Instructions
Open "World of Warcraft" and load the character whose DPS you wish to check.
Press "C." A dialog box pops up with your current character's portrait.
Click the small arrow on the left of the box. A side panel juts out listing various stats.
Scroll down to the section appropriate to your class. Warriors, death knights, paladins and rogues exclusively deal in melee. Warlocks, mages and priests exclusively deal in spell damage. Hunters exclusively deal in ranged damage. Shamans and druids deal in both melee and spell damage.
Locate the number beside "DPS" under your category. This number is the average amount of damage you deal to an enemy using an attack under that category.