Real-world use cases
The store buying more ads
An owner plans to raise ad spend to grow sales.
The calculator shows the add-to-cart step is the leak, so the same money spent on product-page CRO would return far more. Result: budget redirected to the real bottleneck.
The mystery drop
Traffic is up but orders are flat.
The funnel reveals checkout completion fell, pointing straight at a checkout issue. Result: a specific fix instead of guesswork.
Why the leak matters more than the traffic
Most store owners try to grow by pouring more traffic into the top of the funnel, which is the most expensive lever they have. Meanwhile, the same funnel quietly loses the majority of visitors at one particular step, and every one of those lost visitors was already paid for. Finding and fixing the biggest leak recovers revenue from traffic you already bought, which is almost always cheaper and faster than buying more. This calculator turns your funnel into a map of exactly where the money escapes.
The five stages of a Shopify funnel
A visit becomes an order through a series of gates: the session lands, the visitor reaches a product page, they add to cart, they reach checkout, and they complete the purchase. Each gate loses a share of people, and the losses multiply, so a small improvement at a weak stage flows through everything after it. Laying out the counts and step rates side by side shows you which gate is doing the most damage.
Your worst step is your best opportunity
The stage with the lowest step rate is your biggest leak, and it is also your biggest opportunity, because there is the most to recover there. A weak add-to-cart rate points to product pages that do not sell. A weak checkout-reach rate points to cart friction. A weak completion rate points to checkout problems like shipping shock or a clunky form. The calculator names the weakest step so you know where to aim.
From diagnosis to recovery
Once you know the leak, you can estimate the prize: closing even part of the gap to a healthier rate, on the traffic you already have, adds revenue every month without a dollar of new ad spend. Go deeper on the two most common leaks with our Product Page Conversion Audit and Checkout Leak Calculator.
You found the leak. Sealing it is conversion work
Knowing that your add-to-cart or checkout step is bleeding revenue is the valuable half. The other half is fixing it, and that is where most stores stall, because it takes conversion expertise: understanding why visitors hesitate, testing product-page changes, removing checkout friction, speeding up the store, and qualifying the traffic so the right people arrive in the first place. The leak is a symptom, and diagnosing it is not the same as curing it.
This is exactly what Digital Success does for Shopify brands. We turn a funnel diagnosis into recovered revenue through conversion optimization, page speed, and better-qualified traffic, so more of the visitors you already pay for become orders. Let us help you seal the leak.
Frequently asked questions
What is a good conversion rate for a Shopify store?
How do I find where my Shopify store loses sales?
Is it better to get more traffic or improve conversion?
What causes a low add-to-cart rate?
How much revenue can I recover by fixing my funnel?
Can Digital Success fix my funnel leaks?
This tool provides illustrative estimates for planning and does not guarantee results. The formulas are shown above so you can check the math yourself. Last reviewed September 2026 by the Digital Success ecommerce team.
Recover the revenue you already paid for
Fixing a funnel leak beats buying more traffic. Digital Success turns your funnel diagnosis into recovered revenue through CRO and speed, and pairs it with our Shopify SEO services to grow the traffic you're now converting better. Let us review your store free.
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