E-commerce Calculators 2026 - Etsy, eBay, Amazon FBA, Stripe
What makes the e-commerce category useful
This category groups calculators that solve closely related real-world tasks, so you can move from a quick estimate to a more specific planning tool without restarting the process.
Calculate Etsy listing, transaction, payment, and offsite ad fees on any sale
Estimate eBay final value fees, ad fees, and net payout in one click
Project Amazon FBA referral, fulfillment, and storage fees per listing
Compare Stripe processing costs in forward (add fee) and reverse (net target) modes
Compare seller profit across Poshmark, Depop, TikTok Shop, and Etsy side by side
Pricing for marketplace fees
Set a sale price that lands your target margin after Etsy, eBay, or Amazon takes their cut.
Shipping and fulfillment
Use volumetric weight and shipping cost calculators to avoid losing margin on bulky orders.
Cross-channel comparison
Compare net profit on Etsy, eBay, and TikTok Shop before deciding where to list a SKU.
All E-commerce Calculators
E-commerce Profit Calculator
Compare profit across Shopify, Amazon FBA, and Etsy.
Amazon FBA Profit Calculator
Per-unit FBA profit after fees and landed cost.
Volumetric Weight Calculator
Find billable shipping weight from dimensions.
TikTok Shop Earnings Calculator
Calculate TikTok Shop seller or affiliate earnings.
Etsy Profit and Fee Calculator
Calculate Etsy seller profit after all platform fees.
eBay Final Value Fee Calculator
Calculate eBay seller fees by item category.
Poshmark vs Depop Profit Comparison
Compare reseller profit: Poshmark vs Depop.
Stripe Fee Calculator
Calculate Stripe fees, net payout, and gross-up amounts.
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What fees does Etsy charge per sale?
Etsy charges $0.20 per listing, a 6.5 percent transaction fee, payment processing of about 3 percent plus $0.25, and a 12 to 15 percent offsite ad fee if applicable. The Etsy calculator adds them all in one step.
How do eBay final value fees work?
Most categories charge a final value fee of around 13.25 percent on the total sale (item price plus shipping) plus $0.30 per order. Store subscribers pay a reduced rate.
What does Amazon FBA actually cost per unit?
FBA combines a referral fee (8 to 15 percent depending on category), a fulfillment fee based on size and weight (around $3.22 for a small standard item), and monthly storage charges per cubic foot.
How is Stripe payment processing calculated?
Stripe charges 2.9 percent plus $0.30 per successful card charge in the US. On a $100 sale that is $3.20 in fees, leaving $96.80 as net payout.
How do I price a product to keep a 30 percent margin after fees?
Add total marketplace and payment fees as a percentage to your cost, then divide by 1 minus the target margin. Use the e-commerce profit calculator to back-solve for the listing price.
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