Question: how many cups in 1 ounce of popcorn?
Answer: 2 tablespoons of kernels (1/8 cup), which is equivalent to one ounce of kernels, will make approximately 3.5 cups of popped popcorn. 1/4 cup of kernels, which is equivalent to 2 ounces of kernels, will make approximately 7 cups of popped popcorn.