I created an Excel file along the same lines as the Safe Vaping chart, but without the colors suggesting safe vape ranges. It is repeated twice, one giving watts, the other amps, at various ohms and volts. The file is not locked so you can download it and modify it if desired. I find it a lot faster than using a online Ohm's law calculator. It's been a while since I've used Google Drive, so let me know if I did something wrong. https://drive.google.com/file/d/0B_Zj6gvHu7y-TlJhZU1ZMWRUQ0E/edit?usp=sharing

you need to either set it public unless your intent is to give access to each and everyone who wants to view it.

Thanks lordmage . OK, I think I fixed it. My intention is that everyone can see it and download an unprotected file. Let me know how it goes folks

if you want to use more of a formula based program try steam engine. pretty cool. http://www.steam-engine.org/

I actually prefer the Excel chart for watts and amps Budkiss. I use steam-engine for coil calcs and also recommend their ohm's law calculator to people.