Yesterday I made banana bread. Yum! (America's Test Kitchen wins again with their recipe. You all really should buy their cookbooks. Maybe I'll do a give-away again. That would be a good pre-holiday cooking giveaway. Hmmm..watch for one!) I didn't have an loaf pans but did have a tube cake pan. My google-search for how to convert cooking time didn't turn up much - so here's my public service announcement for bakers everywhere.
A recipe that makes one loaf converted to a tube cake pan.
Double the recipe, increase cooking time by 1.5 (If it's directed to cook for an hour - cook for an hour and a half)
Please note these results are not scientific and your recipe could be different - but - there's a starting point!