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Amazon FBA Calculator

Calculate net FBA profit and margin after Amazon fees.

Best for: Pricing a product, checking whether a SKU is viable, or comparing suppliers.

Complete guide
Currency / Country:

Input

Result

Estimate

Net profit per unit

$12

Profit margin
41.67%
Referral fee
$4.50
Standard formula Private — runs in your browser, no account

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More about this result
Result quality
Type
Industry Standard
Method
Industry-standard method
Confidence
High

Uses the standard formula and conventions the industry relies on.

What this means

Your estimated margin per unit. Watch that fulfilment and storage fees stack on top of the referral percentage, and that returns eat into margin.

Benchmark snapshot
Your Net Margin
41.67%
Typical
5-20% (varies by industry)
Status
Excellent

Source: General industry ranges · Updated June 2026

What impacts this result most?
  1. 1.
    Selling priceHigh impact

    Drives revenue and margin.

  2. 2.
    Product costHigh impact

    Your largest controllable cost.

  3. 3.
    FBA feesHigh impact

    Fulfilment and referral fees cut into each sale.

How to improve this result
  • Raise price or average order value
  • Lower product cost via sourcing
  • Reduce returns
3 Important insights
  • Margin (on price) and markup (on cost) are not the same.
  • Your break-even depends on fixed vs variable costs.
  • A small price increase moves profit more than a small cost cut.

Most business outcomes hinge on a couple of inputs - find the lever that moves the result most.

People usually ask next
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How it's calculated & sources
The Amazon FBA Calculator uses the standard formula for this calculation. It runs entirely in your browser, so your inputs are never uploaded. Figures are educational estimates, not professional advice — verify important decisions with a qualified expert. Last reviewed June 2026.
Key assumptions
  • Fee structure as entered
  • Excludes ads and returns unless entered

Free & no sign-up · runs entirely in your browser. Results are estimates for general information, not professional advice — verify important decisions with a qualified expert. Last reviewed June 2026.

How it works

Net profit = selling price − product cost − FBA fee − referral fee (a % of price). Margin = profit ÷ price.

Frequently asked questions

What is the Amazon referral fee?+

A percentage Amazon charges per sale, usually around 8–15% depending on category.

Continue your journey

Where people usually head next.

Complete guide

Quick answers

Short, sourced answers to the questions people (and AI assistants) ask most.

What is Amazon FBA?
An Amazon FBA calculator estimates your profit per unit selling through Fulfilment by Amazon, after Amazon's fees and your own costs.
Why does Amazon FBA matter?
It is the top line - every margin and profit figure starts from revenue.
How is Amazon FBA calculated?
Profit is the selling price minus your product cost, minus Amazon's fees, minus the cost of shipping inventory in. Amazon's fees are mainly a referral fee (a percentage that varies by product category) plus FBA fulfilment fees (based on the item's size and weight) and storage. Because fee rates change, always check Amazon's current fee schedule for exact numbers.
What is a good amazon fba?
5-20% (varies by industry)
What are common amazon fba mistakes?
Counting only the referral percentage and forgetting fulfilment and storage fees.
When should you use the Amazon FBA Calculator?
Pricing a product, checking whether a SKU is viable, or comparing suppliers.

What is the Amazon FBA Calculator?

An Amazon FBA calculator estimates your profit per unit selling through Fulfilment by Amazon, after Amazon's fees and your own costs.

How the Amazon FBA Calculator works

Profit is the selling price minus your product cost, minus Amazon's fees, minus the cost of shipping inventory in. Amazon's fees are mainly a referral fee (a percentage that varies by product category) plus FBA fulfilment fees (based on the item's size and weight) and storage. Because fee rates change, always check Amazon's current fee schedule for exact numbers.

  1. Enter your revenue — the total money a business earns from sales before any costs are subtracted.
  2. Enter your cost of goods sold (cogs) — the direct costs of producing what you sold - materials and direct labor.
  3. Enter your margin — profit expressed as a percentage of revenue.
  4. Read the result, then change any input to compare scenarios instantly — the Amazon FBA Calculator recalculates as you type.

Understanding the inputs

What each value means, why it matters, and a typical range — so you can fill in the calculator with confidence.

