How to Calculate Retention Curve
What is Retention Curve?
Retention Curve Calculator helps you measure the effectiveness and profitability of your marketing investments.
Formula
Retention at Day N = Active Day-N Users / Original Cohort Size × 100
Step-by-Step Guide
- 1Track daily/weekly cohort survival over time
- 2Calculate the result using the formula
- 3Compare against benchmarks to evaluate performance
Worked Examples
Input
1000 day-0 users, 300 remain at day-30
Result
Day-30 Retention = 30%
Common Mistakes to Avoid
- ✕Not accounting for all costs in the calculation
- ✕Ignoring attribution window when measuring results
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