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Know if your product actually makes money
17 calculators that subtract every fee, not just the obvious ones — marketplace cut, payment processing, real postage. Enter your numbers, get the answer, see exactly where the money went.
Start here
Which channel pays you most?
One product, ranked by net profit across Etsy, eBay, Amazon FBA, FBM and your own store. Every other tool in this market belongs to a platform with a stake in the answer.
A worked example, start to finish
A $32 mug earning $7.94 an order, taken to $15.64 with the arithmetic shown at every step — and no new customers.
All 17 calculators
Profit Margin Calculator
Net profit, net margin and markup with every fee subtracted.
Etsy Fee Calculator
All four Etsy fees, including the 6.5% charged on your shipping.
Amazon FBA Profit Calculator
Profit per unit, margin and ROI before you order stock.
Freelance Hourly Rate Calculator
The rate you must charge after tax, expenses and unbillable hours.
Break-Even Calculator
How many units you must sell before you stop losing money.
Marketplace Comparison Calculator
One product, every channel side by side — which one actually pays you most.
Shipping Cost Calculator
What postage really costs you versus what you charge — per order and per year.
Discount Impact Calculator
What a sale really costs — and how much extra volume it needs just to break even.
Freelance Tax Set-Aside Estimator
How much of each invoice to set aside so tax season is not a shock.
Reorder Point Calculator
When to reorder, how much safety stock, and the cash that sits in it.
International Pricing Calculator
Price for another currency without losing the margin to FX and cross-border fees.
Break-Even ROAS Calculator
The ad return below which every sale loses money — and your true maximum CPA.
Return Cost Calculator
What your return rate does to margin — the cost is far more than the refund.
Bundle Pricing Calculator
Raise order value without discounting — and check the bundle still pays.
Payment Fee Calculator
The fixed fee that makes small orders expensive — compared across processors.
Wholesale Price Calculator
Set wholesale and retail prices that both work — without undercutting your stockists.
CAC Payback Calculator
What a customer costs, what they are worth, and which order pays you back.
Why most sellers overstate their profit
Almost every profit calculation done in someone's head has the same three holes in it: the fixed portion of the payment fee, the gap between postage charged and postage paid, and the marketplace fee charged on shipping as well as the item. Together they routinely turn a believed 50% margin into a real one closer to 30%.
Each calculator here shows a split bar under the result — the sale price divided into where it actually went. That picture, rather than the percentage, is usually what changes how someone prices.
Fee comparisons
Marketplace fees compared
What each platform charges, what it charges it on, and why the highest fee is sometimes the best outcome.
Etsy vs Shopify
Commission against subscription — the order volume where the answer flips.
Payment processors
Why the cheapest processor depends entirely on your average order value.
Guides
How to Calculate Profit Margin
The profit margin formula, the difference between gross and net margin, and the three mistakes …
Etsy Fees Explained
Every fee Etsy charges sellers — listing, 6.5% transaction, payment processing and Offsite Ads …
How Much Should I Charge as a Freelancer?
Work your freelance rate backwards from the income you need, after tax, expenses and the unbill…
What Is a Good Profit Margin for an Online Store?
Why there is no single correct margin figure, what actually determines a healthy one, and the t…
Break-Even Analysis for a Small Business
How to calculate your break-even point in units and revenue, and which of the three levers actu…
How to Price Handmade Products
A pricing method for handmade sellers that includes your time, real postage and platform fees —…