Exercise Description... *a barbell typically weighs 45 lbs / 20 kg (but can range from 35 - 55 lbs). For barbell movements, count the weight(s), then add the weight of the bar. For dumbbell movements, use the weight of the single dumbbell (do NOT add the 2 dumbbells together!). For selectorized/pin-loaded movements, just add the total weight(s). For plate-loaded movements, add the total weight(s) and then add 25 lbs.