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The ROAS Formula Is Incomplete: How to Calculate ROAS for True Profitability

Let me ask you a question.
Have you ever presented a strong 5:1 ROAS to your leadership team, only to face tough questions later when the revenue numbers don’t match?
If you’ve ever been in that position, you know how frustrating it is.
It feels like your ad reports are telling one story, and the balance sheet is telling another.
Hi, I’m Ian Dionaldo.
For the past 13+ years, I’ve been in the trenches helping businesses like yours build predictable growth engines.
I’m here to show you how to calculate ROAS the right way.
This is the method that uncovers true profit and gives you numbers you can report to the C-suite with total confidence.
TL;DR: The 30-Second Guide to REAL ROAS
Your Dashboard Lies: The basic ROAS formula (
Revenue / Ad Spend
) is misleading because it ignores dozens of hidden costs.Find Your True Cost: To get an honest ROAS, you must include all costs: platform spend + agency/team salaries + creative costs + software fees.
Know Your Break-Even Point: Don’t chase random benchmarks. Calculate your Break-Even ROAS (
1 / Your Profit Margin
) to know the exact number you need to hit to be profitable.See the Whole Picture: ROAS is just one metric. For sustainable growth, you must also track your Marketing Efficiency Ratio (MER) for a total view, and your LTV-to-CAC Ratio to ensure you’re acquiring customers profitably.
What Is ROAS, Really?
ROAS stands for Return on Ad Spend.
It’s a simple metric that measures how much revenue you earn for every dollar you spend on advertising.
The textbook formula looks like this:
ROAS = Revenue from Ads / Total Cost of Ads
For example, if you spend $1,000 on ads and generate $4,000 in revenue, your ROAS is 4:1.
But as you’re about to see, the “Total Cost of Ads” is where most people get it wrong.
Why Your Dashboard ROAS Is Lying to You
That number you see in your Google or Meta Ads dashboard is incomplete.
It’s like an iceberg—you only see the tip, while the most dangerous parts are hidden underwater.
The Hidden Costs in Your ROAS Calculation
To find your true and honest ROAS, your cost calculation needs to include every cent spent to make a campaign happen.
Here is a checklist of costs you must include:
Ad Spend: The money paid directly to the ad platforms (Google, Meta, etc.).
Team Costs: The fees for your agency, freelancers, or a portion of your in-house team’s salaries.
Creative Costs: The money you spent on video production, graphic design, and copywriting.
Tool Costs: The monthly subscriptions for any marketing software you used for the campaign.
Forgetting these costs is the #1 reason why a “successful” campaign might not actually be profitable.

How to Calculate Your Real ROAS: A Step-by-Step Example
Theory is great, but let’s put this into practice with a real-world example.
Let’s imagine you run an e-commerce store and just finished a big monthly campaign.
Step 1: Add Up Your True Advertising Costs
First, we ignore the ad platform’s numbers and gather all our expenses.
Google Ads Platform Spend: $5,000
Agency Management Fee: $1,500
Freelance Graphic Designer: $500
Analytics Software Subscription: $100
Now, add them all up.
Total True Advertising Cost = $7,100
Step 2: Find Your Total Revenue from Ads
Next, look at your analytics or CRM to find the total revenue generated from this specific campaign.
Total Revenue = $25,000
Step 3: Do the Real ROAS Math
Now, we use the correct formula with our true costs.

Real ROAS = $25,000 / $7,100
Your Real ROAS = 3.52:1
Why This Matters: The Dashboard vs. Reality
Look at the difference.
Your Google Ads dashboard would only use the platform spend ($5,000).
It would tell you your ROAS is 5:1 ($25,000 / $5,000).
But your real, profitable ROAS is actually 3.5:1.
That’s a huge difference! 🤯
Knowing this number is the only way to make smart budget decisions and confidently report your marketing performance.
Schedule a Free Growth Roadmap Session
It’s a strategic chat, not a sales pitch, designed to give you clarity.
What Is a Good ROAS?
This is the golden question.
And the honest answer is: it depends.
A “good” ROAS for an e-commerce brand is different from a good ROAS for a SaaS company.
It all comes down to one thing: your profit margins.
How to Find Your Break-Even ROAS
Instead of chasing generic benchmarks, you need to find your break-even point.
This is the North Star for all of your advertising efforts.
Use this simple formula:

For example, if your profit margin is 25% (or 0.25), your break-even ROAS is 1 / 0.25 = 4.
This means you need a 4:1 ROAS just to get your money back. Anything above that is profit.
Beyond ROAS: Key Metrics for Sustainable Growth
ROAS is like the speedometer in your car. It’s important, but you can’t drive by only looking at it.
For true, sustainable growth, you need to watch the whole dashboard.
Here are the other numbers that matter.
ROAS vs. ROI
Return on Investment (ROI) is the big picture.
While ROAS only looks at ad spend, ROI factors in all your costs, including the cost of goods sold.
It tells you if your business venture as a whole is profitable.
Marketing Efficiency Ratio (MER)
MER is your 30,000-foot view.
The formula is:

It tells you how your entire marketing ecosystem is performing, not just a single ad campaign.
LTV to CAC Ratio
This is the holy grail. 📈
It compares your Customer Lifetime Value (LTV) to your Customer Acquisition Cost (CAC).
I helped a tech client shift their focus here, and we cut their acquisition costs by 40% while increasing LTV by 35%.
That’s how you build a business that lasts.
Click here to learn more about Customer Lifetime value.
Conclusion: Your Game Plan for True Profitability
Let’s wrap this up.
If you do one thing today, stop trusting the default ROAS in your ad dashboard.
Instead, calculate your true ROAS by including all your hidden costs.
Then, find your break-even ROAS to set a clear, meaningful target for your team.
When you get clear on your numbers, you stop guessing and start building a predictable engine for growth.
If you’re ready to get crystal clear on your marketing numbers for good, let’s chat.
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