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When substituting ground coriander for fresh coriander, the general ratio is 1:3, meaning you should use one-third the amount of ground coriander as you would fresh. For example, if a recipe calls for 1 tablespoon of fresh coriander, you would use about 1 teaspoon of ground coriander. Keep in mind that ground spices are more concentrated, so it's best to start with less and adjust to taste.
No you can't. Fresh coriander is when you use the leaves and ground coriander uses the seed of the plant. Their flavour is quite different from each other.
They are not equivalent. Ground coriander is the seed whereas fresh coriander is the leaf of the plant. They are different flavors and cannot be substituted.
1 tablespoon fresh rosemary equals 1 teaspoon dried
One tbsp of fresh coriander would be one teaspoon of dried and vice-versa. That is a three to one ratio. This formula works for all herbs. Just remember 1tbsp fresh = 1 tsp. dried. Packaged dried herbs are stronger than fresh herbs, but lose their potency as they age. If the container is new then use a bit more sparingly. Fresh herbs are the way to go to get the best results.
A one inch piece of fresh, grated ginger (generally yielding 1 tablespoon) equals approximately 1/8 teaspoon ground (dried) ginger. Source: http://www.evitamins.com/healthnotes.asp?ContentID=3602003
1 tablespoon dried minced onion = 3 tablespoon fresh minced onion
You can use dried coriander or cilantro as a substitute for fresh coriander in the recipe.
Use 1/3 or 1/2 of the fresh amount. So, if the recipe calls for 1 teaspoon fresh cilantro, you use 1/3 or 1/2 teaspoon of dried.
You can replace coriander with cilantro, which is the leafy form of the seed, coriander. This is not an exact match, and the flavor/scent of cilantro is stronger than coriander, so be very careful. I'd replace 1tsp of dried coriander with 1/2tsp of dried cilantro or 1Tbsp of fresh, minced cilantro.Cumin might make a reasonable replacement. Depends whether you need ground or fresh.
Not if you want it to taste the same! The leaf of the same plant is cilantro.
If the recipe calls for coriander seeds, cumin and caraway seeds are good substitutes. If the leaves of coriander is what is required for the recipe, this is also known as cilantro. In this case, fresh parsley can be used as a substitute.