Startup Runway Calculator (Advanced)
Estimate how long your business can keep operating based on starting cash, revenue, expenses, and one-off costs.
Gross monthly burn
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Net monthly burn
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Estimated runway
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Cash after one-off costs
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Summary
Key insights
How startup runway works
Runway tells founders how many months of operating time remain before cash runs out. It is a core planning metric because it affects hiring, pricing, fundraising, and survival decisions.
What this calculator covers
- Gross monthly burn before revenue offsets costs
- Net burn after revenue is subtracted from expenses
- Cash remaining after one-off costs
- Estimated operating runway in months
Why founders use this
- To know how urgent revenue growth or fundraising is
- To spot whether the business can survive long enough to validate demand
- To see how expense changes affect survival time
- To make decisions with a clearer financial buffer
Common questions
Quick answers to common founder questions related to this tool.
What is a healthy startup runway?
Many founders aim for at least 6 to 12 months of runway, though the right number depends on risk, growth stage, and access to capital.
What is the difference between gross burn and net burn?
Gross burn is total monthly operating spend. Net burn subtracts monthly revenue, showing how quickly cash is actually declining.