Amazon FBA Profit Calculator

Amazon FBA profit = Selling Price − Product Cost − Amazon Referral Fee − FBA Fulfillment Fee − Storage Fee − Advertising Cost − Inbound Shipping − Other Costs. Our calculator does this automatically and adjusts for your returns rate.

Amazon's referral fee is a percentage of the selling price charged on every sale — typically 8–17% depending on the product category. Electronics are usually 8%, most standard categories are 15%, and Clothing can reach 17%. Some specialty categories like Amazon Device Accessories go higher. The category dropdown in this calculator auto-fills the correct rate from Amazon's 2026 published schedule.

A healthy Amazon FBA profit margin is 20–30% after all fees. Margins below 10% are risky — any price change or fee increase can wipe out profit. Aim for at least 15% net margin before scaling.

Returns cost more than just lost revenue. On a returned unit, you can't recover the variable costs already spent — product cost, inbound shipping, ad spend, and storage — and Amazon keeps a refund administration fee on top. At a 10% returns rate, those 10 returned units per 100 don't just generate less profit; they actively subtract cost from your monthly total. The calculator models this honestly rather than simply reducing unit count.

Break-even price is the minimum selling price to cover all costs with zero profit. It's calculated as: (All fixed per-unit costs) ÷ (1 − Referral Fee Rate). If your break-even is close to your selling price, the business is fragile.

Amazon product ROI = (Net Profit per Unit ÷ Product Cost) × 100. An ROI of 50% means for every dollar you tie up in inventory, you earn 50 cents of net profit when it sells. Most successful sellers target 30–50%+ ROI — below 30%, your capital is often working harder in other investments than in FBA inventory.

Yes — it covers US, UK, India, Canada, Australia, UAE, Singapore, Germany, and France. The underlying fee math is the same everywhere; what changes per marketplace is the referral fee schedule, the FBA fulfillment rate, the Pro Seller subscription cost, and the local currency. Select your marketplace in the Setup section and the correct values fill in automatically.

FBA (Fulfilled by Amazon) profit deducts Amazon's pick/pack/ship and storage fees; FBM (Fulfilled by Merchant) profit replaces those with your own shipping and labour costs. FBA is usually higher cost per unit but wins the Buy Box more often and unlocks Prime — FBM gives better margin control on bulky/low-velocity items.

Long-term storage fees hit units sitting in Amazon warehouses for 365+ days and can exceed the original product cost on slow-moving SKUs. Model inventory turnover before stocking a new product — use the Aged Inventory selector in the Advanced section to stress-test the worst case, then liquidate or promote before the 365-day mark.

30–50% ROI on COGS is the minimum target most successful FBA sellers set — 50–100% is considered strong and 100%+ is exceptional. ROI below 30% means your inventory capital is working harder for others than for you; at that level, high-yield savings accounts often beat it.

Four levers move the most cost: (1) optimise packaging dimensions to drop a size tier — a 1-inch difference can save 30% per unit; (2) accelerate inventory turnover to cut storage; (3) verify your category's referral rate (some categories are mis-classified); (4) enrol low-priced items in FBA Small & Light. Combined, these often recover 10–20% of total fees.

For FBA sellers, shipping to the customer is bundled into the FBA fulfillment fee — Amazon doesn't take an additional cut. For FBM sellers, the referral fee is calculated on the total amount the customer pays including shipping, so Amazon effectively takes a percentage of your shipping revenue.

The math is exact — every formula is derived directly from Amazon's published fee structure. Accuracy depends on the inputs you provide. The most common source of error is using outdated referral rates or under-estimating advertising costs. For maximum accuracy, pull your last 30-day numbers from Seller Central and use real averages, not estimates.

BreakEven = FixedCosts ÷ (1 − ReferralRate). The referral fee is a percentage of the selling price, creating a circular dependency — a higher price means a higher fee. Solving algebraically breaks that loop and gives the exact minimum price where revenue equals all costs.

All calculations happen entirely in your browser — no data is stored or sent to a server. To save a snapshot, use your browser's print-to-PDF function or copy individual values. We're working on a dedicated export feature; in the meantime, the URL state will be preserved on reload during the same session.

At minimum, recalculate whenever Amazon updates fee schedules (typically January and June), when your supplier renegotiates pricing, or when you adjust ad spend by more than 20%. High-volume sellers should re-run the model monthly to catch margin drift before it compounds.

Yes. Under Advanced fees you'll find a Storage Season selector. Off-peak (January–September) uses the base per-cubic-foot storage rate; Q4 peak (October–December) applies a ~3.08× multiplier reflecting Amazon's holiday-period rate for standard-size items. Your marketplace's specific rates are converted to your region currency in the results. Recommendation: ship inventory in September if you can, to avoid the spike.

The category dropdown auto-fills your referral fee from Amazon's published 2026 schedule — 8–17% for most categories, up to 45% for Amazon Device Accessories. Override the auto-filled rate anytime if your product falls into a tiered subcategory; each category's help text notes the exception.

The inbound placement service fee is Amazon's per-unit charge when you ship to a single fulfillment center instead of distributing inventory across multiple recommended centers. It scales with item size and varies by marketplace — sending to 4+ Amazon-recommended centers eliminates it entirely. Model both scenarios in the Advanced fees section.

The Low Inventory Level Fee (LILF) is a per-unit surcharge Amazon applies when your FNSKU inventory falls below 28 days-of-supply. Introduced in 2024 and raised to the 28-day threshold in 2026, the fee scales with shortage severity and varies by marketplace. Fix it operationally: order larger quantities or restock more frequently. Model the impact in the Advanced fees section.

Net profit is what YOU keep after every cost — Amazon's fees plus your own COGS, ads, and shipping. The payout per unit is what Amazon deposits in your bank: selling price minus only Amazon's cut. They differ because Amazon doesn't know your COGS or ad spend. Tracking both lets you reconcile your monthly payout statement against the model's expectation.

Use the Marketplace selector at the top of the Setup section. Switching it auto-fills the Pro Seller subscription cost in that marketplace's local currency. For other monetary inputs (selling price, COGS, etc.), also switch your region using the global region switcher in the navbar — that recalculates every monetary value at the latest exchange rate so the whole calculator stays consistent.