for size 12
chest 30
waist 25. 5
hip 32 on an average
or
for bust measurement 34
waist mesureent 26. 5
hip measurement 36 for 9 inches below waist
for pattern industry standard chart for size 12 are on an average
bust – waist – hip measurements are 33 – 27 – 35
For classic American sizing, a size 12 will fit a woman with a bust measurement of 38 inches, a waist measurement of 30 inches, and a hip measurement of 40 inches.