I wonder if some kind soul could check my understanding of how to
evaluate whether I need to "heavy up" my electrical service box.

I currently have a box identified as 160A, with thirty circuits.

The home inspector I used when I bought the place said "you're going to
want to heavy up to 200A".

I'm not so sure.

The breaker for the kitchen appliances trips every so often, but that's
likely because the entire basement is also on that circuit, and there's
a dehumidifier down there. By chance, it occasionally kicks in when
the microwave and toaster are on and overloads the circuit.

Since I have five unused circuits, I figure I can split the basement
and the kitchen on to separate circuits, and add an extra kitchen
appliance circuit for good measure, and one for the basement workshop
tools.

The A/C circuit trips, too, but I believe that's because the A/C is
dying.

The way I see it, and this is my question, as long as the load on no
individual circuit exceeds it's rated amperage, and the load on all
circuits collectively does not exceed 160A, which is the size of the
box, I don't need to "heavy up".

Is that correct?

Thanks for any comments.

ccsikyr