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Nova ACoS Calculator

Amazon ACoS Calculator: See If Your Ads Actually Make Money

Your ACoS looks fine. But are those campaigns actually profitable after fees, COGS, and returns? Nova connects ad spend to real product costs so you know for sure.

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Nova ACoS calculator showing PPC performance breakdown with ad spend, fees, COGS, and net profit per product

Free ACoS calculator

Calculate your ACoS and your break-even ACoS

ACoS tells you what share of ad revenue went to ads. Break-even ACoS tells you how high you can push before the sale stops making money.

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Sale price minus COGS, Amazon fees, shipping and refunds.

Your ACoS

24.0%

Break-even ACoS

27.2%

ROAS

4.17x

Headroom

+3.2 pts

Profit on ad sales

$158

You are under break-even ACoS, so these ad sales are still profitable.

Break-even ACoS on every SKU, calculated for you

Nova pulls real fees, COGS, PPC spend and refunds from Seller Central, then shows break-even ACoS per product. 14-day free trial, no card.

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Why ACoS Alone Doesn't Tell You If Ads Are Profitable

A 20% ACoS sounds great. But if your product margin is 18% after fees, every ad sale loses money. Here's what most sellers miss.

01

Amazon's ad console shows ACoS against

Amazon's ad console shows ACoS against revenue, not profit. A 25% ACoS looks efficient until your margin after fees and COGS is only 22%. Every 'profitable' campaign is actually losing money.

02

Break-even ACoS varies by product

Break-even ACoS varies by product. A supplement with 60% margins handles 40% ACoS easily. An electronics accessory at 15% margins can't survive above 12%. Per-SKU margin data is essential.

03

Fee changes shift your break-even ACoS

Fee changes shift your break-even ACoS silently. When Amazon raises FBA or storage fees, profitable campaigns can flip to unprofitable overnight. Static ACoS targets don't adapt.

04

Returns erode ad ROI invisibly

Returns erode ad ROI invisibly. You paid for the click, Amazon charged the referral fee, and the customer returned it. That sale went from profitable to a net loss, but ACoS still counts it.

See Nova in Action

ACoS connected to real margins. Not just ad metrics in isolation.

ACoS by Ad Type

See true profitability across Sponsored Products, Brands, and Display.

ACoS by Product

Break-even ACoS calculated per SKU using real fees and COGS.

ACoS vs TACoS

Compare ad efficiency against total business impact side by side.

Profit-Connected ACoS

ACoS displayed alongside CM1, CM2, CM3 margins per product.

Ad Type Performance

Compare SP, SB, and SD performance with profit context.

Multi-Marketplace ACoS

Track ad efficiency across 21 Amazon regions in one view.

PPC high-level overview showing ad spend, revenue, ACoS, and profitability across all campaign types
PPC performance per parent ASIN showing ACoS, ad spend, and profit contribution per product
PPC analytics grouped by product category showing ACoS, spend, and revenue per group

40+

Fee Types in ACoS Calc

Every Amazon fee deducted before calculating your true break-even ACoS.

99.8%

Cost Accuracy

Matched line-by-line against Amazon Settlement Reports.

23

Marketplaces

Compare ACoS performance across every Amazon region.

Find Your Break-Even ACoS in 5 Minutes

Connect your Seller Central and Advertising accounts. Nova calculates your break-even ACoS per product using real fees, COGS, and return rates. No spreadsheets needed.

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Nova vs Amazon Console vs Spreadsheets

Three ways to evaluate ACoS. Only one connects ads to actual profit.

CapabilityAmazon ConsoleSpreadsheetsNova
ACoS calculationAd spend / ad revenueManual formulaAutomatic, real-time
Break-even ACoSNot availableManual per productAuto per SKU
Fees in calculationNone5-10 (if you find them)40+ (automatic)
COGS connectedNoManual entryYes, per SKU
Returns impact on ACoSSeparate reportUsually missedAuto-deducted
ACoS vs TACoSSeparate viewsComplex formulasSide-by-side, live
Ad profitability per productRevenue onlyHours of calculationInstant, per ASIN
Multi-marketplaceSeparate consolesSeparate sheets21 marketplaces unified
Fee change impactNot trackedManual updatesAutomatic adjustment
Time investmentNone (limited data)Hours per week5 min setup, then zero

How It Works

From isolated ACoS numbers to profit-connected ad analytics in 5 minutes.

