Originally Posted by cooper
Beersmith does it too if you have that.
I second this motion.
The PC application of beersmith (if I remember correctly) is a little pricey, but the version for android phones/pads is very affordable and super helpful.
You just plug in the recipe at whatever size you brewed it at and then you can "scale" it for a different brewing system/size. Pretty neat and a great way to keep track of your brews and variations of them, as you can copy and change any part of a recipe.