Finance calculators

Amazon Profit Calculator

Updated Aug 22, 2026 By Jehan Wadia
Rate Formulas
Calculator Mode
Advanced adds storage, prep, PPC, returns and overhead inputs.
Fulfillment Type
FBA = Fulfilled by Amazon. FBM = Fulfilled by Merchant.
Individual accounts pay a per-item fee on every unit sold.
Marketplace & Category
Non-US fee schedules are region-scaled estimates.
Sets the referral fee rate and any media closing fee.
ASIN Lookup (Optional)
10-character ASIN. Auto-fill may be blocked by Amazon; manual entry always works.
Revenue
Price the buyer pays for the item itself.
Amount collected from the buyer for shipping (adds to revenue).
Product Costs
Per-unit manufacturing or wholesale purchase cost.
What YOU actually pay to ship each unit to the buyer (FBM) or extra freight.
FBA Product Size & Weight
Dimensional weight is used automatically when it is larger.
FBA Storage, Prep & Inbound
Oct–Dec uses the peak-season storage rate.
Auto-filled from your dimensions — override if you know the true cube.
Additional Costs
Choose a percentage of selling price or a flat per-unit amount.
Drives the monthly and annual profit projection.

Profitability Results

Estimated Net Profit / Unit
$0.00
Profit
Net Profit Margin
0.00%
Net profit ÷ total revenue
ROI
0.00%
Net profit ÷ total costs
Break-Even Price
$0.00
Price where profit = 0
Monthly Net Profit
$0.00
at 0 units / month
Annual Net Profit
$0.00
Monthly × 12
Size tier Billable weight Referral rate
Itemized Cost Breakdown
Line Item Amount % of Revenue
Step-by-Step Solution
Where Every Sale Dollar Goes
SegmentAmountShare of Revenue
Cost & Fee Composition
Cost CategoryAmountShare of Total Costs

Introduction

The Amazon Profit Calculator shows you how much money you really keep from each sale on Amazon. You type in your selling price and your costs. The calculator takes out Amazon's fees and shows your net profit per unit, your profit margin, your ROI, and your break-even price.

Amazon takes a cut of every order. There is a referral fee based on your product category. If you use FBA, there is also a fulfillment fee based on your item's size and weight, plus monthly storage fees. Add your product cost, shipping, ads, and returns, and a sale that looks good can turn into a loss. This tool does the math for you so you know before you buy stock.

Pick your marketplace, your category, and FBA or FBM. Quick Mode asks for just the basics. Advanced Mode adds storage, prep, labeling, inbound shipping, PPC ad spend, returns, and overhead, plus a monthly and yearly profit forecast. You get a full cost breakdown, step-by-step math, and charts that show where every dollar of your sale goes.

Use it to price new products, check if a supplier deal is worth it, or find out why your margins are thin. It works for 16 Amazon marketplaces in their own currency, and it handles both inches/pounds and centimeters/kilograms. If you only need the fee side of the equation, the FBA Calculator and the Amazon Revenue Calculator cover that in fewer steps.

How to use our Amazon Profit Calculator

Enter your product price, your costs, and your item size and weight. The calculator works out your Amazon fees and shows your net profit per unit, profit margin, ROI, break-even price, and a full cost breakdown with charts.

Calculator Mode: Pick Quick Mode for a fast profit check. Pick Advanced Mode to add storage, prep, ads, returns, and overhead costs.

Fulfillment Type: Choose FBA if Amazon ships your orders, or FBM if you ship them yourself.

Seller Account Type: Choose Professional if you pay the monthly plan fee, or Individual if you pay a fee on each unit sold.

Amazon Marketplace: Pick the Amazon site you sell on. This sets the currency and the fee rates used. If you need to convert your earnings back to your home currency, use the Currency Calculator.

Product Category: Pick the category your item is listed in. This sets your Amazon referral fee rate and adds a closing fee for media items like books and DVDs.

Amazon ASIN (optional): Type the 10-character ASIN if you want to try a product lookup. Amazon often blocks this, so you can just type the details in by hand.

