BrandMarketing ROI & CAC Calculator
Enter your monthly media spend, retainer, traffic and margins to see real ROAS, customer acquisition cost, break-even conversion rate and net profit. This is the same maths our growth team uses in performance marketing reviews for clients across India, Dubai, the UK and the US.
Your numbers
Use one month of data. Everything stays in your browser — nothing is uploaded.
Your results
Updates live as you type.
Enter your spend and traffic to see the verdict.
How the marketing ROI calculation works
Revenue is visitors multiplied by conversion rate, average order value and lifetime orders per customer. Gross profit applies your margin. Net profit subtracts your total marketing investment — media spend plus agency or in-house cost, because a retainer is real money and ROAS that ignores it flatters every channel.
- ROAS — revenue divided by total marketing investment.
- CAC — total marketing investment divided by new customers.
- Break-even conversion rate — the conversion rate your current traffic needs before marketing pays for itself.
- CAC payback — how many orders a customer must place before you recover the cost of acquiring them.
Frequently asked questions
How do you calculate marketing ROI?
Marketing ROI is gross profit from marketing-driven revenue minus total marketing investment, divided by that investment. Include media spend and retainer or salary cost.
What is a good ROAS for a small business?
With 40–60% gross margins, a blended ROAS around 3x usually clears media, retainer and overhead. High-margin services or strong repeat purchase brands can work profitably lower.
Why is my CAC rising?
Usually creative fatigue, broad targeting, weak landing pages or auction pressure from new competitors. A positioning and funnel review typically moves CAC faster than another round of bid tweaks.
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