Cart Abandonment Rate Calculator Formula
Understand the math behind the cart abandonment rate calculator. Each variable explained with a worked example.
Formulas Used
Cart Abandonment Rate
abandonment_rate = carts_created > 0 ? ((carts_created - purchases_completed) / carts_created) * 100 : 0Cart Completion Rate
completion_rate = carts_created > 0 ? (purchases_completed / carts_created) * 100 : 0Abandoned Carts
abandoned_carts = carts_created - purchases_completedVariables
| Variable | Description | Default |
|---|---|---|
carts_created | Shopping Carts Created | 10000 |
purchases_completed | Purchases Completed | 3000 |
How It Works
How to Calculate Cart Abandonment Rate
Formula
Abandonment Rate = ((Carts Created - Purchases Completed) / Carts Created) x 100
Cart abandonment is e-commerce's biggest revenue leak. The global average abandonment rate hovers around 70%, meaning seven out of ten shoppers who add items to their cart never buy. Each abandoned cart represents intent that was not converted. Recovering even a small fraction of abandoned carts through retargeting emails and checkout optimization can dramatically boost revenue.
Worked Example
10,000 shopping carts were created and 3,000 purchases were completed.
- 01Abandoned Carts = 10,000 - 3,000 = 7,000
- 02Abandonment Rate = (7,000 / 10,000) x 100 = 70%
- 03Completion Rate = (3,000 / 10,000) x 100 = 30%
Frequently Asked Questions
What is a normal cart abandonment rate?
The industry average is approximately 70%. Mobile has higher abandonment (roughly 85%) than desktop (roughly 70%). Higher-priced items see more abandonment than impulse purchases.
What are the top reasons for cart abandonment?
Research consistently cites: unexpected shipping costs (48%), required account creation (24%), complicated checkout process (18%), concerns about payment security (17%), and website errors (17%). Addressing these friction points reduces abandonment.
Ready to run the numbers?
Open Cart Abandonment Rate Calculator