Calculate how many months your current cash reserves last at your burn rate. Enter your cash balance and get runway months and burn rate instantly — no spreadsheet required.
Step 1. Enter your cash balance in the first field.
Step 2. Fill in monthly burn, monthly revenue to complete the required inputs.
Step 3. The calculator instantly shows Runway Months, Burn Rate, Cash Left based on the formula: Runway Months = Cash Balance / (Monthly Burn - Monthly Revenue).
With the default inputs loaded in the form, the calculator produces a starting result you can use as a baseline. Change one field at a time to compare a new scenario.
The Cash Runway Calculator works by applying the formula: Runway Months = Cash Balance / (Monthly Burn - Monthly Revenue). Each input plays a distinct role — small changes to cash balance can shift runway months significantly, which is why running multiple scenarios before making a decision is valuable.
To use this calculator effectively, gather accurate values for Cash Balance, Monthly Burn, Monthly Revenue. Estimates are fine for exploration, but the more precise your inputs, the more actionable the output. The calculator instantly returns Runway Months, Burn Rate, Cash Left, giving you a clear picture of where you stand.
This type of business calculation is commonly used in real planning scenarios — not just academic exercises. Whether you are comparing options, setting a target, or checking your current position, the Cash Runway Calculator gives you a reliable number to work from. Always revisit the calculation if any input changes significantly.
It calculates runway months, burn rate, cash left using the formula Runway Months = Cash Balance / (Monthly Burn - Monthly Revenue). The inputs required are cash balance, monthly burn, monthly revenue.
You need: Cash Balance; Monthly Burn; Monthly Revenue. Use accurate figures from your actual situation for the most useful result.
Results are mathematically precise given the inputs you provide. The formula used is: Runway Months = Cash Balance / (Monthly Burn - Monthly Revenue). Accuracy depends on how precise your input values are — estimates work for planning, but use exact figures for final decisions.
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Disclaimer: Results from this calculator are for informational and planning purposes only and do not constitute financial, legal, or professional advice. Always verify important calculations with a qualified professional.
