Usually about three times as much, but if a recipe calls for fresh, do your best to use fresh. Dried rosemary is one of those herbs that does not do very well dried. Fresh vs dried makes a huge...
tablespoon fresh rosemary equals 1 teaspoon dried
Approximately one teaspoon of dried rosemary equals one tablespoon of fresh. (Approx. 1 tsp dry = 1 Tbsp fresh)
4 tsp of dried rosemary equals 1/4 cup fresh.
A lot less. Fresh herbs are many times more potent than dried one. A third to a half is a rule of thumb.
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