Email List Growth Calculator

Subtract your monthly unsubscribes from your new subscribers to get net monthly growth. Divide that by your current subscriber count and multiply by 100 to get your monthly growth rate as a percentage.

Net email list growth is how many subscribers your list actually gains each month after accounting for unsubscribes. New subscribers are acquisitions, not net growth — you have to subtract the people who leave to get the real number.

It depends entirely on your net monthly growth. Divide the gap between your current subscribers and 10,000 by your net monthly growth (new subscribers minus unsubscribes) to get an estimated number of months, assuming that rate stays roughly consistent.

There's no single universal rate. What's good depends on your traffic, lead magnets, website conversion rate, audience, acquisition channels, industry, offer, email frequency, and unsubscribe rate. A rate that's healthy for one list can be slow or fast for another.

Yes. Counting only new subscribers overstates your real growth. Unsubscribes reduce your list just as new signups increase it, so your net growth — and any timeline to a target — should always be based on new subscribers minus unsubscribes.

It's a simple projection, not a guarantee. It assumes your current new-subscriber and unsubscribe rates stay roughly consistent, but actual growth can change because of traffic, conversion rates, campaigns, seasonality, promotions, deliverability, and audience behavior.

Common methods include lead magnets, website signup forms, dedicated landing pages, content upgrades, promoting your newsletter across existing channels, social media, partnerships, and referral programs. Reducing unsubscribes by improving relevance and frequency also raises net growth.