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Cart abandonment rate calculator

Compute your shopping cart abandonment rate from carts created and completed.

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Enter Carts created, Purchases completed and the Cart abandonment rate calculator works out Abandonment rate straight away. For instance, with Carts created = 1,000 and Purchases completed = 300 it returns Abandonment rate = 70%.

How to use it

  1. Enter your values: Carts created, Purchases completed.
  2. Read the result instantly: Abandonment rate.

Frequently asked questions

What does the Cart abandonment rate calculator actually compute?

It takes Carts created and Purchases completed and derives Abandonment rate from them. The calculation is live as you type, so the result updates on every change.

What information do I need to provide?

2 values: Carts created and Purchases completed. Nothing else is required — no account, no file upload.

Can you show a worked example?

With Carts created = 1,000 and Purchases completed = 300, the calculator returns Abandonment rate = 70%. Those figures come from running this exact tool, so you can reproduce them by entering the same values.

When would I actually use this?

Before and after a campaign: turning a target into a daily budget, comparing two channels on the same basis, and deciding whether the return justifies continuing.

What is the most common mistake?

Judging ROAS without subtracting the cost of goods. A 3× return on ad spend is a loss whenever the margin is under a third — the ratio says nothing about profit on its own.

What is the difference between the Cart abandonment rate calculator and the Lead-to-customer rate calculator?

This one returns Abandonment rate; the Lead-to-customer rate calculator returns Lead-to-customer rate. That is the whole difference — open the one whose figure you need.

Is there a tool for the next step?

Product return rate calculator is the closest one after this: Compute the return rate of your products from items returned and sold.

What else is worth having open alongside it?

Bounce rate calculator and Click-to-open rate (CTOR) calculator — they come up in the same task often enough to be worth a second tab.

Where do the figures come from, and how current are they?

The formulas are the industry-standard ones every ad platform uses; the inputs come from your own reporting. Platforms differ in attribution window and in what counts as a conversion, so figures rarely reconcile exactly between them.

Further reading

All guides →
ExplainerCart Abandonment: The Metric and the Money Behind ItAbandonment rate is one minus completed over created — and the figure quoted everywhere is an average across wildly different shops. The useful work is turning a percentage point of checkout completion into money, then discounting it for returns.ExplainerReturn Rate: The Number That Decides Whether Your Ecommerce WorksA returned order is not a cancelled sale, it is a sale that cost you money. Here is the return rate at which returns eat the entire contribution of the orders that stayed sold, for three product profiles and five margin levels — plus what bracketing does to your order count.How-toHow to Calculate NPS: The Formula, a Worked Score, and What It HidesPercentage of promoters minus percentage of detractors. Passives sit in the denominator and nowhere else, the result runs from −100 to +100, and it is not a percentage despite looking like one.ExplainerEmail Open Rate Is Broken. Measure Click-to-Open InsteadApple Mail Privacy Protection pre-fetches tracking pixels, so a share of your opens were never opened by a person. Open rate now moves with your audience's mail client. Here is what survives, worked on a single send.GuideEngagement Rate Formulas by Platform: Why the Same Post Scores 2% and 4.8%Engagement rate is not one metric. Divide by followers, by reach or by impressions and the same post returns three different numbers — and every platform defaults to a different denominator.ExplainerBounce Rate Is Not What Most People Think It IsA bounce was never a measure of dissatisfaction — it was a session that sent one hit. Google Analytics 4 replaced the definition entirely, and the new one is a configurable timer. Here is the same thousand sessions read five ways.