Calculate your startup's burn rate and cash runway. Find out how long your money will last, what your monthly expenses are, and what revenue you need to reach profitability.
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Gross Burn Rate
$0
Total monthly expenses
Net Burn Rate
$0
Expenses − Revenue per month
Cash Runway
0
Months until cash runs out
Runway in Years & Months
—
Years and months format
Monthly Revenue for Breakeven
$0
Revenue needed to cover expenses
Status
Strong
Runway health assessment
📊 Monthly Expense Breakdown
📝 Step-by-Step Solution
Real-World Burn Rate Examples
🚀 SaaS Startup: Pre-Revenue
A pre-revenue SaaS startup has $800,000 in the bank. Monthly expenses: $40,000 in salaries, $5,000 in rent, $8,000 in software, $15,000 in marketing, and $7,000 in other expenses. Zero revenue yet.
Net Burn Rate: $75,000 − $0 = $75,000/month (same as gross)
Cash Runway: $800,000 ÷ $75,000 = ~10.7 months
This startup has less than a year of runway. They need to either raise more funding or start generating revenue soon to avoid running out of cash.
💼 E-Commerce: Revenue-Generating
An e-commerce business has $200,000 cash balance and generates $30,000/month in revenue. Monthly expenses: $18,000 in salaries, $3,000 in rent, $2,000 in software, $8,000 in marketing, and $4,000 in other expenses.
With a net burn rate of only $5,000/month, this business has over 3 years of runway. The focus should be on increasing revenue to reach breakeven (needs $5,000 more per month).
🏢 Established Startup: Near Profitability
A growing startup has $150,000 cash balance with $85,000/month in revenue. Monthly expenses: $50,000 in salaries, $6,000 in rent, $4,000 in software, $12,000 in marketing, and $8,000 in other expenses.
Net Burn Rate: $80,000 − $85,000 = −$5,000/month (profitable!)
Cash Runway:∞ Infinite (profitable!)
This startup is already profitable with a positive cash flow of $5,000 per month. Revenue exceeds total expenses, meaning the cash balance will grow rather than shrink over time. The focus shifts from survival to growth and reinvestment.
⚠️ Hardware Startup: Critical Runway
A hardware startup has $120,000 cash balance with $5,000/month in revenue. Monthly expenses: $35,000 in salaries, $10,000 in rent (warehouse), $5,000 in software, $20,000 in marketing, and $15,000 in other expenses (prototyping, supplies).
With only 1.5 months of runway, this startup is in critical condition. Immediate action is needed — drastic cost cutting, emergency fundraising, or a significant revenue acceleration. This is a common crunch point for hardware startups with high prototyping and warehousing costs.
Understanding Burn Rate and Cash Runway
Burn rate is a critical metric for startups and growing businesses. It measures how quickly a company is spending its cash reserves. Understanding your burn rate helps you plan fundraising, manage costs, and ensure your business doesn't run out of money before reaching profitability.
The total amount of money your business spends each month across all expense categories.
Net Burn Rate = Gross Burn Rate − Monthly Revenue
The amount of cash your business consumes each month after accounting for revenue. A negative net burn means you're profitable.
Cash Runway = Cash Balance ÷ Net Burn Rate
The number of months until your cash runs out, assuming current spending and revenue levels continue unchanged.
Breakeven Revenue = Gross Burn Rate
The monthly revenue needed to exactly cover all expenses. At this point, net burn rate is zero and the cash balance stabilizes.
How to Calculate Burn Rate Step by Step
1
Identify all monthly expenses: List every category of spending — salaries, rent, software subscriptions, marketing spend, contractor payments, utilities, insurance, and any other operating costs.
2
Calculate gross burn rate: Add up all monthly expenses. This is your gross burn rate — the total amount leaving your bank account each month.
3
Subtract monthly revenue: Deduct your monthly recurring revenue from the gross burn rate. The result is your net burn rate — the actual cash you're consuming each month.
4
Divide cash by net burn rate: Take your current cash balance and divide by the net burn rate. The result is your runway in months — how long until you run out of money.
5
Assess your runway health: Compare your runway to standard benchmarks. Under 3 months is critical (urgent action needed), 3-6 months is warning territory, 6-12 months is healthy, and 12+ months is strong.
Burn Rate Benchmarks
🟢 Strong (12+ months)
Your startup has more than a year of runway. This is a comfortable position that allows for strategic planning, measured growth, and the ability to weather market downturns. Focus on optimizing your business model and sustainable growth.
🟡 Healthy (6-12 months)
A solid runway that gives you time to execute your plan. You should begin thinking about next fundraising steps and monitor your burn rate monthly to ensure it doesn't increase unexpectedly.
