How long can my business survive with the cash I have? This cash runway calculator shows monthly cash burn or surplus, estimated runway in months, and whether your cash position looks stable or tight.
How to use this calculator
- Enter current cash balance.
- Enter monthly revenue and monthly expenses.
- Add expected revenue growth and an emergency cash target.
- Review monthly burn or surplus, runway, and risk level.
Formula
Monthly cash change = Monthly revenue − Monthly expenses. Runway estimates how many months until cash runs out when expenses exceed revenue, with optional revenue growth applied month by month.
Example
A shop with $36,000 cash, $22,000 monthly revenue, and $26,000 monthly expenses burns about $4,000 per month — roughly 9 months of runway before cash runs out.
Frequently asked questions
- What counts as monthly expenses?
- Include rent, payroll, inventory, utilities, loan payments, and other regular bills — not one-time purchases unless they repeat.
- Is this the same as profit?
- No. Cash runway focuses on money in and out of your bank account. Profit on paper can differ because of timing, loans, and inventory purchases.