Email List Growth & Churn Forecast.

1. Enter the values you know in the form.
2. Run the tool and review the result alongside the notes below.

Each month is calculated as prior list size plus additions minus the churn percentage of the prior list.

Important considerations

• Real lists have acquisition quality, cohort and deliverability differences.
• This is a simple forecast, not a deliverability model.

Worked example

Use a small, realistic example first so you can see how the output changes when one input changes.