The difference

Spaghetti vs Vermicelli

Same shape, different gauge, and the name flips by region. In Italy vermicelli is usually a touch thicker than spaghetti, in the United States it is sold thinner. Either way it is a solid round strand for the same light, clinging sauces.

Gouache illustration of Spaghetti

Spaghetti

Family: Long strands
Size: 250 to 300 mm long
Surface: Smooth
Cook: 9 to 12 min

Wants: Tomato sauce, Carbonara, Garlic and oil

Gouache illustration of Vermicelli

Vermicelli

Family: Long strands
Size: 2.08 to 2.14 mm across
Surface: Smooth
Cook: 12 to 14 min

Wants: Tomato sauce, Garlic and oil, Clams

Compare more shapes, or look up Spaghetti and Vermicelli in full.