The best way to make sure your finished sweater fits is to knit it to the measurements of your favourite sweater.
Simply measure a sweater that has a nice fit and use those measurements to compare to the measurements in the schematics of the pattern you plan to knit.
This sweater size chart is a template where you will write the measurements of your sweater.
or, download ALL e-books and charts
in the Library of Free Knitting Resources