Email List Growth Calculator
Measure your monthly list growth rate and project future list size. Understand the health of your subscriber acquisition and churn.
Enter Your Monthly List Data
Enter figures for a single month to calculate growth and projections.
Subscribers at the start of the period
New opt-ins during the period
Hard bounces + spam complaints removed
Your Results
Net Growth
—
New − Lost
Growth Rate
—
Net Growth ÷ Starting Size
End List Size
—
Start + Net Growth
Churn Rate
—
(Unsubs + Bounces) ÷ Start
Projected List Size (at this growth rate)
3 Months
—
6 Months
—
12 Months
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List Growth Rate Benchmarks
Excellent> 5% / monthStrong acquisition outpacing churn
Good2–5% / monthHealthy, sustainable growth
Average0–2% / monthTypical for established lists
Needs Attention< 0% / monthChurn exceeds new subscribers
How List Growth Rate is Calculated
Net Growth = New Subscribers − Unsubscribes − Bounces Removed
Growth Rate = (Net Growth ÷ Starting List Size) × 100
Churn Rate = ((Unsubscribes + Bounces) ÷ Starting List Size) × 100
Projected Size uses compound growth: Start × (1 + Growth Rate)^months