Calculate gross burn, net burn, runway, burn multiple, and cash-out timing, then turn the result into a sharper founder update, board deck, or financing narrative without hiding the math.
Frame cash position, hiring plans, and financing urgency with one clean operating narrative.
Separate gross burn, net burn, and runway so investors can see the real liquidity position fast.
Pressure-test whether current growth and spend assumptions still support the plan to breakeven or next raise.
Active example: Quarterly investor update for a seed-stage workflow SaaS company balancing hiring against enterprise pipeline conversion.
Runway is below the typical seed target range of 15-20 months. This usually requires a tighter spend plan, a clearer revenue bridge, or an earlier fundraising timeline.
Current gross burn is $305.0K per month and net burn is $185.0K. Dynamic runway is 10.2 months with cash running out around Jun 2027 if current revenue and expense growth assumptions hold.
Model the cash reality the board will ask about first: liquidity, revenue scale, spend base, and how both evolve each month.
Keep the math explicit so the runway discussion stays analytical rather than theatrical.
Gross burn = $305,000
Net burn = $185,000
Static runway = 9.7 months
Revenue growth = 6.0%
Expense growth = 1.5%
Dynamic runway = 10.2 months
Cash in 6 months = $737,025
Cash in 12 months = -$21,698
Cash in 18 months = -$21,698
Benchmark runway target = 15-20 months
Suggested raise start = 3.2 months from now
Typical lead time = 7 months before zero cash
Lead with the runway implication, not just the cash balance. Investors and boards care about how quickly management runs out of options under the current plan.
Runway bar with target range overlay
Separate gross burn from net burn so the audience sees whether the issue is cost base, revenue scale, or both.
Gross vs net burn bridge
A board update gets stronger when the burn rate is linked to growth quality rather than defended as an isolated spending number.
Burn multiple callout with benchmark note
This example uses the default seed SaaS preset so the investor-update math is visible in plain English.
Gross burn = $280,000 operating expenses + $25,000 committed new spend = $305,000.
Net burn = $305,000 - $120,000 monthly revenue = $185,000.
Static runway = $1,800,000 / $185,000 = 9.7 months.
With 6.0% monthly revenue growth and 1.5% monthly expense growth, the dynamic runway is 10.2 months.
Translate cash balance and net burn into a crisp runway headline, then explain the drivers and management response in plain operating language.
Use the runway view to anchor whether the company can wait for better financing conditions or needs to open the process sooner.
Pressure-test the breakeven path and highlight where new hiring or slower growth would compress liquidity faster than the plan assumes.
Keep the cash story practical: runway, zero-cash date, operational triggers, and the actions needed before covenant or liquidity pressure builds.
Rule of 40 Calculator
Pair runway with the SaaS growth-versus-margin score many boards and investors ask about next.
LTV:CAC Ratio Calculator
Pair liquidity with SaaS unit economics before the board asks how efficiently growth converts.
Investor Update Deck Generator
Turn the cash narrative into a slide outline before you build the full deck.
Investor Update Presentation Guide
See how runway, burn, wins, risks, and asks fit into one recurring update story.
Quarterly Business Review Template
Useful when the cash story needs to sit inside a broader operating review.
Pitch Deck Grader
Check whether the financing narrative is also credible in fundraising materials.
Use these as boardroom sanity checks, not as a substitute for company-specific planning.
| Stage | Target runway | Notes |
|---|---|---|
| Pre-seed | 18-24 months | Teams usually optimize for learning speed while protecting enough runway to complete the next proof point. |
| Seed | 15-20 months | Seed investors usually expect a clear line from burn to pipeline, product progress, and fundraise readiness. |
| Series A | 12-18 months | Once the company is scaling, boards usually want tighter evidence that spend is converting into durable ARR. |
| Growth / Series B+ | 12-15 months | Growth-stage teams are expected to show more control over sales efficiency, margin shape, and downside planning. |
| PE-backed / Portfolio company | 9-12 months | Portfolio reviews care less about startup theater and more about covenant room, liquidity, and execution triggers. |
Current benchmark note
Target burn multiple: 1.5x to 2.0x.
Typical fundraise lead time: begin roughly 7 months before the projected zero-cash point.
Reporting static runway from last month’s spreadsheet while signed hiring commitments have already changed the burn base.
Showing runway without explaining whether the denominator is gross burn, net burn, or a blended cash flow number.
Using optimistic revenue growth in the board deck without pressure-testing slower collections or delayed closes.
Waiting to start fundraising until the runway headline already looks uncomfortable to investors.
Gross burn is total monthly cash operating spend. Net burn is gross burn minus monthly revenue. Gross burn shows cost discipline, while net burn determines how quickly cash is actually falling.
Static runway assumes today’s burn never changes. Dynamic runway projects revenue and expense growth month by month, which is usually more useful for board updates and fundraising planning.
Show the cash balance, net burn, runway, what is driving the burn, and what actions management is taking. Investors care about the cause of burn and the plan, not just the headline month count.
It depends on stage and growth quality, but lower is generally better. A burn multiple near or below 1.0x is efficient, while sustained numbers well above 2.0x usually need explanation.
No. It is a fast decision tool for management reviews, board decks, and investor updates. Use it to frame the story, then reconcile it to the full operating model and cash forecast.
Use the calculator first, then generate an investor or board slide that explains runway, burn drivers, financing timing, and the management actions that matter most.