Your item
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What you keep
Break-even is the lowest price where you stop losing money.
Same item on each marketplace
| Marketplace | Fees | Net profit | Margin | Break-even |
|---|
Sorted by what you keep. Fee estimates use typical US rates — they are starting points, not promises; confirm current rates with each platform.
Want every marketplace and your own fee rates?
The Pro version is a single HTML file you keep forever:
- 14 channels — Etsy, eBay, Amazon, Shopify, Poshmark, Depop, Mercari, Whatnot, TikTok Shop, Facebook, Gumroad, Whop, Stripe, custom
- Editable fee table that remembers your real rates
- Batch mode: paste your whole inventory and price it at once
- CSV export and print-to-PDF for both single items and batches
- Works offline, no account, nothing sent anywhere
Buy on Gumroad — $9See the Pro version →
One-time $9, instant download. Any sales tax your location requires is shown at checkout before you pay.
Fee guides for individual marketplaces
Each guide explains that platform's own fee structure — what stacks, what is charged on shipping, and which fixed charge hurts cheap items — and has its own calculator pre-filled with that platform's rates. All free.
Marketplace fee comparison — one item priced across seven platforms at once, including the price each one needs to clear a target profit.
Etsy fee calculator — transaction fee, payment processing, the $0.20 listing fee and Offsite Ads.
eBay fee calculator — final value fee by category, the per-order charge and promoted listings.
Amazon fee calculator — the referral fee charged on item plus shipping, per-unit FBA fulfillment, and whether the $39.99 monthly plan earns its keep.
Mercari fee calculator — the selling fee plus payment processing, and why cheap items suffer.
Poshmark fee calculator — the 20% commission and the flat $2.95 that applies under $15.
Depop fee calculator — a fee model that has changed repeatedly, and what an offer really costs you.
Whatnot fee calculator — commission, card processing and the label you pay for, priced per auction lot.
TikTok Shop fee calculator — referral commission by category plus payment processing, with editable rates and the same break-even maths.
Gumroad fee calculator — the flat 10% with no fixed or listing fee, and what a discount really costs your payout.
Shopify fee calculator — the monthly plan fee amortised over your real order count, plus the card rate, the 2% third-party gateway fee and the sales needed to cover the subscription.
Whop fee calculator — what a digital sale pays you at about 3%, and the price needed to clear a target profit.
Why the price you see is not the money you get
Marketplace fees are stacked, not single. On a typical $40 Etsy sale with $5 shipping you pay a transaction percentage, a payment-processing percentage, a per-order processing cent charge and a listing fee — each calculated slightly differently. eBay adds a per-order fee on top of its final value fee; Shopify's per-transaction fee is small but the monthly plan is not. Shops that price by gut feel routinely lose money on the cheapest items, where fixed fees eat the largest share.
Three numbers worth knowing before you list
Effective fee rate. Total fees divided by gross revenue. On small orders it is often far above the headline percentage — that is where per-order fixed fees bite.
Break-even price. The sale price at which you make exactly zero. Any offer below it is a gift from you to the buyer.
Target-margin price. The price you need if you want to keep a set share of revenue, not just any profit.
What this calculator does
It runs the same arithmetic a spreadsheet would — gross revenue minus platform fees minus your costs — and solves it backwards for break-even and target-margin prices. It does not know your tax position, your return rate or your ad spend; enter those as costs or extra percentage if you want them included.
It is free to use, needs no account and stores nothing. If it saves you from one bad listing, it has paid for itself.