1

Connect Advertising API

Link both Seller Central and Amazon Advertising accounts via official APIs. Nova pulls campaign spend, impressions, clicks, and attributed revenue alongside your order and fee data.

2

See ACoS With Real Costs

Nova deducts all 40+ fee types, COGS, and return costs from your ad revenue. You get break-even ACoS per product and true ad profitability after all costs. Not just ad spend vs revenue.

3

Track Ad Profitability Per Product

Your ad dashboard updates automatically. When fees change or return rates spike, break-even ACoS adjusts in real time. Spot unprofitable products before they drain margin.

Who Uses Nova's ACoS Calculator?

From solo sellers optimizing 5 campaigns to agencies managing ad budgets across 100+ brands.

$10K - $500K/mo

FBA Sellers

  • Break-even ACoS per product
  • Spot unprofitable campaigns instantly
  • Connect PPC spend to net margins
  • Compare SP vs SB vs SD profitability
Most popular: Starter plan

$100K - $1M/mo

Brand Managers

  • Portfolio-level ad efficiency
  • ACoS trends by product category
  • Budget allocation based on margins
  • Export ad profitability reports
Most popular: Professional plan

$1M+/mo

Agencies & Aggregators

  • Client-level ACoS benchmarking
  • Multi-brand ad spend tracking
  • Cross-marketplace ACoS comparison
  • Export-ready PPC profitability reports
Most popular: Enterprise plan

ACoS is one piece of the profitability puzzle. See our TACoS Calculator, PPC Analytics Tool, Profit Tracker, and Profit Calculator.

What Is an Amazon ACoS Calculator?

An Amazon ACoS calculator measures how much of your ad-attributed revenue goes to advertising costs. The basic formula is simple: ad spend divided by ad revenue. But the basic formula misses a critical point. It doesn't tell you whether those ad sales are actually profitable.

A profit-connected ACoS calculator like Nova goes further. It deducts all 40+ Amazon fee types (referral, fulfillment, storage, returns, refund admin), your COGS, and shipping costs from ad revenue. What's left is your true margin on ad sales. That margin is your break-even ACoS: the maximum you can spend on ads without losing money.

Most sellers discover their break-even ACoS is 10-20% lower than they assumed. A product they thought could handle 30% ACoS actually breaks even at 18% after all costs are factored in. Nova calculates this per SKU, per marketplace, and updates it automatically as fees and costs change.

Loved by Amazon sellers worldwide

Verified 5-star reviews on Trustpilot and Reddit.

The P&L view captures everything Amazon-related

The P&L view is the big one. It captures everything Amazon-related with the granularity to track down every unexpected expense, giving me a real profit statement I can run the business off of. No more guessing margins or waiting for end-of-month reconciliation.

Yano profile

Yano

🇺🇸
Read on Reddit

Just go for it. You won't regret it

The Nova team has built something truly special. The days of clunky Looker Studio dashboards are over. They are communicative and collaborative, and work hard to make the platform as helpful as possible for their users.

Josh Grillo profile

Josh Grillo

🇺🇸
Read on Trustpilot

Exactly the kind of tool e-commerce needed

Nova is exactly the kind of tool the e-commerce industry has needed for a while. Fast-moving, responsive, and adding value to every Amazon business at every turn. The team is always open to hearing feedback and new ideas.

Steve H profile

Steve H

🇬🇧
Read on Trustpilot

A great team to work with

We had a great experience working with the Nova team. They were incredibly responsive, helpful and professional, and truly committed to improving the tool in ways that made it both simple and genuinely useful. It felt like they were invested in our success.

Jessica Christensen profile

Jessica Christensen

🇺🇸
Read on Trustpilot

Nova is great

Nova keeps us up to date across all of our client accounts and provides a unique set of analytics. The data is live, which lets us make quick decisions faster than with other tools. The events feature is excellent for logging listing changes and running lift tests.

Alexandr Kachurovskyi profile

Alexandr Kachurovskyi

🇩🇪
Read on Trustpilot

Replaced hours of reporting with one dashboard

I manage multiple brands and Cockpit, P&L and Day-to-Day are now part of my daily workflow. What used to take hours across multiple tools I now see in one place. Antoine and Maxime are clearly building this with real seller challenges in mind, and they listen.

