Checkout completion rate in ecommerce measures the percentage of shoppers who start the checkout process and successfully finish their purchase.
It is the inverse metric of cart abandonment and one of the most important indicators of checkout usability and payment performance.
Back to the hub:
E-commerce Statistics.
Analyze checkout completion together with
cart abandonment rate,
payment failure rate,
and mobile revenue share.
Key benchmarks (cite-ready)
Checkout completion rate varies widely depending on checkout design, device, payment methods and customer intent.
- Average cart abandonment rate around 70% across ecommerce. Source
- Checkout UX improvements can significantly increase completion rates. Source
Checkout completion rate is strongly influenced by payment friction, shipping costs, account requirements and checkout usability.
Mobile vs desktop checkout completion
Device type has one of the strongest impacts on checkout completion.
| Device | Typical completion rate | Main challenges |
|---|---|---|
| Desktop | 40–50% | Better usability and easier form completion |
| Mobile | 20–30% | Smaller screens and payment friction |
| Tablet | 30–40% | Hybrid behavior between mobile and desktop |
Mobile checkout conversion is often lower due to complex forms and payment authentication steps.
Segments affecting checkout completion
Checkout completion benchmarks should be segmented for meaningful analysis.
| Segment | What to measure | Why it matters | Pair with |
|---|---|---|---|
| Device | Completion rate by device | Mobile checkout UX often lowers completion rates. | mobile revenue share |
| Payment method | Completion rate by payment type | Digital wallets and BNPL may improve checkout speed. | payment methods share |
| Shipping costs | Completion rate with free shipping | Unexpected shipping costs are a common reason for abandonment. | delivery methods share |
| Customer type | New vs returning customers | Returning customers often have stored payment details. | repeat purchase rate |
| Checkout UX | Guest checkout vs account creation | Forced account creation increases abandonment. | cart abandonment rate |
Definition and calculation
Checkout completion rate measures successful checkout conversions.
Checkout completion rate is calculated as:
Checkout completion rate = Completed purchases ÷ Checkout sessions × 100
- The denominator typically includes sessions that started the checkout process.
- Different analytics platforms may count checkout sessions differently.
- It is often analyzed alongside cart abandonment rate.
Reference pages:
Glossary •
Methodology
Sources
Primary sources used for ecommerce checkout benchmarks.
-
Baymard Institute — global cart abandonment benchmarks.
https://baymard.com/lists/cart-abandonment-rate -
Baymard Checkout UX Research — checkout usability and conversion impact.
https://baymard.com/research/checkout-usability -
Statista — ecommerce conversion statistics and checkout performance.
https://www.statista.com/
Cite this page
Copy and paste.
Best for Ecommerce. (2026).
Checkout completion rate in ecommerce.
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