Startup Cash Runway Calculator — Burn Rate Planner
Calculate how many months of cash runway your startup has. Enter your bank balance, monthly revenue, and monthly expenses to get net burn rate, runway in months, a status rating, and a month-by-month cash projection chart.
How to Use Startup Cash Runway Calculator — Burn Rate Planner
How to Use the Startup Cash Runway Calculator
Step 1: Enter Your Cash Balance
Enter your total current bank and investment balance — this is the total cash available to fund operations.
Step 2: Enter Monthly Expenses
Enter your total monthly operating expenses including payroll, infrastructure, SaaS tools, contractors, rent, and any other recurring costs. This is your gross burn rate.
Step 3: Enter Monthly Revenue (MRR)
Enter your current Monthly Recurring Revenue. The calculator subtracts this from expenses to get your net burn rate. If you have no revenue yet, leave it at zero.
Step 4: Set MRR Growth Rate (Optional)
Enter your expected monthly MRR growth rate as a percentage. This models improving burn over time as revenue grows. Leave at zero for a conservative flat-revenue forecast.
Step 5: Read the Results
- Net Burn / Month — cash consumed each month (expenses minus revenue)
- Gross Burn / Month — total expenses before revenue offset
- Cash Runway — months until cash reaches zero at current burn rate
- Cash Zero — projected month of depletion
Step 6: Review the Runway Chart
The month-by-month chart shows projected cash balance with color coding: blue = healthy, amber = under 6 months, red = under 3 months. Use this to visualize when you need to have a raise closed or burn reduced.
Runway Status Guide
- Critical (< 3 months): Emergency action required
- Danger (3–6 months): Begin fundraising immediately
- Caution (6–12 months): Start investor conversations now
- Healthy (12+ months): Strong position for milestone-driven raises
Frequently Asked Questions
Most Viewed Tools
Screen Size Converter — Diagonal Dimension Tool
Calculate screen width and height from diagonal size and aspect ratio. Convert between inches and centimeters for displays, TVs, and monitors with instant dimension calculations.
Use Tool →DPI Calculator — Print Resolution Tool
Calculate DPI (dots per inch), image dimensions, and print sizes. Convert between pixels and physical dimensions for printing and displays.
Use Tool →TOTP Code Generator — 2FA Testing Tool
Generate time-based one-time passwords from a TOTP secret key. Enter your base32 secret, choose a period and digit length, and get the current and next codes with a live countdown timer. Useful for testing and debugging 2FA integrations.
Use Tool →Password Entropy Calculator — Crack Time Estimator
Calculate the information-theoretic bit entropy of any password or API key. Detects character set pools automatically, shows the total number of possible combinations, and estimates crack time across five attack scenarios from rate-limited web logins to GPU cracking clusters.
Use Tool →JSONL Formatter — Line-by-Line Validator
Format, validate, and inspect JSON Lines (JSONL) and NDJSON files. Validates each line individually, reports parse errors by line number, outputs compact JSONL or a pretty-print preview, and lets you download the cleaned file.
Use Tool →JSON to Zod — Schema Generator
Generate Zod validation schema code from a JSON sample object. Infers z.string(), z.number(), z.boolean(), z.array(), z.object(), and z.null() types automatically. Handles nested objects, arrays of objects with optional field detection, and outputs copy-ready TypeScript with import and z.infer type alias.
Use Tool →Seconds to Time Converter — HH:MM:SS Formatter
Convert seconds to HH:MM:SS time format instantly with precise calculations and easy-to-read formatting.
Use Tool →TLS Cipher Suite Checker — Strength Analyzer
Check TLS protocol version compatibility and cipher suite strength ratings against current best practices. Supports IANA and OpenSSL cipher names — rates each suite as Strong, Weak, or Deprecated and explains why.
Use Tool →Related SaaS Integration & Backend Tools
Webhook Tester — Live Payload Inspector
FeaturedGenerate a unique webhook URL and receive live HTTP requests. Inspect request headers, method, body, and timestamp in real time. No account required — payloads are stored temporarily for debugging.
Use Tool →Revenue Growth Rate Calculator — CAGR Tool
Calculate MoM, CAGR, and period-over-period revenue growth rates from a series of revenue figures. Get a visual growth rate chart, summary metrics, and a 3/6/12/24-month forward projection at your average or custom growth rate.
Use Tool →ARR Growth Planner — Model SaaS Compound Revenue Trajectory and Runway
Set ARR targets and model the new/expansion/churned MRR mix needed to hit annual growth goals
Use Tool →Customer LTV Calculator — Lifetime Value Tool
Calculate Customer Lifetime Value from ARPU, monthly churn rate, and gross margin. Get gross and net LTV, LTV:CAC ratio with benchmark rating, and a churn sensitivity table showing how LTV changes across different churn rates.
Use Tool →Pricing Elasticity Estimator — Model Demand Sensitivity and Revenue Curves
Model demand sensitivity to price changes and estimate revenue impact of pricing adjustments
Use Tool →ARR Calculator — Annual Recurring Revenue Tool
Calculate Annual Recurring Revenue, YoY growth rate, and net new ARR. Enter current and previous ARR (or MRR) with optional movement breakdown to get NRR and a visual ARR bridge.
Use Tool →Revenue Per Employee Calculator — Audit Workforce Productivity and Capital Leverage
Calculate ARR per employee ratio and compare against common SaaS efficiency benchmarks
Use Tool →SaaS Pricing Tier Builder — MRR Estimator
Design and compare SaaS pricing tiers visually. Define plan names, monthly and annual prices, feature inclusions, and CTA text — then preview a live pricing table, copy it as embeddable HTML, and estimate MRR with a conversion rate and plan distribution calculator.
Use Tool →Share Your Feedback
Help us improve this tool by sharing your experience