Hi Austin, and welcome to the forum. we are all humble here, well most of us are anyway.
It is not quite as simple as that. Do you know the load you want the nut to exert on the bolt when it is as tight as you need it? Using the thread Pitch, you will need to calculate the force required to stretch the bolt or crush a lock washer to provide the desired tightness.
Armed with that, you can work towards the length of a wrench for a human or machine to tighten it to said load. Use the center-line of the bolt (or nut, it is the same) and the point on the outer end of the wrench handle where the turning force (your hands) will be applied.
That might get you started.