Selling Price: Enter the price a buyer pays for your item. The Markup Calculator helps if you price up from cost.

Shipping Charge to Buyer: Enter any shipping money you collect from the buyer. Put 0 if shipping is free.

Product Cost / COGS: Enter what one unit costs you to buy or make. Remember to include import customs duty if you source overseas.

Your Shipping Cost (Outbound): Enter what you pay to ship one unit to the buyer. FBA sellers can leave this at 0. FBM sellers can check rates with the USPS Shipping Calculator or the UPS Shipping Calculator.

Length, Width, and Height: Enter your packed box size and pick inches or centimeters. These set your FBA size tier.

Packaged Item Weight: Enter the weight of the packed unit and pick lb, oz, kg, or g. The tool uses dimensional weight instead if it is higher — see the Volumetric Weight Calculator for how that is worked out.

Storage Month: Pick the month you store stock. October to December costs more because of the holiday peak rate.

Storage Space per Unit: This fills in from your size inputs. Change it if you know the real cubic size. The Cubic Feet Calculator and CBM Calculator are handy here.

FBA Prep Fee: Enter what you pay per unit for bagging, bubble wrap, or other prep.

Labeling Fee: Enter what you pay per unit for FNSKU labels or stickers.

Inbound Shipping to Amazon: Enter the cost per unit to send stock to the fulfillment center. For pallet freight, the Freight Class Calculator can help you estimate.

PPC / Ad Spend per Unit: Enter your ad cost for each unit sold. The CPM Calculator and Conversion Rate Calculator help you work this number out.

Return / Refund Allowance: Enter money set aside for returns. Choose a percent of your price or a flat amount.

Miscellaneous / Overhead: Enter any other cost per unit, like software or packaging inserts.

Estimated Monthly Unit Sales: Enter how many units you expect to sell each month. This gives you monthly and yearly profit numbers.

Press Calculate to see your results, or Reset to start over.

Amazon Seller Profit: What You Actually Keep

When you sell on Amazon, the price a buyer pays is not the money you keep. Amazon takes fees out of every sale. You also pay for the product itself, shipping, ads, and returns. Your real profit is what is left after all of that. Many sellers pick a price that looks good but ends up losing money once the fees are counted.

The Main Amazon Fees

Every sale has a few common costs:

  • Referral fee: Amazon's cut of the sale. It is usually 15% of the total price, but some groups are different. Electronics and computers are about 8%. Clothing is about 17%. Jewelry starts at 20%. The fee is charged on the item price plus any shipping the buyer paid.
  • FBA fulfillment fee: If Amazon picks, packs, and ships for you, they charge a flat fee per unit. The fee depends on the size tier and weight of your package, not your price.
  • Storage fee: A monthly charge based on how much space your stock takes up in the warehouse. It goes up a lot from October to December.
  • Closing fee: A flat extra fee on books, music, movies, software, and video games.
  • Per-item fee: Individual plan sellers pay a small fee on each unit sold. Professional plan sellers pay a monthly subscription instead.

Selling on more than one channel? Compare the fee load with the eBay Fee Calculator, the Etsy Fee Calculator, and the PayPal Fee Calculator.

Size Tiers and Billable Weight

Amazon does not always use your real product weight. It compares the real weight to the dimensional weight, which is length × width × height ÷ 139. Whichever number is bigger becomes your billable weight. That means a big, light box can cost as much to ship as a small, heavy one. Shrinking your packaging by even an inch can drop you into a cheaper size tier and save money on every single order.

FBA or FBM

With FBA, Amazon stores and ships your items. You pay fulfillment and storage fees, but you get Prime shipping and Amazon handles returns. With FBM, you ship the orders yourself. You skip FBA fees but pay for boxes, labels, postage, and your own time. FBA usually wins for small, light, fast-selling items. FBM often wins for heavy, bulky, or slow-selling items. If you restock from overseas, factor in your supplier lead time so you do not run out mid-season.

