Every shopper who reaches checkout and leaves is the most expensive loss in your funnel. They were one click from paying. Enter three numbers and see what that drop-off costs you every month and what closing it is worth.
lost revenue · completion rate · lift from closing the gap
The lift assumes you recover the target points of completion at your current order value. Real gains depend on which checkout friction you remove and how far you move the rate.
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Think about who reaches checkout. They found your store, browsed, picked a product, added it, and clicked to pay. Every dollar you spent on ads and every minute of their attention already went in. They are the closest thing to guaranteed revenue you have.
So when a third of them vanish at the payment screen, that loss is not the same as a bounce on the homepage. It is the whole funnel, wasted at the finish line. A single point of completion lift here is worth more than a point of lift anywhere earlier, because these are the buyers who already said yes to everything else.
This calculator puts a monthly dollar figure on that drop-off so you can see why the checkout deserves your attention first.
How many reached checkout, how many completed, and your average order value. All in your analytics.
Reached minus completed, valued at your order size, gives the revenue your checkout loses each month.
Lost revenue, your completion rate, and the monthly gain from recovering your target points.
It is the share of shoppers who reach your checkout and then finish the order. If a thousand reach checkout and six hundred and thirty complete, your completion rate is sixty-three percent, and the rest walked away at the last step where they were closest to buying.
Because these shoppers already chose the product, added it, and started paying. They are the highest-intent visitors you have. Losing them at the payment step wastes the entire funnel above it, so a point of lift here is worth more than a point almost anywhere else.
Surprise shipping or tax, too many form fields, a forced account, a limited set of payment options, and slow load are the usual culprits. Each one adds friction at the exact moment the shopper is ready to hand over money, and any of them can break the sale.
Yes. Run it as many times as you want, no account. Drop your email only if you want the breakdown sent to you.
Knowing the checkout loses money is the start. Knowing which friction to remove first is the fix. Run the free Profit Audit and get the ranked list of what is breaking your checkout and your pages, in dollars, with the order to fix them.
Run My Free Profit Audit → Takes about 2 minutes. You get the exact fixes, not a sales pitch.