Linda, it can vary by the size of the recipe. The cookies I make most often, our https://www.kingarthurflour.com/recipes/chocolate-chip-cookies-recipe, I use a 9" x 13" pan for dough that includes 2 cups of flour and 2 to 2 1/2 cups chips; you could use that as a rough comparison tool for other recipes. But honestly, it's probably just as easy to pat the dough into a 1"-tall square or rectangle on a piece of parchment or waxed paper; that way you don't need to worry about the pan size, it's just whatever size it turns out when it's 1" thick. Hope this helps — PJH@KAF

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