Don't know if this will help, but it's what I used when I diets bought my bike along with the advice of mu LBS

Determining Your Road Bike Frame Size
Height Inseam Length Bike Frame Size
4'10" - 5'1" 25.5” - 27” 46 - 48 cm
5'0" - 5'3" 26.5" - 28" 48 - 50 cm
5'2" - 5'5" 27.5" - 29" 50 - 52 cm