5 grams of peanut butter is a small serving that looks like about half the size of a cherry. You can see it here next to a us dime, a us quarter, and a golf ball for scale.
Nobody has photographed 5 grams of peanut butter yet.
Volume
Weighs 0.176 oz (5 g)
about half the size of a cherry
Peanut butter typically ranges 1.08–1.14 g/mL depending on how it's packed. A firmly packed scoop weighs more.