Burn Rate Calculator to Calculate Your Cash Runway
Track Your Startup’s Cash Runway
⚡ Free burn rate calculator by MarxisSolution — know exactly when you’ll run out of cash
Calculate your monthly burn rate, cash runway, and burn multiple in seconds. See if you have 6 months of runway—or need to take action now.
Founders often discover they have less runway than they assumed the moment they actually run the numbers — catching that early is what turns a 4-month scramble into a 10-month plan.
Burn Rate Calculator
🔥 Burn Rate Analysis
⏱️ Cash Runway
📊 Runway Health Gauge
🚨 Recommended Actions
- 1 Your runway is critical – take immediate action
- 2 Review and cut non-essential expenses
- 3 Consider immediate fundraising
- 4 Focus on increasing revenue
📥 Download Burn Rate Template
Get the Excel template with 12-month runway projection and expense tracking.
Download Excel Template (Free)Includes: Burn rate tracking, runway calculator, expense categories
Calculate & Manage with Burn Rate Calculator
Calculate Gross Burn
Add up all your monthly expenses: salaries, software, marketing, rent, and other operating costs. This is your gross burn rate – total cash going out.
Calculate Net Burn
Subtract your monthly revenue from gross burn. Net burn is the actual cash you’re losing each month. If revenue > expenses, you’re profitable!
Calculate Runway
Divide your current cash balance by net burn. Result = months until you run out of cash. Aim for 12-18 months minimum.
Take Action
If runway < 6 months: cut costs, raise prices, or start fundraising immediately. Don't wait - runway disappears faster than you think.
Understanding Burn Rate
Burn rate is the rate at which a startup spends its cash reserves. It’s one of the most critical metrics for early-stage companies, directly determining how long you can operate before needing additional funding or reaching profitability.
Gross Burn vs Net Burn: What’s the Difference?
Gross Burn Rate
Your total monthly operating expenses — salaries, rent, software, marketing, and all other costs.
Net Burn Rate
Gross burn minus monthly revenue — the actual cash leaving your account each month. Runway is calculated from this number.
Example: If your startup spends $50,000/month and earns $20,000 in revenue — gross burn is $50,000, net burn is $30,000.
Healthy Burn Rate Benchmarks by Stage
10 Proven Strategies to Reduce Burn Rate
Cancel tools you haven’t used in 30 days. The average startup wastes $3,000/year on unused software.
Ask for 10-20% discounts or annual prepayment terms.
Replace paid tools with free equivalents like GIMP instead of Photoshop, Odoo instead of Salesforce.
Review AWS/Azure/Google Cloud usage. Right-size instances and delete unused resources.
Every new hire adds $8,000-15,000 to monthly burn including salary, benefits, and tools.
Pay only for work needed, not for idle time.
Pause channels that aren’t delivering qualified leads.
Eliminate or downsize office space to save $2,000-10,000/month.
Reduce team size through efficiency tools like Zapier, Make, or custom automation.
Exchange your SaaS product for services you need instead of paying cash.
When to Worry About Your Burn Rate
🚩 Warning signs that need immediate attention:
- Runway is less than 6 months
- Burn rate is growing faster than revenue
- You’re hiring without clear revenue milestones
- Customer acquisition cost exceeds customer lifetime value
- You’re spending more on non-essential items than core product development
The Relationship Between Burn Rate and Runway
Your burn rate directly determines your runway. If you have $500,000 in cash:
A 20% reduction in burn extends runway by 25%. That’s why reducing burn is often the fastest path to extending runway.
Burn Multiple: The Metric Investors Care About
Investors look at your burn multiple — how much cash you’re burning for every dollar of new revenue you add.
Example: $50,000 burn ÷ $25,000 new revenue = 2x. $30,000 burn ÷ $30,000 new revenue = 1x (more efficient).
Lower is better: under 1x excellent, 1-2x good, 2-3x concerning, above 3x is a warning sign.
This is the same calculation the Burn Multiple field above uses — see the FAQ below for more depth.
How Bootstrapped Founders Manage Burn Differently
Unlike VC-funded startups, bootstrapped founders often:
- Keep burn rates under $30,000/month even at scale
- Focus on profitability before hiring aggressively
- Use contractors and automation instead of full-time employees
- Delay office space until absolutely necessary
- Grow revenue before increasing expenses
This approach reduces pressure, extends runway, and gives founders more control over their destiny.
Frequently Asked Questions
Gross burn is your total monthly expenses (all cash going out). Net burn is gross burn minus monthly revenue – it’s the actual cash you’re losing each month. If you’re profitable, net burn is negative (you’re adding cash).
For bootstrapped startups, aim for 12-18 months of runway. This gives you enough time to hit milestones and raise funds if needed. If you’re below 6 months, you’re in the danger zone and need immediate action.
Burn multiple = net burn ÷ new revenue added. Under 1x is excellent (efficient growth), 1-2x is good, 2-3x is concerning, over 3x is dangerous. It measures how efficiently you’re turning cash into growth. Benchmarking Data for SaaS Companies by SaaS capital research provides deeper context on burn multiples and related topics.
Calculate your burn rate monthly when you close your books. Track trends – is burn increasing faster than revenue? This early warning system prevents cash crises.
Start with non-essential: software subscriptions, office perks, marketing with poor ROI, consultants. Preserve headcount and core product development. Every dollar saved extends runway.
Your break-even point = monthly burn ÷ profit per customer. Use our SaaS Break-Even Calculator to input your fixed costs, ARPU, and variable costs to see exactly how many customers you need to become profitable and stop burning cash.
More Tools to Plan Your Startup
Now that you know your burn rate, here’s what to figure out next.