Startup Burn Calculator
Gross burn = total spend; net burn = spend minus revenue. Runway = cash ÷ net burn.
Result
Gross burn$80,000
Net burn$50,000
Runway10 months
Default-alive?Plan the raise
Startup Burn Calculator — FAQs
How much runway is enough?
18+ months at raise time. Raising with under 6 months kills your leverage — start the process at 9–12.
Default alive vs default dead?
Graham's test: at current growth, do you hit profitability before the money runs out? Net burn trending down = alive; flat burn + static revenue = dead.
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