Free fee calculators for resellers
Know your real profit before you list.
See exactly what you keep on eBay, Poshmark, Mercari, Whatnot and 5 more platforms, after fees, shipping and sales tax. Every rate is checked against the platform's official fee page (October 24, 2026).
Example: eBay sale
Item price$45.00
Shipping charged$8.00
Final value fee−$7.78
Per-order fee−$0.40
Item cost + label−$17.50
You keep$27.32
Free fee calculators
eBayFinal value fee for most categories: 13.6% of the total sale amount up to $7,500, plus 2.35% on the portion over $7,500.Open calculator →PoshmarkSales under $15: flat $2.95 fee.Open calculator →Mercari10% selling fee on the item price plus any buyer-paid shipping.Open calculator →WhatnotCommission is charged on the item price only (not shipping or tax). Standard US rate: 8% (4% for coins).Open calculator →DepopUS sellers pay a 0% selling fee.Open calculator →EtsyListing fee: $0.20 per listing (and again when a multi-quantity item renews after a sale).Open calculator →Facebook MarketplaceShipped orders: 10% selling fee per shipment, or a flat $0.80 for shipments of $8.00 or less.Open calculator →AmazonReferral fee: a percentage of the total sales price, including shipping and gift wrap. For most categories it's 15%, with a $0.30 minimum.Open calculator →GrailedCommission: 9% on sales of $120 or more, 6% (minimum $1.99) on sales under $120.Open calculator →Compare all 9One sale, every platform, ranked by what you keep.Compare →
Sourced, not guessed
Every calculator links the platform's own fee page and shows the date we checked it.
Includes the hidden stuff
Fees on shipping and sales tax, per-order fees, processing, ads and boosts are all in there.
No signup
The calculators are free and run in your browser. Nothing to install.
Fliprofit Profit Tracker
Then stop doing math one sale at a time
A spreadsheet for Google Sheets or Excel. Log your inventory and sales; it estimates each platform's fees and builds your profit dashboard by month and by platform.
- One-time $12, no subscription
- Instant .xlsx download after checkout
- Secure checkout via Polar
