Cart Abandonment Rate Calculator
See how many shoppers leave without buying.
Results update as you type.
How it works
Cart abandonment rate is the percentage of shoppers who add items to their cart but leave before completing the purchase, and it is one of the clearest signals of friction in your checkout. You calculate it by dividing completed purchases by carts created, subtracting that fraction from one, and multiplying by 100; the complementary figure is your checkout completion rate. Abandonment matters enormously because these are not cold browsers, they are shoppers who showed real intent by building a cart, then walked away at the final hurdle. Industry studies routinely put average abandonment near seventy percent, which means the majority of would-be sales evaporate at checkout across the whole industry. Every point you recover is high-quality revenue from people who already wanted to buy. The causes are well understood: unexpected shipping and fees revealed late, forced account creation, a long or confusing checkout, security worries, limited payment options and simple distraction. Because the intent is already there, fixing these frictions often produces faster returns than any amount of new traffic. Store owners use this calculator to quantify the leak, to justify checkout improvements, and to measure the effect of changes such as guest checkout, clearer shipping costs, progress indicators, digital wallets and abandoned-cart email reminders. Track abandonment over time, watch it fall as you smooth the path to purchase, and treat the completion rate as a direct measure of how well your checkout converts hard-won intent into orders.
abandonment rate = (1 − completed ÷ created) × 100
The formula divides completed purchases by carts created to get the completion rate, the share of carts that turned into orders. Subtracting that fraction from one leaves the share that did not convert, and multiplying by 100 expresses it as the abandonment percentage. Because completion and abandonment are complements, they always sum to one hundred percent, so improving one directly reduces the other. Carts and purchases must be counted over the same period for the ratio to hold.
Source:Baymard Institute checkout usability research
We review all our tools from time to time to ensure accuracy.
Worked example
How to use this calculator
- 1
Enter your values
Enter carts created and completed purchases.
- 2
Adjust the options
Fine-tune any options to match your situation.
- 3
Read your result
Cart abandonment rate updates instantly as you type — no button to press.
Frequently asked questions
What is the average cart abandonment rate?
Large-scale studies consistently place the average shopping-cart abandonment rate around seventy percent, meaning roughly seven in ten carts never become orders. The figure varies by industry, device and price point, with mobile and high-consideration purchases tending to abandon more. Because the average is so high, most stores have substantial room to recover revenue by smoothing checkout, and even a few percentage points of improvement can translate into a meaningful lift in completed sales.
Why do customers abandon their carts?
The most common reasons are extra costs appearing late, such as shipping, taxes and fees, followed by being forced to create an account, a checkout that is too long or complicated, and concerns about payment security. Others simply comparison-shop, get distracted, or use the cart as a wish list. Because unexpected cost is the leading driver, showing shipping and fees early and offering guest checkout usually reclaims the largest share of otherwise lost sales.
How can I reduce cart abandonment?
Show total costs including shipping as early as possible, offer guest checkout, and shorten the process to as few steps as you can. Provide multiple payment methods including digital wallets, display trust and security badges, and use a progress indicator so shoppers know how close they are to finishing. Follow up with abandoned-cart emails to recover intent that slipped away, and continually test each change so you can see which frictions were costing you the most.
What is the difference between cart and checkout abandonment?
Cart abandonment covers shoppers who add items but never begin or finish checkout, while checkout abandonment is narrower, counting only those who start the checkout flow and then quit partway. Checkout abandonment isolates friction inside the payment funnel specifically, whereas cart abandonment captures the wider drop-off after adding to cart. Measuring both helps you tell whether shoppers lose interest before checkout or stall during it, so you can target the right fix.
Do abandoned cart emails actually work?
Yes, abandoned-cart emails are one of the highest-performing tactics in ecommerce because they reach people who already demonstrated buying intent. A timely reminder, sometimes paired with the saved cart contents or a modest incentive, recovers a meaningful share of otherwise lost orders. Sending a short sequence rather than a single message tends to perform better, and combining email with on-site improvements addresses both the shoppers you can reach and the frictions that drove them away in the first place.