Free CRO Calculators
Ten free calculators built for marketers and founders running conversion rate optimization programmes. No sign-up. No email gate. Just the numbers.
Conversion Rate Calculator
Calculate your CVR instantly and see how much additional revenue each percentage point improvement is worth.
A/B Test Significance Calculator
Enter control and variant results to get confidence level, z-score, p-value, and a clear pass/fail verdict on your test.
A/B Test Sample Size Calculator
Find out exactly how many visitors you need per variant before your test results can be trusted.
A/B Test Duration Calculator
Calculate how many days to run your test given your traffic level, baseline CVR, and target improvement.
Checkout Funnel Calculator
Enter visitors at each funnel step to visualise where you're losing the most customers and what fixing it is worth.
Cart Abandonment Calculator
See exactly how much revenue cart abandonment is costing you monthly and annually — and what recovery is worth.
Landing Page ROI Calculator
Calculate CPA, ROAS, and the revenue impact of improving your landing page CVR across 4 improvement scenarios.
Customer Lifetime Value Calculator
Calculate CLV, max profitable CAC, and revenue sensitivity at different retention rates.
Form Conversion Calculator
Find where your form is losing leads — and the revenue impact of improving start rate vs completion rate.
CRO ROI Calculator
Quantify the revenue impact of improving your conversion rate before committing to a CRO programme.
Need more than a calculator? A free CRO audit identifies every conversion blocker on your site — with a prioritized fix list and estimated revenue impact.
Get a Free CRO Audit