Know your numbers.
Keep more profit.
Fast, clear calculators for resellers, independent makers and online sellers. Understand your costs before you list, pack or ship.
See your exact numbers in our free calculators.
Everything you need to price smarter.
Start with a profit estimate or choose a marketplace-specific tool. All tools work instantly in your browser.
Resale profit
See what is left after product costs, shipping and fees.
Open calculator →Selling price
Find a selling price that protects your target profit.
Open calculator →eBay fees
Estimate US final value and per-order fees.
Open calculator →Etsy fees
Model listing, transaction, payment and ad fees.
Open calculator →Dimensional weight
Compare actual parcel weight with volumetric weight.
Open calculator →Built for real decisions
Enter actual costs instead of relying on a headline selling price.
No account or upload
Calculations happen directly on your device, not on our servers.
Editable fee assumptions
Check current marketplace and carrier rules before acting on the result.
Why the true profit matters
Every sale combines income with costs that may be easy to forget: postage, mailers, marketplace charges, payment processing fees and advertising. Estimating these before you list helps you avoid selling an item at a loss.
Use the resale profit calculator for general marketplace sales, the selling price calculator when you have a profit target, or our eBay and Etsy calculators for example platform fee structures. Shipping bulky products? The dimensional weight tool estimates how package size can affect billable weight.
These tools provide planning estimates, not tax advice or official marketplace fee statements. Always verify the current rates for your country and selling account.