Formula
Break-Even Customers = Fixed Costs ÷ (ARPU × Gross Margin)
FAQ
Does churn change break-even?
In steady state, churn means you must also re-acquire lost customers. The true requirement is slightly higher — model it with the runway or forecast calculators.
Is break-even the same as runway zero?
They meet at the same moment, but runway tells you when, break-even tells you what customer count gets you there.