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Conversion rate: the formula, what counts as good and how to increase it
Almost every metric in web and marketing comes back to a single number: what share of the people who visit a page do what you hoped they would. That number is easy to calculate and easy to misread. We start with the definition and the conversion rate formula, and end with what really counts: the revenue and qualified leads behind the percentage.
What is conversion rate?
Conversion rate is the share of visitors who complete a desired action, expressed as a percentage. An action can be a purchase, a form submission, a download or a booking. The term is often abbreviated to CR.
The conversion rate formula is simple:
- Conversion rate = (number of conversions ÷ number of visitors) × 100
If you have 100 visitors and 3 of them buy, the conversion rate is 3%. So far, nothing controversial. The hard part is not calculating the figure but knowing whether it means anything.
How to calculate conversion rate
You need two numbers: the number of conversions and the number of visitors over the same period. Divide the first by the second and multiply by 100. Two examples make it concrete.
Example 1: e-commerce. An online shop gets 3,500 visitors in a month and 120 of them complete a purchase. The calculation is:
- 120 ÷ 3,500 × 100 = 3.43%
Example 2: why the figure misleads. Compare two landing pages:
- Page A: 200 visitors, 10 conversions → 5%
- Page B: 20,000 visitors, 800 conversions → 4%
Page A has the higher conversion rate. But Page B delivers 80 times as many conversions. On top of that, A's 5% is based on only 200 visits – far too small a base to draw any conclusions from. If three more visitors converted, the figure would jump to 6.5%; if three fewer converted, it would fall to 3.5%. On small numbers, the percentage swings wildly. We come back to why this matters so much in the section on statistical significance.
Calculate your conversion rate
Enter the number of visitors and the number of conversions, and the tool calculates the rate for you – and shows how sensitive the figure is to your traffic volume.
Work out your conversion rate
Conversion rate = number of conversions divided by number of visits. The calculator works it out and puts it in relation to common benchmarks.
More free toolsWhat is a good conversion rate?
The honest answer: it depends. What counts as "good" depends on your industry, your traffic source, your price, what you count as a conversion, and even which device the visitor uses. A figure that is strong for a B2B service with long sales cycles is weak for a cheap impulse buy. Ask what is good in your context; do not look for a magic number.
With that caveat, industry data still offers reference points. According to Ruler Analytics, the overall average was 5.13% across 13 industries in 2026, but the range is wide: from around 1.9% for travel to nearly 7.9% for legal services and car dealerships. The traffic source matters too: paid and direct traffic typically convert better than social traffic, because the intent behind the visit differs.
For pure B2B, where a conversion is usually a lead rather than a purchase, First Page Sage puts the figure anywhere from 1.1% for B2B SaaS to 7.4% for legal services. For e-commerce, Shopify states that a conversion rate above 3.2% puts a shop in the top 20 per cent. And by device, desktop generally converts better than mobile: around 3.4% versus 2.0%, according to Contentsquare.
The figures differ this much because the reports measure different things: all channels versus a single channel, purchases versus leads, the whole website versus a single landing page. Use them as benchmarks to beat, not as an answer key. The most useful comparison is your own conversion rate over time.
Here is how to read your own figures by segment:
- E-commerce: compare against Shopify's threshold of 3.2% for the top 20%, but factor in price and range: more expensive products convert at lower rates.
- B2B and lead generation: a conversion is usually a lead, not a purchase, so measure both the share of leads and how many actually become deals.
- SaaS: separate a free trial sign-up from a paid subscription. They are different conversions and should be measured separately.
Macro conversions vs micro conversions
Not all conversions are worth the same. It pays to distinguish between two levels.
- A macro conversion is the main goal: the purchase, the signed quote, the completed contact form. This is where the revenue sits.
- A micro conversion is a step along the way: a newsletter subscription, a product added to the basket, a downloaded guide, a clicked CTA.
Micro conversions are valuable because they show where in the funnel people get stuck. But do not confuse them with the deal. A page can have excellent micro conversions and dismal macro conversions: many people add products to the basket, but few complete the purchase. Then you know exactly where to look for improvements.
Why a high conversion rate can be a warning sign
A high conversion rate is not always good news. There are two common traps.
The first is too little traffic. With 200 visits, a handful of purchases can produce an impressive percentage that means nothing: the base is too small to be stable, just like Page A in the example above. The second is traffic that is too narrow. If almost everyone who finds the page is already warm (existing customers, people who clicked on your brand name), the conversion rate will be high – but all it reflects is that you are selling to people who had already made up their minds. There is no growth behind the figure.
