Dimensions of cake pans will change the timing of baking cakes so always keep your eye on the doneness in the last 10 minutes or so. For the orange cake recipe, you can use a 9" (23cm) springform pan (what I use), two 8" (20cm) round pans (for two layers), an 8" (20cm) square pan, a 9" round pan or 9x5' (23x12.7") inch loaf pan.