CRO Confidence Calculator Tool Template

CRO Confidence Calculator Tool Template gives experimentation teams a sleek, dark-mode widget to embed on landing pages or internal tools.

What’s Included

• Conversion rate inputs for control (A) and variation (B)
• Automatic uplift, confidence, and significance calculation
• Dynamic styling for winners, losers, and inconclusive tests
• Reset function with sensible default values
• Tailwind CSS–powered, responsive dark UI

Key Features

• Real-time A/B test stats with instant recalculation
• Confidence level visualization using a two-tailed Z-test
• Clear verdict states: winner, drop, or more data needed
• Modern dark theme that’s easy to brand
• Lightweight, framework-free HTML/CSS/JS

Primary use case: embed this template into analytics dashboards, CRO landing pages, or internal experimentation tools to quickly evaluate and communicate A/B test outcomes.