16.5 inches is the largest readily available viola size. Bigger violas are certainly available, but you may have to look harder to find them. To fit a 16.5-inch viola, your arm length … See more

16-inch violas are considered large violas, recommended for players with an arm’s length of 69 centimeters (or 27 inches). 16-inch violas (and larger) are typically best suited for a… See more

15.5-inch violas are made for players with an arm’s length of 66 centimeters (or 26 inches), typically suited for the average adult player, or children above the age of 14.… See more

15-inch violas are made for players whose arm’s length is around 58 centimeters (or 23 inches). Children around the ages of 11-13 typically play on 15-inch violas. See more

14-inch violas are best suited for players with an arm’s length of 56 centimeters (or 22 inches), or children ranging from ages 9-12. 14-inch violas are comparable in size to full-size viol… See more