Revenue

The total money a business earns from sales before any costs are subtracted.

Why it matters:
It is the top line - every margin and profit figure starts from revenue.
Typical range:
Varies entirely by business size.
How it affects results:
  • Higher: More to cover costs and profit, if margins hold.
  • Lower: Less to cover costs and profit.

Common mistake: Confusing revenue (sales) with profit (what is left after costs).

Cost of Goods Sold (COGS)

The direct costs of producing what you sold - materials and direct labor.

Why it matters:
It is subtracted from revenue to get gross profit, the core of product economics.
Typical range:
Often 40% to 80% of revenue depending on the business.
How it affects results:
  • Higher: Lower gross margin.
  • Lower: Higher gross margin.

Common mistake: Including overheads like rent and admin, which are not direct costs.

Margin

Profit expressed as a percentage of revenue.

Why it matters:
A percentage lets you compare profitability across products and businesses of any size.
Typical range:
10% to 20% net margin is healthy for many businesses; under 10% is thin.
How it affects results:
  • Higher: More buffer and pricing power.
  • Lower: Less buffer against costs and price pressure.

Common mistake: Confusing margin (profit / price) with markup (profit / cost).

Benchmark reference

What counts as poor, average or excellent for this metric.

Net Margin

Poor<0%
Below average0-5%
Average5-10%
Above average10-20%
Excellent20%+

Source: General industry ranges · Updated June 2026

Typical values

Net Margin:
5-20% (varies by industry)

Common interpretation errors

  • Confusing gross and net margin
  • Excluding overheads, tax or fees

What impacts results most

  1. 1.
    Selling price (High impact)Drives revenue and margin.
  2. 2.
    Product cost (High impact)Your largest controllable cost.
  3. 3.
    FBA fees (High impact)Fulfilment and referral fees cut into each sale.

Key assumptions

  • Fee structure as entered
  • Excludes ads and returns unless entered

Common mistakes to avoid

  • Counting only the referral percentage and forgetting fulfilment and storage fees.
  • Ignoring returns, refunds and removal costs.
  • Leaving out the cost of shipping inventory to Amazon.
  • Using outdated fee rates instead of the current schedule.

Compared to alternatives

Amazon FBA vs Etsy fees

Two marketplaces with very different fee structures.

Amazon FBAEtsy
FeesReferral + fulfilmentListing + transaction + payment
FulfilmentAmazon handles itYou ship
Best forScale, commodity goodsHandmade / niche

Bottom line: Model both fee stacks against your price — FBA trades higher fees for hands-off scale.

How Net Margin connects to the concepts around it.

Gross Margin:
Revenue minus direct costs, as a percent of revenue.
Profit Margin:
Profit as a percentage of revenue.
Revenue:
Total money earned from sales before any costs.
ROAS:
Revenue earned for every unit spent on advertising.

Business Economics learning path

A sensible order to learn these concepts.

Reviewed sources & methodology

Methodology: Industry Standard · Last reviewed June 2026.

Keywords: amazon, fba, profit, fees.

This is an educational estimate, not financial advice. Rates, rules and figures change — verify the latest with the provider or a qualified advisor before you decide.

Sources: Amazon Seller Central — Selling fees (current schedule)

Reviewed by the Free Tools Galaxy editorial team · Updated June 2026 · Calculated privately in your browser.

Frequently asked questions

Is the Amazon FBA Calculator free to use?+

Yes. Every tool on Free Tools Galaxy is 100% free, runs in your browser and requires no signup.

How accurate is the Amazon FBA Calculator?+

Amazon FBA Calculator uses the standard amazon fba formula in double-precision arithmetic, so the same inputs always produce the same result and you can verify any figure by hand. It is an educational estimate — real-world outcomes depend on your actual rates, rules and assumptions.

Do you store my inputs?+

No. The Amazon FBA Calculator runs entirely in your browser. Nothing is uploaded or saved to a server.

Can I use the Amazon FBA Calculator on mobile?+

Yes — the interface is fully responsive and works on phones, tablets and desktops.

What are common mistakes to avoid?+

The most frequent mistake is mixing units. Double-check your inputs use a single, consistent unit before clicking Calculate.

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Calculate net FBA profit and margin after Amazon fees.

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