"Most people measure from the arm pit to mid-palm to obtain proper arm measurement."

General age guidelines are as follows:

Age	Viola Size
3-5	1/16 size -1/10th Violin strung "as" Viola
5-6	1/8 size Violin strung "as" Viola
7-9	1/4 size Violin strung "as" Viola
8-10	1/2 size Violin strung "as" Viola
10-11	14" Viola
12-13	15" Viola
13-14	151/2"-16" Viola
14+	151/2"-161/2" Viola

"Most people measure from the arm pit to mid-palm to obtain
proper arm measurement."

Arm Measurements

Arm Length	Viola Size
14" to 15 3/8"	1/16 size -1/10th Violin strung "as" Viola
15 3/8" to 18 1/2"	1/8 size Violin strung "as" Viola
18 1/2" to 20 3/8"	1/4 size Violin strung "as" Viola
20 3/8" to 22 1/4"	1/2 size Violin strung "as" Viola
22 1/4" to 23 5/8"	14" Viola
24 5/8" to 25"	15" Viola
26"to 27"	151/2" Viola
27 1/2 to 28 +	16" - 161/2" Viola
"In general, people try to play the largest viola they are physically capable of because the larger the viola, the bigger and better the sound."