Build the order
Enter item price, buyer shipping, tax, and the fee settings that apply.
Free calculators for online sellers
Know what you'll keep before you list.
Current marketplace fees, actual costs, profit, margin, ROI, and target pricing in one clean calculation. No signup. No spreadsheet archaeology.
- Current fee sources
- Calculates locally
- Free, no account
SALE SNAPSHOTLIVE
ITEM SOLD$100.00
Platform fees− $13.60
Item + fulfillment− $46.50
ESTIMATED PROFIT$39.90
39.9%Calculator library
Run the numbers before the offer arrives.
Each tool uses the platform's real fee bases and adds the costs generic payout calculators leave out.
01
eBay seller math
eBay Fee Calculator
Estimate eBay final value fees, promoted listing fees, net payout, actual profit, margin, ROI, and target sale price.
Open calculator02
Payment math
PayPal Fee Calculator
Calculate current PayPal business transaction fees, net payment, profit, margin, and the price needed for a target profit.
Open calculator03
Etsy shop math
Etsy Fee Calculator
Estimate Etsy listing, transaction, payment processing, and Offsite Ads fees with net profit and target pricing.
Open calculator04
Live-selling math
Whatnot Fee Calculator
Estimate Whatnot commission, payment processing, payout, profit, margin, ROI, and target sale price.
Open calculator05
Resale math
Depop Fee Calculator
Calculate current U.S. Depop payment processing and optional boosted-listing fees with net profit and target price.
Open calculator06
Menswear resale math
Grailed Fee Calculator
Estimate Grailed's current tiered seller commission, Stripe processing, payout, profit, margin, and target price.
Open calculator07
Marketplace math
Mercari Fee Calculator
Estimate Mercari's current U.S. selling fee, payout, profit, margin, ROI, and target sale price.
Open calculator08
Closet math
Poshmark Fee Calculator
Calculate Poshmark seller fees, net earnings, real profit, margin, ROI, and target listing price.
Open calculator09
Business fundamentals
Profit Margin Calculator
Calculate gross profit, net profit, gross margin, net margin, and the revenue required for a target margin.
Open calculator10
Pricing fundamentals
Markup Calculator
Convert cost and markup into selling price, profit, margin, and the price needed for a target margin.
Open calculatorMore than a payout number
A listing can pay out and still lose money.
Marketplace Math separates the platform's cut from what the sale actually earns after inventory, shipping, packaging, and promotions.
Add your real costs
Include item cost, postage, supplies, and promoted-listing spend.
Protect the profit
See payout, profit, margin, ROI, and the sale price needed for your target.
Seller guides
The fee policy, translated.
Official sources, concrete formulas, and the edge cases that change your take-home amount.
01
eBay fee guide
How Much Does eBay Take? Current Seller Fees Explained
Read guide ↗02PayPal fee guide
PayPal Business Fees: What a Seller Pays Per Transaction
Read guide ↗03Etsy fee guide
How Much Does Etsy Take? Listing, Transaction, Payment, and Ad Fees
Read guide ↗04Whatnot fee guide
Whatnot Seller Fees: Commission, Processing, and Net Earnings
Read guide ↗05Depop fee guide
Depop Seller Fees in the U.S.: Processing and Boosted Listings
Read guide ↗06Grailed fee guide
Grailed Seller Fees: The New 6% and 9% Commission Tiers
Read guide ↗07Mercari fee guide
Mercari Selling Fees: The Current 10% U.S. Seller Fee
Read guide ↗08Poshmark fee guide
How Much Does Poshmark Take? The $2.95 and 20% Fee Tiers
Read guide ↗09Margin guide
How to Calculate Profit Margin: Gross, Net, and Target Margin
Read guide ↗10Pricing guide