If replacing granulated sugar with powdered sugar do you use the same measurement?

No, you cannot directly substitute powdered sugar for granulated sugar using the same measurement. Powdered sugar is much finer and has a different density, so it takes up more volume. Typically, you should use about 1 ¾ cups of powdered sugar to replace 1 cup of granulated sugar. However, it's also important to consider that powdered sugar contains cornstarch, which may affect the texture of the final product.