Cart Abandonment Cost Calculator

Around 70% across e-commerce — roughly seven of ten carts never become orders. Mobile runs worse (75–80%) than desktop. If your abandonment is meaningfully above 75%, look for a specific culprit: surprise shipping costs, forced account creation, or a checkout that fails on mobile.

A realistic slice of it. Abandonment email sequences typically recover 5–15% of abandoned carts, and removing checkout friction (guest checkout, upfront shipping costs, fewer form fields) lifts the completion rate itself. Treat the number this calculator shows as the ceiling of opportunity, not a promise — a portion of abandoners were never going to buy.

The consistently top-cited reasons: unexpected extra costs at checkout (shipping, taxes, fees), being forced to create an account, a long or confusing checkout, and lack of trust in the site with payment details. Notice these are all fixable by the merchant — which is why abandonment responds so well to checkout work.

Any session where a shopper added at least one item to the cart. Most analytics platforms report this as an add-to-cart session count. Do not use checkout-started instead — that measures a later, smaller funnel step and will understate the leak. Consistency matters more than the exact definition; use the same event month over month.