CrosslistyReseller profit calculator, including your time
Enter the marketplace, sale price, what you paid, shipping, supplies and your minutes. You get profit, margin, return on cost and what you earned per hour. The last number is the one most sellers skip, and often the most surprising.
The shortcut: Listing is often the slowest step. Crosslisty fills the form on each marketplace, so a second listing takes seconds.
Add to Chrome, free- Margin is profit as a share of the sale price. Return is profit as a share of what you paid.
- A big return on a cheap item can still pay badly per hour.
- Count all your time: sourcing, photos, listing, packing and the trip to drop it off.
Updated October 2026. Crosslisty is a Chrome extension (it also works in Brave and Edge) that copies a listing to the other marketplaces, fills each form for you, and removes sold items from your other listings.
Margin, return and hourly pay
| What it tells you | Formula | |
|---|---|---|
| Margin | How much of each sale you keep | Profit ÷ sale price |
| Return | How hard your money works | Profit ÷ what you paid |
| Hourly pay | Whether it is worth your time | Profit ÷ hours spent |
Time is the hidden cost
One seller in r/sportscards tracked 50 card sales and logged nearly 11 hours of work, over 13 minutes a card, across photos, research, listing and shipping. That is what this calculator’s minutes field is for. Time a few items honestly before you trust the number.
What to do with the result
- Low hourly pay on cheap items: raise your minimum buy price or bundle them.
- Low margin: try another marketplace in the comparison calculator.
- Slow listing: time each step and cut the slowest. Here are ways to speed up listing.
Sources
- r/sportscards: tracking 50 card sales
- eBay selling fees
- Poshmark fees
- Mercari fees
- Depop seller fees
- Etsy fees
- Facebook selling fees
- Vinted help
- Grailed fees
Questions
How do I calculate reselling profit?
Sale price minus marketplace fees, what you paid, shipping you pay and supplies.
What is a good margin for reselling?
There is no single answer, as it depends on price and speed. Compare your hourly pay as well, since a high margin on a $5 item may still pay little.
Does this include tax on my income?
No. It shows profit before any income tax.
Crosslisty does these steps for you. Free for 5 fills a day, or $15 a month for unlimited crosslisting. Cancel anytime.