Break-even calculator

How many paying customers you need to cover your costs, and when you could get there.

Your numbers

$

Tools, rent, your pay, everything that doesn't grow with customers

$

Per month

$

Hosting, AI, support

%

Per month

%
Customers needed
80
Monthly revenue needed
$2,320
Margin per customer
$25.13
after fees and serving costs
You get there
Month 4

Monthly profit by number of customers

−$2,000−$1,000$0$1,000$2,0000285684112140
How it’s calculated
  • margin per customer = price × (1 − payment fees) − cost to serve one
  • customers needed = fixed costs ÷ margin per customer, rounded up
  • customers each month = customers last month × (1 − cancel rate) + new customers
  • growth levels off at new customers ÷ cancel rate

See the whole picture

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Questions

What counts as a fixed cost?

Anything you pay whether you have one customer or a hundred: tools, rent, salaries, and your own pay if you take one.

Why does churn matter so much?

Customers who cancel have to be replaced before you can grow. With high churn, growth levels off at new customers ÷ churn, which may be below break-even.