Email List Growth Rate Calculator
Your list grew 3.07%, a net 860 subscribers this period.
What is Email list growth?
Email list growth rate is the net pace your list grows over a period, calculated as new subscribers minus unsubscribes, divided by total subscribers, times 100. Gain 1,200 and lose 340 from a 28,000 list and the rate is +3.07%.
The net framing is what makes it honest. Counting only signups makes a leaking list look healthy; subtracting unsubscribes shows the real direction. Here the net is 860 subscribers added.
Any positive rate means the list is growing; a negative one means churn is outrunning acquisition. The size of the number matters less than whether it stays above zero and holds up over time.
How to calculate Email list growth
Growth rate = (New − Unsubscribes) ÷ Total × 100
- Count new subscribers. Count everyone who joined the list over the period.
- Count unsubscribes. Count everyone who opted out over that same period, the churn side of the equation.
- Take the total list size. Use the total subscribers you are measuring against, for example 28,000.
- Net out and divide. New minus unsubscribes, divided by total, times 100. (1,200 − 340) ÷ 28,000 is +3.07%, a net 860 added.
Worked example
Over a period a 28,000-subscriber list adds 1,200 new signups and loses 340 to unsubscribes.
| New subscribers | 1,200 |
|---|---|
| Unsubscribes | 340 |
| Total subscribers | 28,000 |
| Result | +3.07% list growth · healthy |
The list grew by a net 860 subscribers, a +3.07% rate. It is comfortably positive, so the list is compounding rather than decaying, though the unsubscribes are worth watching as a share of new signups.
What is a good Email list growth?
There is no fixed target rate, so the meaningful benchmark is the sign of the number: above zero the list is growing, below zero it is shrinking. That is the line the calculator uses for its healthy verdict.
| Email list growth | Read |
|---|---|
| Growing Net rate above 0% | Acquisition is outpacing churn |
| Flat Net rate at 0% | Every signup is offset by an unsubscribe |
| Shrinking Net rate below 0% | Churn is outrunning new signups |
A positive rate is necessary, not sufficient. A high rate fed by low-quality or incentivised signups can churn straight back out, so read growth alongside engagement and the trend over several periods rather than a single figure.
How to improve Email list growth
- Add high-intent capture points (content upgrades, exit offers) so new signups arrive with a reason to stay.
- Cut the unsubscribe side by matching send frequency and content to what people signed up for.
- Re-engage dormant subscribers before they unsubscribe, and prune the truly dead to protect deliverability.
- Track net growth over several periods, since one good period can mask a list that is trending down.
Frequently asked questions
- What is email list growth rate and how do you calculate it?
- Email list growth rate is the net pace your list is growing over a period: new subscribers minus unsubscribes, divided by total subscribers, times 100. Add 1,200, lose 340 from a 28,000-strong list and the rate is +3.07%. Subtracting unsubscribes is the point: gross signups alone hide the leak.
- What is a good email list growth rate?
- The honest floor is simple: any net rate above zero means the list is growing rather than shrinking, which is what the calculator flags as healthy. Beyond that there is no fixed target, because the right pace depends on how aggressively you acquire and how clean your list is. A modest positive rate on an engaged list can beat a fast one fed by low-quality signups that churn straight back out.
- Is a 3% list growth rate good?
- A +3% net growth rate over a period is a solid, sustainable pace for an established list: it is clearly positive, so the list is compounding rather than decaying. What matters more than the number is the trend and the quality behind it. 3% built on engaged subscribers is healthier than a higher rate inflated by purchased or incentivised signups.
- Why subtract unsubscribes instead of just counting signups?
- Because gross signups flatter a list that is quietly leaking. A list adding 1,200 a period looks healthy until you see it also lost 340, leaving a net 860. Tracking net growth forces you to confront churn, and a high gross-add rate paired with high unsubscribes is a sign your acquisition or content is attracting the wrong people.
- What counts as churn for an email list?
- For this calculation, churn is unsubscribes: people who actively opt out. A fuller view of list health also accounts for hard bounces, spam complaints and dormant subscribers who never open, since a large inactive segment drags deliverability even though it is not unsubscribing. Net growth rate is the headline; pair it with engagement to see the real picture.