Jake Zaratsian profile

Jake Zaratsian

🇺🇸
Read on Trustpilot

Top notch customer support

The team is genuinely responsive; they actually listen to concerns and implement suggestions into the tool, which is a big part of what makes it so powerful. The UI is clean and managing multiple accounts across marketplaces finally feels organized.

Angelo Raymundo profile

Angelo Raymundo

🇵🇭
Read on Trustpilot

A dependable solution for Amazon sellers

We use Nova to manage and analyze our Amazon marketplace data across multiple accounts and regions. Clean interface, useful business insights, and strong visibility into KPIs. Support is proactive and continuous improvements keep landing. Highly recommended.

Ashish Chaudhary

🇮🇳
Read on Trustpilot

A robust instrument with competitive pricing

After a couple of months on Nova, the platform delivers outstanding value. As an agency managing a diverse portfolio of sellers, Nova made onboarding and overseeing multiple merchant accounts effortless. The data centralization streamlined our day-to-day.

Pavel Zadorozhnyi

🇪🇸
Read on Trustpilot

Highly recommended

Running an agency that manages a large portfolio of Amazon brands, what we value most is the people. Nova has been a real partner from day one, adapting to how we work. Multi-store management sits in one clean place and the team actually listens to feedback.

Nimrod

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Simple, transparent pricing

Start free. Scale when you're ready.

14-day free trial • No credit card required • Cancel anytime

Sellers & Brand Owners

Full analytics. All marketplaces.

Starting at$29/month
Start 14-day free trial
  • Profit & loss analytics
  • PPC Analytics
  • Custom breakdowns
  • Buy Box %
  • BSR Tracker
  • Returns Analytics
  • Consolidated Data Exports
  • Priority support
Enterprise & Agency

Unlimited accounts. Dedicated support.

Custom
  • Unlimited orders
  • Unlimited accounts
  • Unlimited team seats
  • Advanced User Management System
  • Client-first view
  • Dedicated account manager
  • Custom data exports
  • SLA guarantees

Amazon ACoS Calculator: Frequently Asked Questions

Everything you need to know about calculating ACoS with real profit data.

ACoS (Advertising Cost of Sales) measures how much you spend on ads for every dollar of ad-attributed revenue. It's calculated as ad spend divided by ad revenue, expressed as a percentage. A 25% ACoS means you spent $0.25 for every $1 of ad sales.
There's no universal 'good' ACoS. It depends on your product margins. If your pre-ad margin is 30%, any ACoS below 30% is profitable. Nova connects ACoS to your actual margins per SKU, so you can see your break-even ACoS for every product instead of guessing.
ACoS only measures ad efficiency (ad spend / ad revenue). TACoS (Total Advertising Cost of Sales) measures ad spend against total revenue, including organic sales. TACoS gives you a better picture of how ads affect your overall business, not just the clicks they directly generate.
Nova calculates your break-even ACoS per product by subtracting all non-ad costs (Amazon fees, COGS, shipping, returns) from revenue. The remaining margin is the maximum you can spend on ads without losing money. This updates automatically as fees and costs change.
Yes. Nova pulls advertising data from all 21 Amazon marketplaces. You can compare ACoS performance across US, UK, Germany, and other regions, with automatic currency conversion and marketplace-specific fee deductions.
No. Nova doesn't manage bids, keywords, or campaigns. It connects your ad spend data to your real product costs (fees, COGS, returns) so you can see whether each campaign actually makes money. You still manage campaigns in Amazon's console or your PPC tool.
Under 5 minutes. Connect your Seller Central and Amazon Advertising accounts through Amazon's official APIs. Add your COGS, and Nova calculates profit-connected ACoS across your entire catalog automatically.
Nova starts at $29 per month with annual billing and includes a 14-day free trial. All plans include ACoS tracking, P&L analytics, PPC breakdowns, and custom reporting. No credit card required to start.

Stop Guessing If Your Ads Make Money. Start Knowing.

3,000+ sellers discovered their real break-even ACoS was lower than they assumed. Connect your account in 5 minutes and see your true ad profitability.

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