Costs Sellers Forget

Fees are only part of the story. Real profit also has to cover the cost to send stock into Amazon (inbound shipping), prep and labeling, PPC ad spend, and refunds. Ads alone can eat a few dollars per unit. A safe habit is to set aside 2% to 5% of your price for returns and damaged stock. Don't forget income taxes either — the Self Employment Tax Calculator and the Sales Tax Calculator cover what happens after the profit lands.

Margin, ROI, and Break-Even

Net margin is your profit divided by your revenue. It shows how much of each sale you keep — see the Margin Calculator and the Gross Profit Margin Calculator for the raw formulas. ROI is your profit divided by your costs. It shows how hard your cash is working. Break-even price is the lowest price you can charge without losing money, and the Break Even Calculator shows the unit volume side of the same idea. Most healthy Amazon products land near a 15% to 30% net margin and 50% or more ROI. If your margin is thin, one price drop from a competitor or one fee change can push you into a loss.

Ways to Improve Profit

  • Lower your product cost by ordering more units or finding a better supplier.
  • Make your package smaller or lighter to cut the FBA fee.
  • Send in less stock at a time so storage fees stay low, especially before the holidays.
  • Cut wasted ad spend by pausing keywords that do not sell, and watch your customer acquisition cost against customer lifetime value.
  • Test a slightly higher price. A small raise often adds more profit than more sales at a low price.
  • Run any restock loan or credit line through the Business Loan Calculator before you commit to the interest.

Fee rates and FBA charges change over time and are different in each Amazon marketplace. Always check the current fee schedule in Seller Central before you commit to a price or place a big order. For a wider view of your store's numbers, try the Profit Calculator, the Revenue Calculator, and the EBITDA Calculator.

Formulas used

Total Revenue per Unit
R = P + S_{buyer}
Amazon Referral Fee (tiered, with minimum)
F_{ref} = \max\left(\sum_{i} r_i \cdot \min(R, c_i \cdot k) - \text{prev}_i,\; F_{min}\right)
FBA Billable Weight (dimensional vs actual)
W_{bill} = \max\left(W_{actual},\; \frac{L \times W \times H}{139}\right)
Monthly Storage Fee
F_{stor} = V_{ft^3} \times r_{stor} \times k, \qquad V_{ft^3} = \frac{L \times W \times H}{1728}
Total Amazon Fees
F_{amz} = F_{ref} + F_{close} + F_{FBA} + F_{stor} + F_{item}
Total Costs and Net Profit per Unit
C_{total} = COGS + F_{amz} + C_{ship} + C_{other}, \qquad \Pi = R - C_{total}
Net Margin and ROI
M = \frac{\Pi}{R} \times 100\%, \qquad ROI = \frac{\Pi}{C_{total}} \times 100\%
Break-Even Selling Price
P_{BE} + S_{buyer} - F_{ref}(P_{BE} + S_{buyer}) - C_{fixed} - r_{ret} \cdot P_{BE} = 0

Frequently asked questions

Does the calculator include the monthly Professional plan fee?

No. The Professional plan is a flat monthly fee, not a per-unit fee, so it is not part of your per-unit profit here.

To count it, take the monthly fee and divide it by how many units you sell that month. Then add that amount to the Miscellaneous / Overhead box in Advanced Mode.

Why is my profit negative when my price is much higher than my product cost?

Fees add up fast. On a $25 item you might pay about $3.75 as a referral fee, $5 or more for FBA, plus ads, returns, and inbound shipping.

Look at the Itemized Cost Breakdown table. The biggest line is usually the FBA fee or your ad spend. Fix that line first.

Why is the referral fee charged on the shipping I collect from the buyer?

Amazon counts the item price plus buyer shipping as one total. The referral fee is taken from that whole amount.

So charging $20 plus $5 shipping is treated the same as charging $25 for fee purposes. The calculator does this the same way.

What is the minimum referral fee?

Amazon charges a small floor amount on most items, about $0.30 in the US. If your percent fee comes out lower, you still pay the floor.

