26 1/2 inches from armpit to armpit  

28 1/4 inches from the back collar seam to the bottom of the hem

11 1/2 inches sleeve opening 

This blouse makes for a great slimming look. Great to wear with jeans and leggings.  Great blouse to wear around the house.  The reason for selling is due to weight loss and doesn't fit anymore.  Well worn for many years.  Washes up very nice