A 1 tsp serving of creatine monohydrate weighs 0.104 oz (2.96 g), while a 5 g dose is physically larger. You can visualize the difference by comparing a pile 1.4 in (3.55 cm) wide and 0.587 in (1.49 cm) tall to one that is 1.67 in (4.23 cm) wide and 0.699 in (1.78 cm) tall.

Biggest vs smallest
1.19× the size
5 g of creatine monohydrate vs 1 tsp of creatine monohydrate
Typical adult or standard sizes; real ones vary.