Marketing ROI Calculator
Enter your current traffic, conversion rate, average order value, and projected improvement to see exactly how much additional revenue a conversion rate lift is worth — before you invest in optimization.
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Formula
Additional Revenue = Traffic × (CR × Lift%) × AOV
Multiply your monthly traffic by the absolute conversion rate improvement (current rate × relative lift) to get additional conversions per month. Multiply by average order value to get additional revenue. The annual impact multiplies this by 12.
How to use the Marketing ROI Calculator
- 1
Enter your monthly traffic
Total monthly visitors to your site or landing page.
- 2
Enter your current conversion rate
Value should be in %.
- 3
Enter your average order value
Value should be in $.
- 4
Enter your projected conversion lift
Expected relative improvement (e.g. 20% means going from 3% to 3.6%).
- 5
Read your results instantly
Results update in real time as you type.
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Why conversion rate optimization often beats paid acquisition
Paid traffic is a tap you rent. Conversion rate improvement is an asset you own. A 20% lift in conversion rate multiplies the value of every future traffic source — paid, organic, referral, and direct — permanently.
Consider: spending $10,000/month on Google Ads to grow traffic 20% vs. spending $10,000 once on CRO to improve conversion 20%. The paid traffic stops the moment you stop paying. The CRO improvement compounds with every visitor forever.
What conversion rate improvements are realistic?
The size of attainable improvements depends heavily on where you start. Sites with 1–2% conversion rates have lots of headroom — 50–100% relative improvements are common with significant UX work. Sites already converting at 8–10% are near their practical ceiling for the product-market fit they have.
A/B testing typically yields 10–30% relative improvements on high-impact elements (hero copy, primary CTA, checkout flow). Most winning tests move the needle by 5–15%. A 20% lift is a reasonable target for a well-researched, properly-tested change.
Tips & Insights
Focus on the checkout funnel first
Improvements to checkout pages typically have 3–5× higher impact than top-of-funnel changes because users are already committed. Fix leaks near the bottom before optimizing the top.
AOV optimization is the other lever
Doubling conversion rate and doubling AOV both double revenue. Upsells, bundles, and volume discounts often have faster ROI than pure CRO work.
Worked Examples
E-commerce store
$11,250 additional monthly revenue ($135,000/year) from a 25% conversion lift — going from 375 to 469 monthly sales.
SaaS free-to-paid
$2,940 additional monthly revenue ($35,280/year). Even modest SaaS conversion improvements compound significantly over time.
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Frequently Asked Questions
What's a good conversion rate to aim for?
It depends entirely on your industry and traffic quality. E-commerce averages 1–3%, SaaS trials 5–10%, lead gen landing pages 10–25%. Rather than chasing a benchmark, focus on beating your own baseline consistently.
How do I calculate ROI on a CRO project?
Take the annual revenue impact from this calculator and subtract your investment in tools, agency fees, and developer time. ROI = (Annual Impact − Investment) ÷ Investment × 100. Most CRO projects pay back within 3–6 months.
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