Calculating your cart abandonment rate is straightforward once you know the Cart Abandonment Rate formula and what each input means. This guide explains the method in plain language, walks through a manual calculation, and gives worked examples you can follow — then you can do it instantly with the Cart Abandonment Rate Calculator.
What is Cart Abandonment Rate?
The Cart Abandonment Rate calculation tells you your cart abandonment rate from a few simple inputs. The figure you are solving for here is the cart abandonment rate, expressed in percent.
The Cart Abandonment Rate formula
The core formula is:
Cart abandonment rate = (1 - Completed purchases ÷ Carts created) × 100Here is what each input means:
- Carts created — a number. Example: 1,000.
- Completed purchases — a number. Example: 300.
How to calculate it step by step
- Write down the carts created (for example, 1,000).
- Write down the completed purchases (for example, 300).
- Apply the formula above to get your cart abandonment rate.
- Double-check the result with the Cart Abandonment Rate Calculator.
Worked examples
Example 1
| Input / Output | Value |
|---|---|
| Carts created | 1,000 |
| Completed purchases | 300 |
| Cart abandonment rate | 70.00% |
With carts created of 1,000 and completed purchases of 300, the cart abandonment rate works out to 70.00%.
Example 2
With carts created of 2,000 and completed purchases of 300, the cart abandonment rate works out to 85.00%.
| Result | Value |
|---|---|
| Cart abandonment rate | 85.00% |
Example 3
With carts created of 500 and completed purchases of 300, the cart abandonment rate works out to 40.00%.
| Result | Value |
|---|---|
| Cart abandonment rate | 40.00% |
Tips for an accurate result
- Keep your units consistent — mixing, say, months with years or grams with kilograms is the most common source of error.
- Round only at the very end. Rounding inputs early can shift the final answer noticeably.
- Re-run the numbers whenever an input changes, rather than estimating from an old result.
Prefer not to do the maths by hand? — the Cart Abandonment Rate Calculator does it instantly, for free, with the formula and a worked example built in.
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