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Ecommerce Conversion Rate Calculator
Enter your funnel and this ecommerce conversion rate calculator returns your orders, revenue and conversion rate, then shows how many visitors you lose at each step and what recovering a slice of them is worth. Every assumption stays visible and adjustable.
Your funnel
What that produces
Estimated recoverable revenue
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Everything the ecommerce conversion rate calculator above does is set out below: the formulas it runs, a worked example, and an honest account of what the numbers can and cannot tell you.
The formulas behind the ecommerce conversion rate calculator
Nothing here is hidden. If you would rather do the arithmetic yourself, these are the four calculations the tool runs.
Ecommerce conversion rate
Only useful when split. Pull it separately by device, by country and by traffic source, because a single blended figure averages away the segment that is actually failing.
Revenue
Revenue is a product, not a sum. Because the rates multiply, improving any one of them by 10% raises revenue by exactly 10%. What differs between steps is how much headroom each one has.
Revenue per visitor
The most useful number for deciding what you can afford to pay for traffic. If a visitor is worth €1.96 and you pay €1.20 to acquire one, the gap is your margin for everything else.
What a recovered visitor is worth
This is the part most calculators skip, and it is why their numbers are inflated. A visitor rescued at the product page still has to add to cart, reach checkout and pay. Only a visitor rescued at the final step is worth close to a whole order.
A worked example
Take a store with 200,000 sessions a year, an average order value of €120, and a funnel of 55% reaching a product page, 12% of those adding to cart, 55% starting checkout and 45% completing.
| Step | People lost | Each 1% recovered |
|---|---|---|
| Landing and discovery | 90,000 | €3,208 / year |
| Product page | 96,800 | €28,750 / year |
| Cart | 5,940 | €3,208 / year |
| Checkout | 3,993 | €4,792 / year |
That store converts at 1.63% and does €392,040 a year. The interesting result is the comparison between the first two rows: the landing step and the product page step lose a similar number of people, but the product page is worth nearly nine times more. Visitors lost at the landing step were mostly never going to buy; visitors who reached a product page and left had already shown intent.
This is the practical use of the tool. It does not just say you are losing money, it says which step deserves the next month of work.
What counts as a good ecommerce conversion rate
Less than most published benchmarks suggest, because those averages mix categories that have nothing in common. A store selling €15 consumables and one selling €4,000 machinery will never converge, and neither is doing anything wrong.
Two reference points that are genuinely useful:
- Baymard Institute puts the average cart abandonment rate at 70.22% across 50 studies, with extra costs revealed at checkout causing 40% of abandonments.
- Mobile carries most ecommerce traffic and converts below desktop nearly everywhere. A gap is normal; a dramatic gap is a finding.
The comparison that matters is against your own history, and against your own segments. If your mobile rate halved in March, that is worth more attention than any industry average.
Questions people ask
How do you calculate ecommerce conversion rate?
Divide orders by sessions for the same period, then multiply by 100. A store with 3,267 orders from 200,000 sessions converts at 1.63%. Always split the figure by device, country and traffic source, because the blended number hides almost everything worth knowing.
What is a good ecommerce conversion rate?
There is no universal answer, and published averages mix price points and categories that have nothing to do with each other. A store selling €15 consumables and one selling €4,000 machinery cannot be judged against the same benchmark. Compare your rate against your own history, and against your own segments, rather than against a headline number.
How do you calculate revenue per visitor?
Multiply your conversion rate by your average order value. A 1.63% conversion rate at €120 average order value produces €1.96 per visitor. It is the single most useful number for deciding what you can afford to pay for traffic.
Why is the biggest drop-off not always the most expensive?
Because a recovered visitor still has to complete every step after the one where you saved them. Somebody rescued at the product page must still add to cart, start checkout and pay, so they are worth a fraction of an order. Somebody rescued inside checkout is worth almost a full order. A step can lose ten times more people and still be worth less money.
What is a good cart abandonment rate?
Baymard Institute puts the average at 70.22% across 50 studies, with extra costs appearing at checkout responsible for 40% of abandonments. High-consideration purchases abandon more, and that is not always a fault. Treat the average as context, not a target.
How accurate is this ecommerce conversion rate calculator?
The arithmetic is exact; the recovery assumption is yours. It shows what a given percentage improvement would be worth at your own rates, with the assumption visible so you can change it. It cannot tell you whether a step is actually fixable, what is causing the drop, or what a fix would cost to build.
What this calculator is not
It is arithmetic, not a diagnosis. It tells you where the money sits. It cannot tell you whether that step is fixable, what is causing the drop, or what a fix would cost to build. A store with a 12% add-to-cart rate might be badly broken, or might sell equipment where 12% is excellent. The calculator cannot tell those apart. A person looking at your store can.
Before trusting any of the inputs, compare last month’s orders in your platform admin against your analytics. A few percent apart is normal. Fifteen percent apart means the numbers you just entered are fiction, and the ecommerce analytics audit covers how to fix that first.
If the calculator points at a step and you want to know why it leaks, the traffic without sales diagnostic maps symptoms to stages, and the guide to ecommerce CRO covers the research methods that find the cause.
Use this ecommerce conversion rate calculator on your own site
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The calculator finds the money. An audit finds the reason.
A fixed-price teardown goes through your store as a buyer and then as an operator, prices each finding with the assumption shown beside it, and ranks them by impact against implementation effort. From €400.
See what an audit coversOr book twenty minutes below if you would rather talk it through. No preparation needed.
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