Startup Runway Calculator
Estimate how many months your startup can operate before its cash runs out based on current cash, monthly revenue and operating expenses.
Enter your startup figures
Use your current cash balance and average monthly revenue and operating expenses.
Runway Estimate
Based on your entered monthly cash inflow and operating costs.
How the Startup Runway Calculator Works
Startup runway is commonly estimated by comparing available cash with the business's monthly net cash burn. Revenue is subtracted from operating expenses to determine the monthly burn.
Runway (months) = Current Cash Balance ÷ Monthly Burn
For example, if a startup has ₹100,000 in cash and a monthly burn of ₹15,000, the estimated runway is 6.7 months.
If monthly revenue is equal to or greater than operating expenses, the entered figures do not produce a positive burn, so this calculator displays an indefinite runway rather than dividing by zero or a negative number.
This is a planning estimate based on the figures entered. Actual cash runway can change with revenue fluctuations, one-time costs, taxes, financing, capital expenditure, working-capital timing and other cash movements.
How to use this calculator
What to enter
Enter or select the following as requested: Currency — Display Only; Current Cash Balance (); Average Monthly Revenue (); Average Monthly Operating Expenses (). Follow the units, valid ranges, examples, and options displayed beside each field.
What the result means
The business result is derived from the financial, staffing, sales, customer, or project assumptions entered. Check the period used, which costs and revenues are included, and whether one-time items, taxes, churn, or uncertainty are represented.
When to use it
Use this to compare business scenarios and support preliminary planning. Treat projections as assumptions-based estimates, then validate them against actual results and current market or company data.