Free tool
Startup Runway Calculator
Runway is the single most important number for a self-funded or early-stage SaaS: how many months until you're out of cash if nothing changes.
$50,000
$8,000
$1,500
0%
Optional — leave at 0% for a flat, conservative estimate.
Results
Net Monthly Burn
$6,500
Runway
8 mo
Estimated Zero-Cash Date
May 2027
Cash over time
Tight — cut burn or fundraise now, not later
Rule of thumb: raise or cut costs once runway drops below 6 months — fundraising itself takes 3–6 months.