What Is Cart Abandonment Rate? Formula, Causes and How to Reduce It
Cart abandonment rate is the percentage of shopping sessions in which a visitor adds at least one item to their cart but leaves without completing the purchase. It is calculated as 1 minus (completed purchases ÷ carts created), multiplied by 100.
If 1,000 carts were created in a month and 300 resulted in a completed order, the abandonment rate is (1 − 300/1,000) × 100 = 70%. The exact number depends on how your analytics tool defines a cart, whether it counts sessions or users, and how it treats people who return later and buy. Compare your own rate over time using one consistent definition rather than comparing it to a figure quoted elsewhere, since public averages vary by method and source. [NEEDS VERIFICATION: if you want to cite an industry average, source it from a named study with a date.]
Shoppers leave for reasons that are mostly visible in the checkout flow: unexpected costs such as shipping or tax appearing late, a forced account creation, a slow or confusing checkout, limited payment options, concerns about trust or return policy, or simply browsing with no intention to buy yet. Not every abandoned cart is a lost sale; some people use a cart as a wishlist or price comparison. Separating cart abandonment (left before checkout) from checkout abandonment (left during checkout) helps you find where the leak actually is.
Common responses include showing total costs earlier, offering guest checkout, adding payment methods, clarifying delivery and returns, and sending recovery messages such as abandoned-cart emails or SMS, which only work on shoppers whose contact details you captured. Retargeting ads are another route (see what-is-retargeting); dynamic product ads can show shoppers the exact items they left behind (see what-is-dynamic-product-ads). Each has a cost and an effect on margin, particularly if you rely on discounts to recover carts.
Why it matters
Infinall AI does not run your checkout, send abandoned-cart emails or track your cart data. It produces research, strategy, ad copy and creative from a product URL, and drafts land in an Approval Queue for you to edit and approve before export. Where it helps with abandonment is on the messaging side: you can draft retargeting ad angles and creative variations that address a common objection, such as shipping cost or returns, and review them before use. Whether those ads run, and whether they lower your abandonment rate, depends on your ad platform setup and your checkout itself. Infinall does not buy media, manage live spend or guarantee a result, and it is not a substitute for fixing a checkout problem.
Related terms
Frequently asked questions
How do you calculate cart abandonment rate?
Divide completed purchases by the number of carts created, subtract that from 1, and multiply by 100. For example, 300 orders from 1,000 carts gives an abandonment rate of 70%. Keep the definition of a cart and the time period the same when comparing over time.
Is a high cart abandonment rate always bad?
Not necessarily. Some shoppers use the cart to save items, compare prices or check shipping costs with no plan to buy yet. A high rate is a prompt to look at your checkout flow, costs shown and trust signals, but it is most useful as a trend you track against yourself rather than a number to match to someone else's.