EDIT: See version 2 of calculator HERE Hi everyone. As I'm sure will become more and more apparent, I really like to do some practical D2 math, and even better if I can get a reusable calculator/spreadsheet from it. @Gripphon 's runefinding guide is one of my favorite posts ever, and I reference it all the time. (Link to guide - If you haven't read this, do so...multiple times) Put these two things together, and out comes my: Runefinding Calculator (google sheets, click to access) And here's a screenshot of what it looks like. Spoiler With RFL right around the corner, I thought it the perfect time to post this spreadsheet I'd been working on. I would have liked to include a sheet for round 3 as well, but the difficulty in counting monsters minions and bosses, combined with the need to differentiate ghost-types, made it impractical. I'll table that idea, but here we have LK, trav, cows, and ...countess! I have recalc'd countess's drop rates for 1.13b+ which I haven't seen posted here anywhere. You'll get a peek at these in this sheet, but I figured the tables themselves, as well as description of the calc, deserved their own post. I'll plan to write up that post in a few weeks or whenever, unless someone really wants to see it earlier. Hope some of you find it useful/enjoyable! And let me know if there is any confusion or suggestions!