Calculator directory

Pick the deal. Run the right math.

Start with the full auction profit calculator when you need a bid decision. Use a focused calculator when one fee, channel, or inventory type is the question.

RECOMMENDED · BROADEST MODEL

Auction Profit & Max Bid Calculator

Model premium, tax, freight, sellable inventory, fees, prep, financing cost, profit, ROI, stress cases, and your maximum hammer bid.

Run the recommended calculator →
AUCTION CHECKOUT

Buyer’s Premium Calculator

Turn a hammer price into the actual checkout total after buyer’s premium, sales tax, and fixed charges.

Calculate checkout →
BULK INVENTORY

Liquidation Pallet Calculator

Underwrite manifest recovery, sellable units, freight, fees, cost of capital, profit, and maximum purchase price.

Run a pallet →
LOCKER UNDERWRITING

Storage Unit Auction Calculator

Price a resale haircut, haul, cleanout, labor, fees, financing cost, and a firm walk-away bid.

Underwrite a unit →
MARKETPLACE EXIT

eBay Fee & Profit Calculator

Estimate payout after inventory cost, shipping, final value fees, ads, supplies, and inventory carrying cost.

Estimate a sale →

Which auction calculator should you use?

Use the Auction Profit & Max Bid Calculator before bidding on a mixed resale lot. It combines acquisition fees, damaged or unsellable inventory, marketplace costs, financing, target profit, and reverse bid math in one decision.

Use the Buyer’s Premium Calculator when you only need the auction checkout total. For category-specific inventory, the Liquidation Pallet Calculator models manifest recovery, while the Storage Auction Calculator adds hauling, cleanout, labor, and condition risk.

After an item is ready to list, use the eBay Fee & Profit Calculator to estimate net payout after selling fees, promoted listings, shipping, supplies, and the cost of holding financed inventory.