The Conversion Rate Formula
Conversion rate = conversions / visitors × 100
A "conversion" is whatever action the page exists for: a demo request, a pricing-page visit, a content download, a sign-up. Use one conversion per calculation. Mixing a newsletter sign-up and a demo request into one rate produces a number nobody can act on.
Worked Example
Illustrative numbers: a demo page gets 4,000 visitors a month and 96 demo requests, a 2.4% conversion rate. The team believes a shorter form and an industry-specific headline could reach 3%. The target tab shows that 3% on the same traffic is 120 requests, 24 more a month. If one in five demo requests becomes a customer, that is roughly five extra customers a month, which is a far easier case to make than "a 25% relative lift".
Before you promise the 3%, check that a test could detect the change at your traffic. Going from 2.4% to 3% is a 25% relative lift; the A/B test calculator tells you how many weeks that takes.
What Most Teams Get Wrong
- Site-wide averages. A blended rate across blog, careers and product pages tells you almost nothing. Calculate per page template and per traffic source.
- Ignoring who converts. A rate can rise while pipeline falls if the extra conversions come from companies you cannot sell to. Track the rate for your ICP segment separately; our CRO audit guide shows how to split it.
- Comparing periods with different traffic. A paid campaign that brings colder traffic lowers the rate even when the page improved. Segment before comparing.
If the rate is low for visitors from your best-fit accounts, the page is probably speaking to everyone at once. Visitor segmentation shows the rate per industry or company size so you can fix the segments that matter first, and our guide to B2B landing page optimization covers what to change.
Frequently Asked Questions
How do you calculate conversion rate?
Divide the number of conversions by the number of visitors (or sessions) in the same period and multiply by 100. 96 demo requests from 4,000 visitors is a 2.4% conversion rate.
Should I use users or sessions as the denominator?
Either works if you stay consistent. Sessions give a lower rate because one person can visit several times. For B2B pages where buyers return several times before converting, user-based rates are easier to explain to sales; session-based rates are what many GA4 reports show.
What is a good conversion rate for a B2B website?
There is no single good number, because it depends on the conversion (newsletter sign-up vs demo request), the traffic mix and the price of what you sell. Compare a page against its own history and against similar pages on your site, and segment by traffic source before drawing conclusions.
Why does my conversion rate look different in GA4 and my CRM?
They count different things. GA4 counts key events per session or user and misses visitors who decline analytics cookies; the CRM counts records, merges duplicates and includes leads from other channels. Pick one source per KPI and note which one you used.
How much traffic do I need to trust a conversion rate?
Enough conversions that one or two more would not change the story. With 10 conversions, one extra conversion moves the rate by 10%. Look at a period with at least a few dozen conversions, or use the A/B test calculator to check whether a change between two versions is real.