# Is it possible to know the order of the filter, just looking on the pole zero plot?

is it possible to know the order of the filter, just looking on the pole zero plot.

I know how to get the order of the filter using calculations(highest order), but I want to know is it possible to see that in pole zero plot.

So far my idea is that the higher number of zeros/poles (pairs) is the order, for example if I have 3 poles and 1 zero in a zero ploe plot, than is the filter 3 order.

My knowledge over this is still small, so I am sorry if it is a stupid question.

Thanks