I totally agree! I often have oils that I want to use but there is no info.I checked them in EO calculator. I wish they had a bigger data base of EO though. They’re missing some oils that I think are fairly common.
There is another EO calculator at Majestic Mountain Sage that you can cross-check. Also, if you are buying the EOs through a soap supplier, they should be able to give you the safe usage rate. The other option is to get Robert Tisserand's EO Safety book. It's pricey, but it has TONS of info on so many oils.