·3 min
Conversion rate (CR) — conversion rate in marketing
conversion rateKPImarketingCRO
What is conversion rate?
Conversion rate (CR) is the percentage of users performing a desired action (conversion) relative to the total number of visitors. The most important KPI of every marketing channel — directly measures the effectiveness of a page, campaign, or funnel.
CR = (number of conversions / number of visitors) × 100%
Conversion types
- Microconversions — newsletter signup, email subscribe, account create, demo request, whitepaper download
- Macroconversions — purchase, qualified lead, signed contract
- Assist — touchpoints that don't end conversion but lead to it (measured by attribution modeling)
Typical CR values
| Industry | Avg CR | Top 10% |
|---|---|---|
| E-commerce | 2-3% | 5-8% |
| SaaS (trial → paid) | 15-20% | 25%+ |
| B2B lead gen | 2-4% | 6-10% |
| Landing page paid traffic | 5-10% | 20%+ |
| Newsletter signup | 1-3% | 5%+ |
Low CR ≠ problem — depends on product price and traffic intent.
What affects CR?
On-page
- Hero clarity — what do you offer in 5 seconds?
- Social proof — reviews, case study, customer logos
- CTA visibility — primary above the fold
- Form length — shorter = higher CR (usually)
- Trust signals — SSL, brand reviews, certs
- Page speed / Core Web Vitals — slow site = lower CR (-7% per 1s LCP)
Off-page
- Traffic quality — ad targeting, SEO intent match
- Channel mix — paid social vs organic search → different CR
- Personalization — content per persona gives +20-50%
CR optimization (CRO)
Conversion Rate Optimization (CRO) is a systematic process:
- Baseline measurement — what you have now in GA4
- Funnel analysis — where the drop-off is
- User research — heatmaps (Hotjar), session recordings, surveys
- Hypothesis — what and why to change
- A/B test — comparison control vs variant (Optimizely, VWO, Google Optimize)
- Statistical significance — minimum 1000 conversions per variant
- Implementation — promote winner, kill loser
Common mistakes
- Measuring CR alone without context — high CR with low traffic = few absolute conversions
- A/B test without signif — premature decisions based on 20 conversions
- Optimizing for vanity — sign-ups without tracking further conversion
- CRO instead of UX — sometimes the problem is a bug, not copy
Related terms
- Attribution modeling — channel context
- Bounce rate — complementary KPI
- Lead generation — entry to funnel
- Google Analytics — CR measurement
- Marketing funnel — CR per stage
- ROI — final result