Net burn, runway in months, cash-out date and the latest date to start raising, plus five scenarios.
The form starts with editable example values. Calculate runway as-is, or replace them with your own cash and burn first.
Most runway calculators stop at a number. This one turns runway into the latest responsible date to start fundraising.
Investors care about how fast you consume cash after revenue. The calculator shows both.
You need enough runway to close and still have buffer. Raising late weakens terms.
Flat burn with growing revenue is a story. Rising burn with flat revenue is a warning.
Simple, transparent, and the same numbers an investor will run in their head.
# core components net_burn = monthly_expenses - monthly_revenue gross_burn = monthly_expenses runway = (cash - cash_floor) / net_burn cash_out = today + runway months raise_by = cash_out - fundraising_buffer net_burn <= 0 -> default alive
The default fundraising buffer is about five months, roughly the time from first outreach to wired funds for a founder-led round.
Everything recomputes locally in the browser, including the scenario table.
By the time pressure feels obvious, you have often lost the leverage of raising early.
You cannot spend to zero. Payroll, legal, and a soft landing all need a buffer.
The revenue miss scenario is not pessimism. It is prudence.
Many founders aim to keep 12+ months. Below that, you should prepare to raise; below 6 months you are often raising from a weaker position.
Yes. With zero revenue, net burn equals gross burn. If revenue exceeds expenses, the calculator marks you default alive.
Yes. The calculation runs in the browser. This public tool does not send your numbers to RoundOS.