Having the correct size instrument is critical to the success of your child’s musical experience.   An incorrectly sized instrument becomes difficult, if not impossible to play.

The best way to size an instrument to your child is to have the size determined by their orchestra teacher, or by one of the professional staff at Day Violins.  However, if you are ordering your instrument rental on-line, this may not be possible.  If you are not able to have the size determined by a professional, you may use the below charts as a guide as to the proper size for your child. The chart gives you measurement to use as a guide.


The measurement for Violin and Viola is made of your child’s arm length.  Do the following to take the arm measurement:

  1. Have your child stand upright, with their left arm extended to the side, with their palm turned upward.
  2. Place the end of the ruler against your child’s neck
  3. Extend the ruler down your child’s arm to the middle of their palm
  4. Take the measurement to the middle of the palm
  5. Compare the measurement to the chart to determine the correct size. The chart gives a length range that is appropriate for each size.
  6. If the measurement is “close, but not quite…” chose the smaller size. It is easier to play and learn on an instrument that is smaller rather than on one that is too big.


Correctly sizing a cello is a little more difficult.  Cello sizing is determined by a combination of measurements.  The following chart may be used as a guide to determine the correct size cello for your child


If you have any questions, or are unsure if you are doing the measurements correctly, feel free to contact the professional staff at Day Violins for assistance.   Please call at (703) 391-9444.