Email list growth calculator

See how long it will take to reach your subscriber goal at your current pace, and what your reach will look like when you get there.

What this calculator does

This tool shows you how many months it will take to grow your email list from where it is today to a target size, based on how fast it is growing each month. It also estimates how many people will open your emails when you reach the target.

Why this number matters

It is easy to chase subscriber count for its own sake, but the truth is messier. A list of 500 engaged customers is worth more than 5,000 strangers who barely open anything.

Still, size does help once people are engaged. Doubling a healthy list roughly doubles the money it brings in. So growth matters, just not at the cost of quality.

What to do next

If your timeline feels too long, the fastest fixes are putting a sign-up form on every page, asking customers when they are at the counter or finishing a service, and giving people a real reason to join.

You can grow your list for free with Minutemailer, up to 1,000 emails per month, no credit card needed. Curious what that growth would be worth in money? See the email marketing ROI calculator.