Amazon Margin Calculator
FBA fees and margin.
FBA fees and margin.
How to use Amazon Margin Calculator
- Enter sale price, product cost, and referral fee percent
- Add your FBA fee and any other costs
- Read your net profit, margin, and ROI per unit
About Amazon Margin Calculator
The Amazon FBA Calculator works out the real profit on a product after Amazon takes its cut. Enter your sale price, product cost, the referral fee percentage for your category, the FBA (pick, pack and ship) fee, and any other per-unit costs like inbound shipping, storage or advertising. It instantly returns net profit per unit alongside your profit margin, ROI, and the total fees Amazon and fulfilment are charging.
Because it itemises every deduction, this one tool doubles as an FBA fee calculator, a cost calculator, and a pricing calculator, and works like Amazon's own FBA revenue calculator without the sign-in. Want to know whether a product clears your target margin? Nudge the sale price until profit and margin look right. Comparing two suppliers? Drop each landed cost in and see which one leaves more per sale. Checking profitability before you commit to a first order? The ROI figure shows how hard your money is working, not just the raw dollars.
It's a free alternative to paid seller tools and scouting apps — no account, no sign-up, and no cap on how many products you run. Everything is calculated locally in your browser, so your prices, costs, and margins are never uploaded, saved, or shared, which makes it safe for modelling confidential supplier pricing or products you haven't launched yet.
Frequently asked questions
- How is Amazon profit margin calculated?
- Net profit is your sale price minus product cost minus total fees, where fees are the referral fee (sale price times the referral percentage) plus the FBA/fulfilment fee plus any other costs. Margin is net profit divided by sale price, and ROI is net profit divided by product cost.
- Can I use this as an Amazon FBA revenue calculator?
- Yes. It works the same way as Amazon's FBA revenue calculator: you give it a sale price and your costs, and it shows exactly what you keep after referral and FBA fees. The difference is that it runs free in your browser with no seller account or login required.
- How do I work out my total Amazon FBA costs per unit?
- Add the referral fee (price times the referral percentage), the FBA fulfilment fee, and anything you put in the 'other costs' field, such as inbound shipping, prep, storage, or ads. The calculator sums these into a single total-fees figure and subtracts it, along with product cost, from your sale price.
- What price should I sell at to hit my target margin?
- Enter your product cost and fees, then adjust the sale price up or down until the margin percentage matches your goal. Because the referral fee is a share of the price, the fees recalculate as you change it, so you can quickly find the lowest price that still hits the margin you need.
- How much are Amazon FBA fees?
- Amazon charges a referral fee (a percentage of the sale price, usually around 15%) plus an FBA fulfilment fee based on the item's size and weight. Enter both figures for your specific product here to see the exact dollar amount Amazon takes from each sale.
- What referral fee percentage should I use?
- Amazon referral fees vary by category and are most commonly around 15%, which is the default here. Some categories run from 8% to 17%, so check the referral rate for your specific product category for an exact figure.
- Does this include FBA fees?
- Yes. There's a dedicated FBA/fulfilment fee field (defaulting to $3.50) so you can add Amazon's pick, pack, and ship charge. Use the 'other costs' field for extras like shipping to Amazon, storage, or advertising cost per unit.
- What's the difference between margin and ROI?
- Margin measures profit as a share of your selling price (profit divided by price), while ROI measures profit against what you spent to buy the product (profit divided by cost). ROI is usually the higher number and is handy for judging how hard your money is working.
- Is this the same as the Amazon Scout or AMZScout FBA calculator?
- No, this is an independent free tool and isn't affiliated with Amazon or any third-party scouting app. It does the same core job — profit, fees, margin, and ROI on an FBA product — without an account or extension, though it won't pull a listing's live fees for you; you enter the figures yourself.
- Is this calculator free to use?
- Yes, it's 100% free with no account, no sign-up, and no limits on how many calculations you can run.
- Is my data uploaded or stored anywhere?
- No. All calculations happen locally in your browser. Your prices, costs, and fees are never sent to a server, saved, or shared.