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Runway. No spin.
Cash, burn, growth — months until zero. The number that drives every other decision.
Inputs (monthly)
Results
Net burn
$50,000
per month
Runway
24 mo
at current pace
Breakeven
10 mo
at 8% MoM growth
Cash zero
month 24
no further raise
Benchmark
Safe runway
18+ months between rounds. Build, don't fundraise — yet.
How it works.
Track gross AND net burn separately. Net runway looks great until a customer churns; gross burn shows your real cost base.
FAQ.
What is startup runway?+
Months of cash you have left at current net burn. Runway = cash on hand ÷ (monthly burn − monthly revenue). Below 6 months, raise or cut. Below 3, take drastic action.
What's a safe runway target?+
18-24 months between rounds is the post-2022 norm. 12 months is the absolute floor — fundraising itself takes 4-6 months and investors don't fund desperation.
Gross vs net burn?+
Gross burn = all operating expenses. Net burn = gross minus revenue. Track both — net is your real runway, gross shows your cost base when revenue is volatile.
How do I extend runway fast?+
Cuts compound — every $1 saved is $12-24 of runway. Largest levers: headcount, marketing spend, contractor budgets. Smallest: SaaS tools (usually <5% of burn).
When is breakeven realistic for SaaS?+
Year 4-7 for bootstrapped SaaS, year 5-9 for VC-backed. Earlier breakeven usually means too-slow growth; never breakeven means terminal capital dependence.