Conversion Rate Calculator
Calculate a conversion rate — the percentage of visitors who take a desired action.
Turning traffic into action
Conversion rate is the percentage of people who take a desired action — buy, sign up, click — out of the total who had the chance. This works it out from conversions and visitors, the core metric of whether a page, campaign or funnel is actually working, not just attracting traffic.
Enter the conversions and total visitors to see the rate.
Why small improvements are worth so much
Conversion rate matters because it is often the cheapest thing to improve: doubling your conversion rate doubles results from the same traffic, without spending a penny more on attracting visitors, which is why optimising conversion is frequently better leverage than chasing more traffic. Small changes to a page, an offer or a form can move it meaningfully. Two cautions: judge changes on enough data to be meaningful rather than reacting to a handful of visits, and remember a high conversion rate on the wrong action is hollow — converting visitors into something worthless is not progress. Measured and improved deliberately, conversion rate is one of the highest-leverage numbers in any online business.
Frequently asked questions
Why is improving conversion rate so valuable?
Because it multiplies results from the same traffic — doubling the rate doubles outcomes without spending more on attracting visitors.
What should I watch out for?
Judging changes on enough data to be meaningful, and making sure you are converting toward something genuinely valuable, not just any action.
Is anything uploaded?
No. The calculation happens in your browser.