Startup Runway Calculator
How many months of cash do you have?
Calculate runway from cash, burn rate and growth. See default-alive vs default-dead, and the date you need to raise.
8,745 calculations4.8 ratingUpdated June 2026
Startup Runway Calculator — June 2026
Calculate startup cash runway, default alive verdict, fundraising window and survival milestones with June 2026 benchmarks.
Your runway workbench
Tune cash, burn, revenue and growth — the cash-decay curve and Default Alive verdict update instantly.
Cash runway projection
36-month cash balance vs zero-cash horizon
Live runway
Cash on hand
Burn & revenue
Growth assumptions
With $500K cash and $35K/month net burn, your 14.3-month runway is adequate for a default-alive trajectory — cash zeroes December 2027.
Milestones & fundraising window
Stack startup milestones against your runway and visualize the optimal raise window.
🎯 Milestone Timeline
First 100 Users
11.285714285714286 months buffer
$10K MRR
8.285714285714286 months buffer
Product-Market Fit
5.2857142857142865 months buffer
Start Fundraising
2.2857142857142865 months buffer
Break-even
⚠️ 3.7142857142857135 months beyond runway
Runway Gap: 1 milestone(s) are beyond your current runway. Consider extending runway or accelerating timelines.
Fundraising Timeline
Today
Now
Ideal Start
Feb 2027
in 4.2857142857142865mo
Zero Cash
Dec 2027
in 14.285714285714286mo
Fundraising Checklist
- • Prepare pitch deck and financials
- • Build investor list (50-100 targets)
- • Start warm intros and coffee chats
- • Begin active fundraising meetings
Deep methodology
AI runway advisor, extension simulator and side-by-side scenario stress test.
Turn runway into a funded growth plan
Pre-fill your cash, burn and growth assumptions into the full validation engine.
Next step
Validate this runway model end-to-end
We'll carry your cash, burn and growth assumptions into the validation engine.
Runway Report
Formula, June 2026 benchmarks, expert tips, mistakes and real runway turnarounds — one read.
Static runway = cash ÷ current monthly burn. The growth projection, Default Alive check and breakeven month are a separate simulation that assumes your entered revenue growth rate, expense growth and starting revenue stay constant month to month — change any input and those results change.
The runway formula stack
Runway = Cash on Hand ÷ (Monthly Burn − Monthly Revenue)Step-by-Step Breakdown
Net burn
Monthly Burn − Monthly Revenue
$50K expenses − $15K revenue = $35K net burn.
Cash runway
Cash on Hand ÷ Net Burn
$500K ÷ $35K = 14.3 months of runway.
Default alive test
Months to Breakeven < Months to Zero Cash
If breakeven comes first, you survive without raising.
Fundraising window
Runway − 9 months
Open conversations when you cross this threshold.
Example Calculation
Runway targets by stage (June 2026)
Median runway targets by stage — refreshed for the 2026 efficiency climate.
| Industry | Low | Average | High | Key drivers |
|---|---|---|---|---|
|
Pre-Seed
|
9 mo | 12 mo | 18 mo | |
|
Seed
|
12 mo | 18 mo | 24 mo | |
|
Series A
|
18 mo | 24 mo | 30 mo | |
|
Series B+
|
18 mo | 24 mo | 36 mo | |
|
Bootstrapped SaaS
|
6 mo | 12 mo | ∞ | |
|
AI Vertical Tools
|
15 mo | 21 mo | 30 mo |
* Benchmarks reflect first 6–12 months to launch in USD. Figures vary by region, team size, and market conditions. Click any source to verify the underlying data.
Expert tips for extending runway in 2026
Target 18+ months before opening a round
Investors price desperation. Founders raising under 9 months take 20-40% valuation haircuts.
💡 Action: Refresh your runway weekly and trigger fundraising prep when you cross 12 months.
Cut the bottom 20% of expenses ruthlessly
Tool sprawl, paused experiments and underused agencies hide in every burn line.
💡 Action: Run a SaaS + vendor audit every quarter; cancel anything not tied to a 2026 OKR.
Push annual prepay for cash up front
A 15-20% discount for annual prepay can add 20-30% to runway overnight.
💡 Action: Offer 15% off annual to all healthy users at month 3, and 20% off to enterprise.
Track burn multiple, not just runway
VCs now grade you on net burn ÷ net new ARR. Below 1× is elite, above 3× is a red flag.
💡 Action: Report burn multiple in every board update alongside runway and gross retention.
Deploy AI to bend the burn curve
AI-assisted engineering, support and content typically extends runway 15-25% in 2026.
💡 Action: Replace one full FTE-equivalent of cost with AI workflows per quarter.
Common runway mistakes to avoid
Including pipeline as revenue
Unsigned pipeline isn't cash. Runway based on pipeline always overstates by 2-4 months.
✓ Instead: Use signed, billed, collectable revenue only — and apply a 10-15% bad-debt discount.
Ignoring expense growth
Salaries auto-increase, vendor contracts escalate, and AI API costs grow 30-50% YoY.
✓ Instead: Always model 3-5%/month expense growth even in steady state.
Starting fundraising with under 6 months
Sub-6-month runway forces bridge rounds at down terms — the most expensive capital available.
✓ Instead: Open investor conversations at 9-12 months runway. Have a signed term sheet by 6.
Cutting growth before bloat
Founders cut marketing first because it's visible — and accelerate Default Dead.
✓ Instead: Cut tools, contractors, and underperforming hires before slashing growth experiments.
Real-world runway turnarounds
See how 2026 founders extended runway and avoided down rounds.
Illustrative scenarios: composite examples built from typical figures, not verified results of named companies.
Fintech Startup
Challenge: Needed to extend runway during challenging fundraising climate.
Initial Runway
8 months
Burn Reduction
40%
Extended To
14 months
Bridge Raised
$500K
Outcome: Cut non-essential costs and secured bridge funding, ultimately raising Series A at better terms.
EdTech Platform
Challenge: Post-pandemic growth slowed, needed to optimize burn.
Monthly Burn
$85K → $55K
Runway Gained
+9 months
Team Size
Maintained
ARR Growth
+35%
Outcome: Renegotiated vendor contracts and automated processes, extending runway while maintaining growth.
AI Vertical SaaS (June 2026)
Challenge: Burn multiple ballooned to 3.2× after aggressive Q1 2026 hiring; runway collapsed to 7 months.
Burn Multiple
3.2× → 1.4×
Runway
7 → 19 mo
Annual Prepay
+38% of MRR
Outcome
Series A closed
Outcome: Pushed 20% annual-prepay discount, cut contractor spend, deployed AI for support — closed Series A from strength at 24-month forward runway.
Fintech Bridge (June 2026)
Challenge: Default Dead in 9 months with 2024 down-round looming. Needed to flip the trajectory without losing the team.
Default Status
Dead → Alive
Net Burn
$180K → $95K
Runway
9 → 22 mo
Valuation Saved
~$8M
Outcome: Renegotiated vendor contracts, raised prices 22% on enterprise tier, and converted 60% of monthly customers to annual — avoided the down round entirely.
* Case studies are based on industry averages and anonymized data from similar companies.
Funding Calculator
How much should you raise — and when?
Guide: What is runway?
Founder-grade guide with frameworks & examples.
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