I've seen a few people talking about how it's a bit of a hassle to convert ounces to grams and vice versa, which made me think of Convert. I use it a lot, and not just for soaping. One of the cool features is that you can turn off the tabs you don't need (I shut off the ones like light and pressure since I'm not likely to ever use them) and tailor it to your own needs.
Anyway, Convert is free and really handy. I've used it for the last few years, since my dad first sent me the link to it.
Anyway, Convert is free and really handy. I've used it for the last few years, since my dad first sent me the link to it.