Max Buy Price Calculator
Find your purchase ceiling from a sale estimate and profit or ROI goal.
Example: Selling for $180? See the most you can pay and still target $50 profit.
Calculate max buy price →Free reseller tools
Useful numbers for your next resale decision
Run each calculator right here. No account, email, payment, marketplace data, or saved inputs required.
Sourcing
Bulk Lot Cost Splitter
Allocate a bundle's purchase cost across each item.
Example: Split a $240 estate-sale lot evenly or weight costs by resale estimates.
Split lot costs →Selling
Buyer Offer Calculator
See the estimated profit behind an offer and the sale price your goal requires.
Example: Compare a $170 offer with your $220 asking price using your actual costs.
Calculate offer profit →Reseller Profit Calculator
Work out profit, margin, and ROI after recorded costs on a sale.
Example: Enter sale price, purchase cost, fees, and delivery expense. No login needed.
Calculate resale profit →Inventory
Inventory Markdown Planner
Build a seller-defined price schedule for aging stock.
Example: Plan $15 reductions every two weeks until a $135 floor.
Plan markdowns →Sell-Through & Velocity Calculator
Measure how listed stock is moving over a period you choose.
Example: Compare 8 sold with 20 listed in the last 30 days.
Calculate inventory velocity →Local delivery
Delivery Profit Calculator
Estimate fuel, trip costs, optional time value, and delivery break-even.
Example: Check whether a $25 delivery fee covers a 20-mile round trip.
Calculate delivery cost →All calculations are estimates based on your entries. Tools do not provide accounting, tax, or negotiation advice. Learn the underlying methods in our reseller guides.