One-eighth teaspoon of garlic powder equals one small clove of garlic, and 1/2 teaspoon of garlic powder equals one large clove. When substituting granulated garlic for fresh cloves, 1/4 teaspoon is equal to one small clove.
It takes 1/2 teaspoon of dehydrated minced garlic, which is rehydrated with water, broth or wine to equal a small clove of garlic. When using commercially packaged minced garlic, 1 teaspoon is equal to two medium-sized cloves. Garlic salt is also used as a substitute at 1/2 teaspoon per clove. When using garlic salt as a substitute, the amount of salt in the recipe should be reduced to avoid over-seasoning the dish.