The point: do not chase the percentage for its own sake. A conversion rate that falls because you open the page up to new, colder traffic may well mean more deals and more actual revenue. What counts is revenue and qualified leads, not the decimal point.
Statistical significance: when can you trust the figure?
A conversion rate only means something if it is based on enough visits. A small company that sees 3 out of 60 visitors convert and draws conclusions about what "works" is in practice measuring chance. Before you act on a change or run an A/B test, the difference needs to be statistically significant – that is, unlikely to be down to chance.
If your traffic is low, A/B testing is often the wrong tool: it takes months to reach significance, if you get there at all. Qualitative methods give faster answers:
- User testing: let real, independent people try the page and tell you where they get stuck.
- Heatmaps and session recordings: see where people click, linger and leave the page.
- Form analytics: find exactly which field makes people give up.
These methods do not need large volumes, and they are more likely to point straight to why something is not working – which a test never tells you.
Conversion rate vs conversion analysis: what is the difference?
Short answer: conversion rate is a metric; conversion analysis is the work of understanding it.
The conversion rate tells you what is happening: what share of visitors converts. A conversion analysis answers why it looks the way it does: where in the flow people drop off, which audiences and channels behave differently, which obstacles hold things back. The figure is the result; the analysis is the process that makes the figure actionable. Staring at the conversion rate without analysing the underlying causes is like looking at the thermometer without asking why the patient has a fever.
How to increase your conversion rate
The work of increasing the conversion rate is usually called CRO (Conversion Rate Optimisation), and it rarely comes down to changing the text on a single button. It means removing friction and building trust throughout the flow. In practice:
- Clarify the offer. Within a few seconds, visitors should understand what you offer and why it is worth having.
- Remove friction in forms and checkout. Fewer fields, fewer steps, fewer doubts.
- Strengthen trust. Reviews, case studies, clear prices and terms.
- Speed up the page. Slow loading costs conversions, especially on mobile.
- Test against data, not opinions, when you have enough traffic for it; otherwise use qualitative methods (see above).
And keep your eye on the right number. What matters is not whether the percentage rises but whether revenue and qualified leads do. If you want to look at the financial side (what outside help costs and when it pays off), we cover it in What does a CRO agency cost? Price and ROI.
This is how we approach conversion rate optimisation: we analyse where visitors drop off, rebuild what is needed and measure the effect.
Would you like a second pair of eyes on where your page actually loses visitors? Get in touch and we will look at the flow together.
Common questions about conversion rate
How do you calculate conversion rate?
Divide the number of conversions by the number of visitors and multiply by 100. If 120 out of 3,500 visitors buy, the conversion rate is 120 ÷ 3,500 × 100 = 3.43%. A conversion can be a purchase, a form submission, a booking or a download. Choose the action that matches your goal and measure it over the same period as the traffic.
What is a good conversion rate?
It depends on industry, channel, price and device; there is no universal figure. According to Ruler Analytics, the average was 5.13% across 13 industries in 2026, with a range from around 1.9% to nearly 7.9% depending on the industry. E-commerce is often lower than B2B services. Treat such figures as a benchmark rather than an answer key, and compare mainly against your own history.
What is the difference between conversion rate and conversion analysis?
Conversion rate is a metric: the share of visitors who convert. Conversion analysis is the work of understanding why the figure looks the way it does: where in the flow visitors drop off, which channels and audiences behave differently, and which obstacles hold things back. The rate is the result; the analysis makes the result actionable.
Can a high conversion rate be a bad sign?
Yes. A high figure can be down to too little traffic, where a few individual purchases produce an impressive but unreliable percentage. It can also be down to traffic that is too narrow. If almost all your visitors are already warm, of course they will convert, but the figure hides the fact that the page is not reaching a new audience. Always look at the number of conversions and the revenue, not just the percentage.
How many visitors do you need before you can trust the conversion rate?
There is no fixed threshold, but on small numbers the percentage swings sharply and means little. With only a couple of hundred visits, a single extra conversion can move the figure by several percentage points. Before you draw conclusions or run an A/B test, the difference should be statistically significant. If your traffic is low, user testing, heatmaps and form analytics give faster and clearer answers.
How do you increase your conversion rate?
Remove friction and build trust throughout the flow: clarify the offer, shorten forms and checkout, show reviews and clear prices, and speed up the page. If you have enough traffic, test changes against data instead of guessing. If you do not, use qualitative methods. And measure success in revenue and qualified leads, not just in percentages.
