BuildOS question

[ElAguila]

I am getting ready to create my first Kitchen build. I installed and ran the updater and selected the items I wanted. I went to the Tools menu and selected Calc Rom size. It goes through the compiling process and then at the very end it says Calculating Base Rom Size. Complete. It doesn't tell me what size the rom is. Is there a way to find this out before trying to flash to this rom?