Startup Cash Runway Calculator
See how many months of cash your startup has left. Enter your cash on hand and either a net monthly burn or your monthly expenses and revenue, and the calculator shows your runway in months.
How to use the runway calculator
- Enter the cash you currently have in the bank.
- Enter your net monthly burn, or your monthly expenses and revenue.
- Read how many months of runway remain before cash runs out.
Examples
500,000 cash, 50,000 net burn
cash 500000, net burn 50000
10 months of runway
Expenses 80,000, revenue 30,000
cash 500000, expenses 80000, revenue 30000
Net burn 50,000, 10 months of runway
Frequently asked questions
What is cash runway?
Cash runway is the number of months a company can keep operating before it runs out of money, assuming its current net burn rate stays the same. It is a core survival metric for startups.
How is runway calculated?
Runway in months equals cash on hand divided by net monthly burn. Net burn is the cash you spend each month minus the cash revenue you bring in, so runway = cash / (expenses - revenue).
What is the difference between gross burn and net burn?
Gross burn is your total monthly cash spend. Net burn subtracts monthly revenue from that spend. Runway is based on net burn because revenue offsets some of what you are spending.
What does infinite runway mean?
If revenue is equal to or greater than expenses, net burn is zero or negative and you are not losing cash. The calculator treats this as infinite runway because, at that rate, you never run out.
Does this account for changing burn or one-off costs?
No. It assumes a steady net burn. Large one-off costs, hiring plans or revenue growth will change the picture, so revisit your runway whenever your monthly numbers move.
Related tools
Burn Rate Calculator
Calculate your startup's monthly burn rate from a change in cash. See net and gross burn per month and the runway left from your ending cash balance.
Startup Runway Calculator
Calculate your startup runway in months. Enter cash on hand, monthly burn and revenue to see net burn and how long your money lasts.
SaaS Metrics Dashboard
Calculate the core SaaS KPIs at once. Enter customers, ARPU, churn and CAC to get MRR, ARR, LTV, LTV to CAC, CAC payback, NRR and quick ratio.
A/B Test Sample Size Calculator
Work out how many visitors per variant your A/B test needs. Set baseline rate, the lift you want to detect, power and significance to size the test.
A/B Test Significance Calculator
Check if your A/B test result is statistically significant. Enter visitors and conversions for each variant to get the p-value, z-score and verdict.
Break-even Calculator
Find your break-even point fast. Enter fixed costs, price and variable cost per unit to see the units and revenue needed to cover your costs.