Font size viewable from 5-7 feet away from a 32" Touchscreen, and button sizes ideal for a 32" touchscreen?
closed as too broad by Devin, Ken Mohnkern, Shreyas Tripathy, locationunknown, Big_Chair Nov 7 at 14:38
Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
The only UX answer is to not design in a vacuum. Design it the best way you can - then look at the product in context; the same way the customer / user will. There is no substitute for that.
If you are creating the designs on your PC (and using the mockup sizes you intend to replicate), best believe that if it is 'viewable' on your PC, it will be viewable 5-7feet away.
Same goes for the 32' touchscreen, if it looks good on the prototype, it'll definitely look good in reality.