This matters for cheap items. On a $1.50 item, the floor can be bigger than the percent.

Why did the ASIN lookup fail?

Amazon blocks product data requests that come straight from a browser. That is a limit on their side, not a bug in this tool.

Open the listing, copy the price, size, weight, and category, and type them in. The results are exactly the same either way.

Are the fees for non-US marketplaces exact?

No. Only the US numbers follow the published US fee table. Other marketplaces are scaled estimates in the local currency.

Use them to compare products and spot bad deals. Check Seller Central for the exact fee before a big order.

Should FBM sellers fill in the size and weight boxes?

No. When you pick FBM, the size and weight section is hidden because Amazon does not charge you a fulfillment fee.

Instead, put what you really pay for postage and packing in the Your Shipping Cost (Outbound) box.

Why did my FBA fee jump when I made the box a little bigger?

FBA fees work in steps, not smooth lines. One extra inch or ounce can push you into the next size tier or weight band.

Try shrinking the box in the calculator by small amounts. You will see where the price steps down.

What number should I use for PPC ad spend per unit?

Take your total ad spend for a month and divide it by the units you sold that month, including sales that came without ads.

If you are new and have no data, $2 to $4 per unit is a common starting guess for a new launch.

Does this include sales tax or VAT?

No. The tool works with pre-tax numbers only. Amazon collects and sends sales tax in most places, so it is not your income.

Income tax is also not included. Your net profit here is before you pay tax on it.

Why does the bar chart not show my loss?

A stacked bar can only show parts of a whole, and a loss is not part of your revenue. So the chart shows costs only when profit is negative.

The loss amount still shows in the table right under the chart, and in the big red result card.

What does a referral rate like 20% + 5% mean?

Some groups use tiers. Jewelry charges 20% on the first $250 and 5% on the rest. Watches charge 16% on the first $1,500, then 3%.

The calculator splits your price across the tiers for you and adds the parts together.

Should inbound shipping be per unit or the whole shipment?

Per unit. Take what the whole shipment costs to send in and divide it by the number of units in it.

Example: $450 freight for 600 units is $0.75 per unit.

Why is my ROI so much higher than my margin?

They use different bottom numbers. Margin divides profit by revenue. ROI divides profit by your costs.

Because costs are smaller than revenue, ROI is almost always the bigger number. Margin shows how safe a sale is. ROI shows how fast your cash grows.

How do I use this for a bundle or multipack?

Treat the bundle as one product. Add up the cost of every piece for the COGS, and use the size and weight of the finished packed bundle.

The selling price is the one price the buyer pays for the whole bundle.

Does the break-even price include my ad spend and returns?

Yes. In Advanced Mode it includes every cost you typed in, including ads, returns, prep, and storage.

If your return allowance is a percent of price, the tool solves for it, since the allowance changes as the price changes.

What counts as Other Costs in the charts?

Other Costs groups your prep fee, labeling fee, PPC ad spend, return allowance, and any overhead you added.

Amazon Fees covers the referral fee, closing fee, FBA fee, storage, and the Individual per-item fee.

Why is my storage fee only a few cents?

Storage is charged for one month of space for one unit. Most small items take up well under a tenth of a cubic foot.

It grows fast if stock sits for months or if you store it from October to December. Test both to see the gap.

Does it count Amazon's return processing fee?

Not as its own line. Use the Return / Refund Allowance box to cover refunds, return fees, and stock you cannot resell.

Two to five percent of your price works for most items. Use more for clothing and shoes, which get returned a lot.

Why do my numbers not match my Seller Central payout report?

This tool gives an estimate for one unit at one price. Real payouts mix in coupons, promos, refunds, storage true-ups, and fee changes.

Use it to plan and price. Use your reports to check what really happened.

Can I use it before I buy any stock?

Yes, and that is the best time. Put in your supplier quote, the box size, and the price you plan to charge.

If the profit is thin at that price, walk away or ask the supplier for a better cost before you order.

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