How to calculate conversion rate
Inside this lesson
- The conversion rate formula
- Why the denominator matters
- How to interpret conversion rates fairly
Short answer
Conversion rate is conversions divided by sessions or users, multiplied by 100. For example, 300 purchases from 10,000 users is a 3% conversion rate. Always state your denominator, compare rates by segment, and use your own past performance as the main benchmark. A high rate on tiny volume is not automatically better.
The formula
Conversion rate = Conversions ÷ Sessions (or users) × 100
300 purchases from 10,000 users = 3% conversion rate.
Interpreting it well
- Always state the denominator (per session or per user).
- Compare by segment: device, channel, new vs. returning.
- Benchmarks vary widely by industry; your own past performance is the most useful benchmark.
- A higher rate on tiny volume is not automatically better.
Try it: shoe store numbers
An online shoe store has 20,000 product views, 2,400 add to cart, 1,000 checkouts started, and 450 purchases.
Quick quiz
Your action
Key terms
- Conversion rate
- Conversions divided by sessions or users, times 100.
- Denominator
- The number you divide by, like sessions or users.
- Benchmark
- A reference number for comparison.
- Volume
- The total count behind a rate.
Questions beginners ask
What is a good conversion rate?
It depends on industry, price, and traffic. Beat your own last period first.
Sessions or users?
Either works. Pick one and use it consistently.
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