Cart Abandonment Rate Calculator
Calculate the share of initiated carts that did not become completed orders, using compatible counts from the same period.
How to use this calculator
- Enter initiated carts and the completed orders attributed to that same cohort.
- Check that all inputs use the same units, time period and population scope.
- Change one assumption at a time when comparing scenarios.
Formula used by cart abandonment rate calculator calculator
Abandonment rate = (initiated carts − completed orders) ÷ initiated carts × 100%.
- Abandonment rate = (initiated carts − completed orders) ÷ initiated carts × 100%.
- Different analytics platforms define carts and sessions differently. Use a consistent cohort and account for cross-device or delayed purchases when possible.
- The tool validates entered values and formats results for readability; it does not verify assumptions against external records.
Worked examples
Worked example
800 carts started and 240 converted.
(800 − 240) ÷ 800 × 100 = 70%.
The measured cart abandonment rate is 70%.
Understanding the result
Calculate the share of initiated carts that did not become completed orders, using compatible counts from the same period.
Different analytics platforms define carts and sessions differently. Use a consistent cohort and account for cross-device or delayed purchases when possible.
Important notes
Different analytics platforms define carts and sessions differently. Use a consistent cohort and account for cross-device or delayed purchases when possible.
Treat the result as an estimate based on the entered inputs. For regulated, engineering, employment, tax or business decisions, check applicable official rules, specifications and professional guidance.
Frequently asked questions
Is a high rate always a checkout problem?
Not necessarily; browsing, comparison shopping, shipping cost, payment issues and tracking definitions can affect it.
Can completed orders exceed carts started?
Not within one matching cohort definition; check attribution or event deduplication if that occurs.
How should I use the result?
Different analytics platforms define carts and sessions differently. Use a consistent cohort and account for cross-device or delayed purchases when possible.
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Learn the method behind the number or compare the terminology before using the calculator.
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This page provides a calculation tool plus explanatory information so you can understand what the result means and when the underlying method may not fit your situation.