Analytics

CR — Conversion Rate

The percentage of visitors or users who complete a desired action.

Definition

Conversion Rate (CR or CVR) measures the proportion of users who complete a desired action out of those who had the opportunity to do so. In advertising, this typically means the percentage of ad clicks that result in a purchase, sign-up, or other defined goal. Conversion rate is one of the most impactful metrics in performance marketing — improving conversion rate directly reduces your CPA and improves ROAS without changing your ad spend. Conversion rate optimization (CRO) is the discipline dedicated to improving this metric through landing page testing, UX improvements, and offer refinement.

Formula

Conversion Rate = (Conversions ÷ Total Visitors) × 100%

Divide the number of completed actions by total visitors (or clicks) and multiply by 100.

Example

1,000 users click your ad and land on your product page. 30 purchase. Conversion Rate = (30 ÷ 1,000) × 100% = 3%. Three in every hundred visitors converted.

Key Points

E-commerce average conversion rate is typically 1–4%
Conversion rate is influenced by landing page quality, offer, pricing, and trust signals
A 1% improvement in CR can halve your effective CPA
Segment conversion rates by traffic source to identify top-performing channels