Free Amazon US tool · no login
One unit in. Every fee out. See what is actually left.
Turn price, packaged size, and operating costs into a per-unit P&L using Amazon's published 2026 US fee structure. Compare FBA with your own FBM assumptions without uploading an ASIN or handing over your cost data.
- Marketplace
- Amazon.com · United States
- Rate window
- Jan 15, 2026 – Jan 14, 2027
- Privacy
- Browser-only calculation
A complete unit, in three passes
Start with the order. End with the cash you keep.
The sequence matters: Amazon's fees depend on what sold and what shipped; your profit depends on every cost attached to that same unit.
01
Describe the sale
Enter the item price, customer-paid shipping, category, selling plan, forecast date, and monthly units. The date selects the correct fulfillment and storage season.
02
Measure the shipped unit
Use the final retail packaging at its widest points. Dimensions, weight, handling type, and SIPP status determine the size tier and fulfillment treatment.
03
Add the costs you control
Add COGS, inbound freight and prep, placement, ads, and other per-unit costs. Open the FBM section only if you have your own fulfillment cost assumptions.
Calculation method
One denominator, no hidden shortcuts.
- Revenue
- item price + customer-paid shipping
- Net profit
- revenue − Amazon fees − inventory, inbound, ad, and other costs
- Net margin
- net profit ÷ revenue
- Inventory ROI
- net profit ÷ (COGS + inbound freight and prep)
Questions behind the estimate
How accurate is this Amazon FBA profit calculator?
It is a planning estimate built from Amazon's published 2026 US fee schedules, not a Seller Central quote. The calculator applies the product category, packaged size, weight, fulfillment date, storage season, and options you enter. Account-specific charges and Amazon's final measurements can still change the amount, so confirm a launch or packaging decision in Seller Central Fee Preview.
Why is shipping charged to the customer included in revenue?
Because it is money collected on the order. Revenue in this calculator equals item price plus customer-paid shipping, and the referral-fee basis uses that total sales price. Leaving shipping out of either side makes the margin internally inconsistent.
What does the FBA versus FBM comparison include?
FBA uses the selected Amazon fee schedule. FBM uses only the receiving, pick-and-pack labor, packaging, outbound shipping, storage, and service or returns reserve you enter. It is a scenario comparison, not a live carrier or 3PL quote.
Does WAYAMZ receive or store my costs and profit?
No. The calculation runs in your browser and does not require an account, email address, or ASIN connection. The completion event contains only language, unit system, fee period, and whether FBM comparison was enabled — never prices, dimensions, costs, or profit.
Keep diagnosing the unit
Check the packaging cliff, inventory-fee exposure, or promotion economics with another free WAYAMZ tool.
Leave with a sharper next move.
We inspect the operating evidence with you, then write down the three priorities we would act on first.
- We review
- Listing, PPC, and market position
- You receive
- Three written priorities
Qualified requests receive a reply within one business day.