A standard cake mix yields about 5 cups of batter, and a 12x2 inch cake pan takes 8 cups of batter. If your pan is 3 inches deep instead of 2, you will need 11 cups. So two cake mixes will be about right...you'll have a bit left over with a 12x2.
I just made a strawberry cake roll yesterday, and my Duncan Hines box made 2 rolls, I did discover, at least with the strawberry, that perhaps you'll want to add an extra egg or 2, this should add some springiness to the cake so that they won't crack when you roll them up. Be sure to generously grease and flour your roll pan, or use parchment paper to keep the rolls from sticking when you turn them out. Good luck.
9 in. round pans are most commonly used when making cakes. According to Betty Crocker's cake mix, the package is enough for one 13x9x2 in pan, two 8" rounds, two 9" rounds, 24 cupcakes or one 12 cup fluted tub (bundt pan).
1 mix will go in 2 pans, the cakes will just be thinner and will bake in less time. You could use 2 mixes in 3 pans and have thicker than normal layers with a slightly longer baking time.
How to be certain:
I believe one cake mix will fill one 10" round nicely. But you can test this for yourself, so you know exactly how much your particular pan requires.
Look on the cake mix box, for the recommended pan size. It probably suggests a 9" x 13" pan. Take a 9" x 13" and measure the number of cups of water needed to fill the pan to the brim. Then measure your 10" round in the same way. If both pans hold close to the same amount of water, then both would hold the same cake mix. On the other hand, if the amount of water needed to fill the 9" x 13" pan only filled the 10" round halfway, then you would know that you need 2 mixes to fill the 10" pan.
Not all boxes of cake mix are the same. You will have to read the box to find the correct one for your needs.
Your 'six inch pan' is unclear. If it's a six inch round or square, that's really small for a cake pan. Is it a loaf pan, or is the six inch measurement a depth. Standard round and square cake pans are usually 9" to 10" in diameter or across. Loaf pans can be a standard size (as a loaf of bread) or mini loaf pans. Pans that are rectangular are usually called sheet cake pans but would have to be measured. A six inch deep pan would be a specialty, non standard pan. You will have to measure the diameter or length and width of your pan and compare it to the directions on cake mix boxes.
9X12 or 11X13 takes one box of cake mix for each layer.
1 for a thin cake. 2 for an ULTRA thick cake. And about 1 and 1/4 for the perfect amout! (:
three
It depends on how deep the cake pan is.
4 boxes for a single pan
for an 14 in round cake pan, you only need 1 box
You should order for only 90% of your guests. Some people will not eat the cake. So again, only order for 90% - in your case that means 12 people or one cake box mix - or one 9 inch round/square cake.
1/2 full
8 inches. there are 2.54 cm in an inch
You can actually use one box alone but it will be thinner. you can actually use the amount of boxes of cake mix you want it will just get thicker.
at least halfway full. but not more than 2/3 full.
If it calls for a 9 inch springform pan which holds about 10 cups one may use: 1 (10-inch) round cake pan 1 (10-inch) springform pan 2 (8-inch) round cake pans 2 (9-inch) round cake pans If it call dor a 10 inch springform pan which holds about 12 cups one may use: 2 (8 x 4-inch) loaf pans 1 (9-inch) tube pan 2 (9-inch) round cake pans 1 (10-inch) Bundt pan 2 (11 x 7-inch) baking dishes 2 (8-inch) round cake pans
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16 inch round cake... 15 cups batter. I would just get a few cake mixes and measure 15 cups of batter. Although I have looked it up and it sounds right... there are 4 1/2 cups of batter in one cake mix box.
Preferably not, the tins that you use should have an added overall area of 81'' square (presuming your nine inch tins are square). Therefore the ten inch pan (if square) will be too big. Though if you don't mind a slightly thinner cake then it would be okay.