Need to adapt cake recipe for two 9x5 loaf pans to two 8x4 pans.

You're very welcome. Lemon cakes for Easter, how perfect!

Thank you so much for the very helpful replies, boulangere! The pans I have are between 2 1/2 - 2 3/4 inches deep. Am making lemon loaf cakes. Thanks, again!

Alternatively, make the amount called for by your recipe, and bake the leftover batter in a small loaf pan. Freeze it and pull it out when you need a little something for someone. Bake time will go down a bit, so set your timer for 10 minutes or so less, and watch your cakes.

How deep are they? Calculate the volume of each by multiplying length x width x depth. Calculate the % difference between the two volumes by subtracting the smaller # from the larger #, then dividing the result by the larger #. That gives you the % by which to decrease each ingredient. What kind of cake are you making?