Trusted by 500+ founders

Stop Guessing Your Runway.
Know It.

Spreadsheets give you false precision. RunwayModeler uses Bayesian simulation to show you realistic runway ranges—so you can make better decisions under uncertainty.

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The Problem with Spreadsheets

False Precision

"You have exactly 16.2 months of runway"

Reality: It could be 12 or 20 months

Static Assumptions

Assumes everything stays constant

Reality: Hiring delays, revenue misses, surprises

No Risk Quantification

Can't answer "what's my risk?"

Reality: You need to know probability of failure

Built for Founders Who Think in Probabilities

RunwayModeler uses the same Bayesian methods as insurance actuaries—applied to your startup's cash flow.

Natural Language Input

Just describe your situation in plain English. No complex forms or spreadsheet formulas.

Monte Carlo Simulation

1,000 scenarios simulated instantly. See the full range of possible outcomes.

Risk Quantification

Know exactly: "25% chance of running out before your Series A closes."

Sensitivity Analysis

Discover what matters most: revenue growth? Hiring timing? Focus on what moves the needle.

What-If Scenarios

"What if I delay hiring by 3 months?" Get instant answers to strategic questions.

Actionable Recommendations

Not just data—specific advice on when to raise, hire, or cut costs.

How It Works

Describe Your Situation

"I have $500K, burning $40K/mo, planning to hire 2 engineers in Q2, raising $2M in 6-8 months."

AI Extracts the Data

Our AI understands your scenario and structures it for analysis—no forms to fill out.

Bayesian Simulation Runs

1,000 Monte Carlo simulations account for uncertainty in hiring, revenue, expenses, and timing.

Get Actionable Insights

See your runway distribution, risk analysis, and specific recommendations—all explained in plain English.

Simple, Transparent Pricing

One plan. Everything included. No surprises.

Pro

$ 79 /month

Billed monthly • Cancel anytime

  • Unlimited runway simulations
  • Monte Carlo analysis (1,000 iterations)
  • Natural language input
  • Scenario comparisons
  • Sensitivity analysis
  • Export reports (PDF)
  • Priority email support
Start 14-Day Free Trial

30-day money-back guarantee

Founders Love RunwayModeler

"Finally, a tool that tells me I have 12-18 months instead of exactly 14.7. The uncertainty ranges changed how I think about fundraising timing."

Sarah Chen CEO, TechStart (Series A)

"The 'what if I delay hiring' feature saved us. We pushed back 2 hires and extended runway by 4 months—enough to hit our metrics for fundraising."

Marcus Johnson Founder, DataFlow

"Our board loves seeing the probability distributions. It shows we understand our risks and aren't just guessing."

Emily Rodriguez CFO, CloudScale

Ready to Know Your Real Runway?

Join 500+ founders making better decisions with probabilistic forecasting.

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