Max Bid Calculator
The most you should bid on an item and still come out ahead — whether you're reselling or just don't want to overpay. Free, no signup required.
Want this applied automatically to every listing?
WorthAPick reads estate sale and auction listings, estimates what each item's really worth from comparable sold prices, and ranks them so you know what's genuinely worth going for — whether you're reselling or just don't want to overpay.
Get started freeMax Bid Calculator FAQ
What is a max bid calculator?
It works backward from how good a deal you want to the highest price you should pay — factoring in fees (if reselling) and any buyer's premium — instead of guessing at auction and hoping the math works out afterward.
What's a buyer's premium?
An extra percentage many auction houses add on top of the hammer price — separate from any selling fee. Set it to 0 if the platform you're bidding on doesn't charge one.
I'm not reselling — do I still need the selling fee field?
Set it to 0 if you're keeping the item. eBay runs about 13% for most categories, Facebook Marketplace is free for local pickup, and Reverb (musical instruments) is about 8% combined, if you do want to factor in eventual resale.
Does this save my numbers?
Not on this page — it's a quick, no-signup tool. WorthAPick's full app applies this same calculation automatically to every listing it analyzes, using real comparable sold prices instead of a number you estimate yourself.