Diaper Size and Weight Chart | Pampers
Oct 02, 2019·As you know, babies come in all sizes and shapes, so diapers fit a bit differently on every baby. To keep things simpler, Pampers diapers sizes are based on baby weight—not things like age or gender. Most of the time, your baby's weight will fall neatly within the range of a certain diaper size, producing a good fit.