Incremental Revenue
Observed revenue − Baseline revenueIsolates the revenue lift associated with the campaign assumptions.
Free campaign planning tool
Free Marketing ROI Calculator
Estimate whether a marketing campaign is creating profitable incremental revenue. Enter revenue, baseline revenue, gross margin, marketing costs and new customers to calculate margin-based marketing ROI, revenue-based ROI, ROAS, Marketing CAC and break-even incremental revenue.
- No signup required
- Margin-aware methodology
- Runs locally in your browser
Quick answer
What does marketing ROI measure?
Marketing ROI compares the return generated by marketing with the cost of producing that return.
Margin-based ROI is usually more useful for profitability decisions because revenue does not equal profit.
Revenue-based marketing ROI
((Incremental revenue − Total marketing cost) ÷ Total marketing cost) × 100Margin-based marketing ROI(((Incremental revenue × Gross margin) − Total marketing cost) ÷ Total marketing cost) × 100Calculator setup
Calculate your campaign ROI
Use one attribution method and one measurement period across every input. The calculator keeps ROAS separate from ROI so ad efficiency and overall marketing profitability are not mixed together.
Campaign inputs
Enter non-negative values. Baseline revenue can be higher than observed revenue when the campaign generated negative incremental revenue.
Margin-Based Marketing ROI
50%
Incremental gross profit equals $1.50 for every $1.00 of marketing cost before considering costs outside this model.
Positive in this measurement windowRevenue-Based ROI
150%
Incremental revenue vs total marketing cost
ROAS
8.33x
Ad-attributed revenue ÷ ad spend
Marketing CAC
$320
Total marketing cost ÷ new customers
Break-Even Incremental Revenue
$13,333
Total marketing cost ÷ gross margin
Incremental Revenue
$20,000
Observed revenue − baseline revenue
Total Marketing Cost
$8,000
Ad spend + other marketing costs
ROAS measures advertising efficiency. Margin-based ROI incorporates incremental revenue, gross margin and total marketing cost, so the two metrics can legitimately differ.
Worked example
See the same campaign through each metric
The default calculator values use this example so visitors can see a complete result before entering their own numbers.
Example inputs
- Observed revenue$50,000
- Baseline revenue$30,000
- Ad-attributed revenue$50,000
- Ad spend$6,000
- Other marketing costs$2,000
- Gross margin60%
- New customers25
01
Incremental revenue
$50,000 − $30,000 = $20,00002
Margin-based ROI
(($20,000 × 60%) − $8,000) ÷ $8,000 × 100 = 50%03
Revenue-based ROI
($20,000 − $8,000) ÷ $8,000 × 100 = 150%04
ROAS
$50,000 ÷ $6,000 = 8.33x05
Marketing CAC
$8,000 ÷ 25 = $32006
Break-even incremental revenue
$8,000 ÷ 60% = $13,333Methodology
Marketing ROI formulas
Revenue-Based Marketing ROI
((Incremental revenue − Total marketing cost) ÷ Total marketing cost) × 100Useful for a fast revenue-based comparison.
Margin-Based Marketing ROI
(((Incremental revenue × Gross margin) − Total marketing cost) ÷ Total marketing cost) × 100Use this when profitability matters.
ROAS
Ad-attributed revenue ÷ Ad spendUse this when comparing paid-media efficiency.
Marketing CAC
Total marketing cost ÷ New customersMarketing acquisition cost per new customer.
Break-Even Incremental Revenue
Total marketing cost ÷ Gross marginAdditional revenue required to cover marketing cost.
Compare the metrics
Marketing ROI vs ROAS vs CAC
These metrics are related, but they are not interchangeable.
Metric
What it measures
Best used for
Marketing ROI
Return after marketing cost
Profitability and budget decisions
Margin-Based ROI
Return after margin and marketing cost
Profit-focused decisions
ROAS
Revenue per advertising dollar
Paid-media efficiency
Marketing CAC
Marketing cost per new customer
Acquisition economics
Break-Even Incremental Revenue
Revenue needed to cover marketing cost
Scenario planning
A campaign can have strong ROAS and still have weak marketing ROI when gross margin is low or non-media marketing costs are high.
