How many customers do you need?

The simple part: goal divided by price

The customers you need is your MRR goal divided by what one customer pays each month, rounded up:

customers needed = MRR goal / monthly price

At $29 a month, $10,000 MRR takes 10,000 / 29 = 344.8, so 345 customers. At $9 it takes 1,112; at $99 it takes 102. If you have several plans, use your average revenue per customer (ARPU), which the MRR calculator works out from your plans. A yearly plan counts at one twelfth of its price.

Price is the lever people underrate. Going from $9 to $29 cuts the customers you need for the same goal by about two thirds, which is often easier than finding three times as many people.

The part people miss: churn sets a ceiling

Customers leave every month. If you win 30 new customers a month and lose 5% of the ones you have, you stop growing when 5% of your customers equals 30, at 600 customers. That is your ceiling at this pace: 600 x $29 = $17,400 MRR. Below it you grow; at it, every new customer only replaces one who left.

ceiling = new customers a month / monthly churn x price

So a goal above the ceiling is not a matter of waiting longer. It needs more new customers a month, lower churn, or a higher price. The calculator shows "Not at this pace" when the goal sits above the ceiling (or more than ten years away), and the churn rate calculator helps you measure the churn to put in.

How the months are counted

Starting from the customers you have today, each month the calculator takes off your churn and adds your new customers, until you reach the number needed. With 40 customers today, 30 new a month and 5% churn, you pass 345 customers in month 16.

It treats customers as a smooth average and assumes your pace and churn hold steady, which they rarely do for a year. Use it to see which lever matters, not as a forecast. The ARR calculator projects revenue from a growth rate instead, if that is how you think about it.

When you get there, show it

A goal reached is a good post. The revenue card generator turns the number into an image for X or LinkedIn, and a makerhandle page shows it as verified revenue, read from Stripe, Paddle, Lemon Squeezy or RevenueCat with a read-only key, so people do not have to trust a screenshot. For finding the first customers in the first place, read how to get your first 100 users.