How many boxes of cake mix for 16in by 4in round cake?

I can't give you an exact number of boxes of cake mix needed for a 16-inch by 4-inch round cake. Here's why:

* Cake Mixes Vary: Boxed cake mixes come in different sizes (usually 15.25 ounces or 18.25 ounces) and have different yield instructions. Some might say they make a 9-inch cake, others a 10-inch, etc.

* Cake Pan Shape Matters: A 16-inch by 4-inch cake is quite large, and it's not a standard size. You'll need to figure out the volume of this shape to determine how much batter it will hold.

* Cake Density: Cake recipes have different densities. Some cakes are lighter and fluffier, while others are denser. This impacts how much batter you need.

How to Figure it Out:

1. Calculate Volume: You'll need the formula for the volume of a cylinder: π * r^2 * h

* r = radius (half the diameter of the 16-inch cake, so 8 inches)

* h = height (4 inches)

2. Check Cake Mix Instructions: Look at your cake mix box. It should give the volume of batter it makes (in cups or ounces).

3. Compare Volume: Divide the volume of your cake pan by the volume of batter the cake mix makes to determine the approximate number of boxes you need.

Alternative:

Instead of trying to calculate it precisely, consider these options:

* Use a Recipe: Look for a recipe specifically for a large round cake.

* Double a Recipe: If you have a recipe for a smaller round cake, you can try doubling it. However, remember that doubling ingredients can sometimes lead to unexpected results.

* Call Your Bakery: If you're unsure, reach out to a local bakery. They might have the experience to guide you.

Remember: It's always better to have a little extra batter than not enough. Good luck with your baking!