Growth rate calculator
Measure period growth and compound growth. Period growth is ((end − start) ÷ start) × 100% and monthly CAGR is (((end ÷ start)^(1 ÷ months)) − 1) × 100%.
Inputs
Enter start and end values and the number of months.
Summary
Period growth and monthly compound growth.
Period growth
30.0%
Monthly CAGR
4.5%
Months
6
Growth rate basics
Period growth shows the percentage change between two values. CAGR smooths growth across multiple months to capture the average monthly rate.
How to use the calculator
- Enter starting and ending values (e.g., MRR).
- Specify the number of months between them.
- Use period growth for reporting and CAGR for trend comparisons.
Interpreting results
- Period growth: 30.0%.
- Monthly CAGR: 4.5%. Annualize by multiplying by 12 for a rough comparison.
Pitfalls
- Short periods can exaggerate CAGR—compare similar durations.
- Outliers and seasonality can skew period growth—use smoothed values.