If you were to get fitted a good fitter will give you a R.O.R. which is range of rideability... my road bikes fall into this at 53 cm square and 55.5 square and the taller bike has a stem that is 20mm shorter and the smaller bike has a more aggressive fit and saddle to bar drop with a longer stem.

The top tube measurement is the important one as this determines your riding position to ensure you are not too cramped or too stretched out.