I find SoapCalc the most useful thing ever, but I haven't come across anything similar for lotions. The numbers for lotion formulas do my head in. So I made a spreadsheet to save my brain hurting every time I want to create a new lotion recipe. :x
Here it is, feel free to make your own copy and tweak to your needs. It should be fairly self-explanatory. There is a section on the right side where you can work out easy fragrance amounts if you want to divide a large lotion batch up into different blends.
https://docs.google.com/spreadsheet/ccc?key=0AoSK6FUdVDoTdGVEOC1ORjZMZGVRWjlWSjYxdzFjQUE&usp=sharing
Here it is, feel free to make your own copy and tweak to your needs. It should be fairly self-explanatory. There is a section on the right side where you can work out easy fragrance amounts if you want to divide a large lotion batch up into different blends.
https://docs.google.com/spreadsheet/ccc?key=0AoSK6FUdVDoTdGVEOC1ORjZMZGVRWjlWSjYxdzFjQUE&usp=sharing