Decision-focused
See the outputs that matter when evaluating price, margin, channel fit and break-even economics.
↗ Ecommerce profit intelligence
Calculate Fees.
Compare Marketplaces.
Know Your Real Profit.
Model marketplace fees, product costs and selling economics before you commit. Ecomly Profit helps ecommerce sellers compare channels with clearer assumptions and practical profit metrics.
No account required to explore
Five marketplace models
Transparent assumptions
CALCULATE · COMPARE · DECIDEProfit Calculator
Amazon
$99.99
$40.00
$5.97
ILLUSTRATIVE ESTIMATED PROFIT
$28.45
28.45%Margin
71.13%ROI
Cost visibility
Marketplace feesModeled
Fulfilment / shippingUser input
Advertising / otherUser input
OutputProfit · Margin · ROI
How it works
Three steps from marketplace costs to clearer profit decisions.
Start with the channel you sell on, enter the economics of the product, and review the modeled result with the assumptions kept visible.
01
Choose a marketplace
Select Amazon, Shopify, Etsy, TikTok Shop or eBay so the calculator starts with the relevant marketplace model.
02
Enter your economics
Add selling price, product cost, fulfilment, shipping, advertising and other costs that shape your unit economics.
03
Review your real outcome
See modeled profit, margin and break-even economics, then compare channels before making your next selling decision.
Simple inputs. Visible assumptions. A clearer view of what is left after marketplace and operating costs.
Core calculators
Profit tools built around the decisions ecommerce sellers make every day.
Start with your overall unit economics, compare channels, or use a focused calculator for pricing, landed cost, margin and advertising decisions.
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Flagship tool
Marketplace Profit Calculator
Bring selling price, product cost, fulfilment, shipping, advertising and marketplace fees into one clearer profitability model.
Marketplace-specific logic
Profit & margin
Break-even economics
Cost visibility
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Decision tools
Go beyond one calculation.
Test the variables that change ecommerce profitability before you adjust pricing, commit to inventory or expand to another channel.
Explore All Tools →Marketplace coverage
Understand profitability across the channels that shape ecommerce.
Each marketplace has a different fee structure and operating model. Ecomly Profit keeps those differences visible so you can evaluate channels with better context.
A
Marketplace
Amazon
Model selling economics with category-sensitive marketplace costs and other relevant seller inputs.
Explore Amazon calculator →S
Commerce platform
Shopify
Evaluate store economics using payment, operating and acquisition costs that affect direct-to-consumer margin.
Explore Shopify calculator →E
Marketplace
Etsy
Estimate profitability while accounting for listing, transaction and other seller costs relevant to your inputs.
Explore Etsy calculator →T
Social commerce
TikTok Shop
Model product economics where marketplace fees, affiliate activity and fulfilment choices can influence margin.
Explore TikTok Shop calculator →e
Marketplace
eBay
Review selling economics with marketplace charges, product costs and operating inputs brought into one model.
Explore eBay calculator →⇄
Cross-channel analysis
Compare marketplaces
Use a consistent set of business inputs to compare modeled economics across multiple ecommerce channels.
Start comparison →Why Ecomly Profit
Built to make ecommerce economics easier to understand.
Ecomly Profit turns scattered marketplace costs and operating inputs into a clearer decision framework—while keeping assumptions visible instead of hiding them behind a single number.
Transparent assumptions
Marketplace fees and business costs are modeled with context so you can understand what is driving the result.
Marketplace-aware
Amazon, Shopify, Etsy, TikTok Shop and eBay are treated as different selling environments—not one generic fee model.
Profit visibility
Bring revenue, fees and operating costs together to get a more useful view of modeled net profit and margin.
No black-box resultInputs and assumptions stay visible.
No universal-fee claimsMarketplace differences remain explicit.
No inflated promisesBuilt for analysis, not hype.
Guides & resources
Practical ecommerce guidance built around profit, fees and better decisions.
Use the calculators for the numbers, then go deeper with clear explanations of marketplace costs, pricing, margin and unit economics.
Profit Fundamentals
Understand what actually drives ecommerce profit.
Learn how product cost, fulfilment, marketplace fees, advertising and pricing interact before you make a selling decision.
Browse profit guides →Fees & margins
Marketplace fees explained
See how common marketplace charges can affect contribution margin and why fee assumptions need context.
Read guides →Pricing
Price for sustainable margin
Use pricing decisions together with costs and fees instead of relying on revenue or markup alone.
Read guides →Unit economics
Know your break-even point
Understand the relationship between selling price, margin, advertising and the level where profit disappears.
Read guides →Trust & transparency
Clear assumptions. Clear limitations. Better-informed decisions.
Ecomly Profit is designed as an analytical tool—not a promise of future earnings. We keep the model understandable so you can evaluate the result in the context of your own business.
Review our methodology →✓
Calculations are estimates
Results depend on the inputs and assumptions you provide and should be reviewed against your actual costs.
✓
Marketplace fees can change
Fees may vary by category, region, seller plan, fulfilment method, promotion and marketplace policy.
✓
Assumptions stay visible
Our goal is to show what drives the model rather than present a black-box profitability number.
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Independent analytical resource
Ecomly Profit is not presented as an official calculator of Amazon, Shopify, Etsy, TikTok Shop or eBay.
Ready to run the numbers?
Know the economics before you make the next ecommerce decision.
Model your costs, marketplace fees, margin and break-even economics with a clearer view of what may be left as profit.