FINAL SALE AND SOLD AS IS
This clothing is measured flat.  The bust is measured from underarm seam to the underarm seam across the front ( double to get the circumference).  The length is measured from the shoulder seam straight down to the hem in both the front and back.  
4: Bust is 20" (40" around), Length is 46"
6: Bust is 22" (44" around), Length is 48"