrument size, ensuring a comfortable and enjoyable playing experience. Properly sized instruments are crucial for developing good technique, preventing injury, and fostering a lifelong love for music.