This calculator will provide you with the material needed to frame an exterior stud wall.
Most common stud centers in residential Framing are 16" O.C. and 24" O.C.
In this calculator the wall comes with one stud on each end. For each corner you need it will add one stud.
For partition walls coming out of this wall, the partition option will add two studs for each of those you added. (Depending on your wall layout you may need them or not)
The amount of sheathing material needed is based on 4' x 8' sheets and it calculates that from the square footage of your wall. You may need to add a sheath, depending on your wall length and height.
If you have any windows or doors in your wall, you can use the more detailed exterior wall framing calculator.