Cost completeness
What costs should you include?
Include costs directly relevant to the campaign and measurement model. Consistency matters more than making the result look stronger.
- Paid advertising
- Agency or freelancer fees
- Creative production
- Landing-page design and development
- Email, CRM, analytics or automation tools
- Discounts or campaign promotions
- Events, sponsorships or webinars
- Internal marketing labor when included
- Other campaign-specific marketing expenses
Baseline methodology
How to choose baseline revenue
Baseline revenue represents what you estimate would have happened without the campaign.
Depending on the campaign, the estimate might come from a historical comparison, holdout group, pre-campaign period or another measurement method.
Use the most defensible baseline available. If the baseline is unreliable, treat incremental ROI as directional rather than precise.
Important distinction
Why ROI and ROAS can disagree
ROAS compares ad-attributed revenue with ad spend. Marketing ROI can also include non-media costs, gross margin, baseline revenue and incremental revenue.
The difference is not automatically an error. The metrics answer different questions.
Terminology
What is ROMI?
ROMI means Return on Marketing Investment. In practice, it is often used as another name for marketing ROI.
The methodology matters more than the acronym. Define the return, relevant costs, margin, baseline and measurement period before comparing results.
Keep these variables explicit
- ReturnDefined
- Marketing costComplete
- Gross marginConsistent
- BaselineDefensible
- Measurement periodMatched
Optimization
How to improve marketing ROI
Reduce Wasted Spend
Remove audiences, keywords, placements or campaigns that consistently fail to produce qualified outcomes.
Improve Conversion Rate
Make the path from campaign to landing page to conversion clearer and reduce unnecessary friction.
Improve Contribution Margin
Strong revenue can still produce weak ROI when little margin remains after product or service costs.
Improve Attribution
Avoid combining incompatible numbers from ad platforms, analytics tools and CRM reports.
Compare Incremental Results
Where practical, estimate what would have happened without the campaign rather than assigning every observed sale to marketing.
Separate purchasing decision
Planning for a sales or support team?
Marketing ROI and equipment purchasing are separate decisions. If growth involves expanding a phone-based sales, support or call-center team, evaluate communication equipment separately based on device requirements, team size and purchasing needs.
Frequently asked questions
Marketing ROI calculator FAQ
How do you calculate marketing ROI?
Subtract total marketing cost from the return generated by marketing, divide by marketing cost and multiply by 100. For profit-focused decisions, apply gross margin to incremental revenue before subtracting marketing cost.
Should marketing ROI use revenue or profit?
Use profit or gross-margin-adjusted revenue when the goal is profitability. Revenue-based ROI is simpler but can make a campaign appear stronger than its underlying economics.
What is the difference between ROI and ROAS?
ROAS divides ad-attributed revenue by ad spend. Marketing ROI measures return after relevant marketing costs and can also incorporate margin and incremental revenue.
What is baseline revenue?
Baseline revenue is the revenue you estimate would have occurred without the campaign. Subtracting it from observed revenue helps estimate incremental revenue.
Can marketing ROI be negative?
Yes. A negative margin-based ROI means the estimated incremental gross profit did not cover marketing cost during the selected measurement period.
Why can ROAS be high while ROI is low?
ROAS ignores many costs and usually ignores gross margin. A campaign can produce strong revenue relative to ad spend while producing limited profit after relevant costs.
What is Marketing CAC?
Marketing CAC is total marketing cost divided by new customers acquired. Fully loaded CAC may also include relevant sales acquisition costs.
What is break-even incremental revenue?
Break-even incremental revenue is the additional revenue required to cover marketing cost after applying gross margin.
Wantek resources
Related tools and business resources
Use this calculator for marketing decisions and Wantek product resources separately when a project involves business communication equipment.
