Amazon ACoS calculator

Calculate ACoS with clarity Instant ACoS, ROAS, profit, and margin—by marketplace

Input ad spend and sales, choose a marketplace currency, and get the core metrics you need to interpret performance. This tool uses transparent formulas and never guesses missing inputs.

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Performance dashboard and ad metrics

Commerix Systems tool

Global marketplace calculator

Select a marketplace currency, enter ad spend and total sales, then calculate your metrics. Profit and margin here are calculated as \(sales - ad\\ spend\) and \((profit / sales)\\times 100\).

Commerix Systems
Global Amazon Marketplace Calculator
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ACOS —
ROAS —
Profit —
Margin —
Note: “Profit” and “Margin” here do not include COGS, fees, refunds, or shipping—add those to your internal model for true contribution.

How it works

Calculate your Amazon ACoS in 3 steps

01

Enter ad spend

Input the total ad spend for the period you are analyzing.

02

Input total sales

Use the corresponding total sales number for the same window.

03

Get instant metrics

ACoS, ROAS, and simple profit/margin output refresh instantly.

FAQ

Common questions about ACoS

ACoS (Advertising Cost of Sales) is ad spend divided by attributed sales, expressed as a percentage. Lower ACoS often means higher efficiency, but targets depend on margin and lifecycle.

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Testimonials

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“We were flagged with an account risk warning and sales were sliding. Aqib’s team fixed compliance issues, rebuilt our listing hygiene, and stabilized the account within days.”

Sana K.
Founder, Home & Kitchen brand
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“Our last 30 days were down and YoY was even worse. They restructured campaigns, tightened search terms, and rebuilt the budget logic—performance turned around without burning cash.”

James M.
Marketplace Lead, Consumer Electronics
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“We hit strong item-sales growth over a 30‑day window after Aqib’s playbook: better creatives, cleaner catalog structure, and a disciplined PPC rebuild. Reporting was simple and honest.”

Ayesha R.
GM, Apparel & Accessories
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“The onboarding was tight: audit → priorities → execution. Within two weeks we had a clear roadmap, a fixed catalog, and campaigns that finally matched our margins.”

Daniel L.
COO, Multi-channel retailer
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“They don’t just run ads—they fix the whole system. We got better PDPs, better reviews velocity, and a weekly cadence that kept every stakeholder aligned.”

Noah P.
Director of Growth, Beauty
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“Aqib is hands-on. He caught issues our previous agency missed—search term waste, broken variations, and policy risk. The fixes were fast and measurable.”

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Owner, Sports & Outdoors
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“We needed structure: naming, targeting, negative strategy, and budget pacing. The new framework made our results predictable—and easier to scale.”

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Ecommerce Manager, Health
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“Communication was the difference. Weekly updates, clear next steps, and no fluff. We always knew what was changing and why—and the business finally felt under control.”

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Brand Manager, Pet Supplies

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