🟠 Warning (3-6 months)
Your runway is getting tight. Start reducing discretionary spending, explore new revenue streams, and begin conversations with potential investors. Avoid long-term commitments that increase your fixed costs.
🔴 Critical (Under 3 months)
Immediate action required. Cut non-essential costs, pause hiring, negotiate payment terms with vendors, and urgently seek bridge funding. Every dollar counts — consider temporary measures like salary deferrals or equipment sales.
💰
Instant Burn Rate
Calculate your gross and net burn rate instantly. Know exactly how much cash you're consuming each month and whether your revenue is covering your expenses.
⏱️
Cash Runway Projection
Get an accurate projection of how many months your cash will last. See the result in both months and a years+months format for easy planning.
📊
Expense Breakdown
Visualize your monthly spending across all categories. See which areas are consuming the most cash and identify opportunities to cut costs.
🎯
Breakeven Target
Know exactly how much monthly revenue you need to reach breakeven. Set clear revenue targets and track your progress toward profitability.
Burn rate is a key financial metric that measures how quickly a startup or business is spending its cash reserves. It answers the most critical question every founder faces: "How long until my startup runs out of money?"
There are two types of burn rate every founder should understand. Gross burn rate is the total amount of money your business spends each month — the sum of all expenses including salaries, rent, software, marketing, and operating costs. Net burn rate is the actual cash your business consumes each month after accounting for revenue: gross expenses minus monthly revenue.
Your cash runway is the number of months until your cash balance reaches zero, calculated by dividing your current cash reserves by your net burn rate. If your net burn rate is negative (meaning revenue exceeds expenses), your runway is effectively infinite — you're profitable and your cash balance is growing.
Why Burn Rate Matters for Startups
Fundraising Timing: Investors want to see that you have 12-18 months of runway. Knowing your burn rate helps you plan when to start the next fundraising round (ideally when you still have 6+ months of runway).
Cost Management: Tracking burn rate helps identify which expense categories are growing fastest. A sudden increase in burn rate signals the need for cost controls before it becomes a crisis.
Investor Confidence: Founders who know their burn rate and runway numbers cold demonstrate financial discipline. These are among the first metrics investors ask about in pitch meetings.
Strategic Decisions: Your burn rate influences decisions about hiring, marketing spend, office space, and product development. Every investment should be evaluated against its impact on runway.
Unit Economics Validation: A high burn rate relative to revenue growth may indicate problems with unit economics. If customer acquisition costs are too high relative to lifetime value, the burn rate will tell the story.
How to Extend Your Cash Runway
Extending your runway is about either reducing your burn rate or increasing your revenue. Here are practical strategies for both approaches:
Reduce Your Burn Rate
Cut non-essential spending: Review every expense category. Can you negotiate lower software subscription rates? Can you move to a co-working space instead of a leased office? Are there marketing channels with poor ROI that can be paused? A 10% reduction in burn rate can add months to your runway.
Optimize team costs: Salaries are typically the largest expense for startups. Consider hiring freelancers or contractors instead of full-time employees for certain roles. Implement a hiring freeze until revenue catches up. Some startups use equity compensation to reduce cash salary costs.
Negotiate with vendors: Many vendors will offer discounts for annual prepayments or longer contract terms. Ask for payment term extensions (e.g., Net 60 instead of Net 30) to improve short-term cash flow. Your existing vendors have an incentive to keep you as a customer.
Increase Revenue Faster
Focus on high-margin products: Double down on your most profitable products or services. A 10% increase in revenue has the same effect on runway as a 10% decrease in costs, but revenue growth is more sustainable long-term.
Shorten sales cycles: Offer limited-time discounts, annual payment options, or implementation assistance to close deals faster. Faster cash collection reduces the gap between spending and revenue.
Explore alternative revenue streams: Consulting services, training, premium support tiers, or strategic partnerships can generate quick revenue while your core product continues to develop.
📊 Monthly Tracking
Review your burn rate monthly — not quarterly. Create a simple dashboard that tracks gross burn, net burn, revenue, and runway. Watch for trends, not just absolute numbers.
🎯 Runway Triggers
Set specific runway thresholds that trigger actions. At 9 months: start fundraising prep. At 6 months: begin serious conversations. At 4 months: implement cost cuts. At 2 months: emergency measures.
📈 Scenario Planning
Model best-case, expected, and worst-case scenarios. What happens if revenue drops 20%? What if a big deal closes? Knowing your runway across scenarios helps you prepare for uncertainty.
💡 Revenue Before Perfection
Don't wait for a perfect product to start selling. Get revenue-generating customers as early as possible. Even small amounts of revenue can meaningfully extend your runway and validate your business model.
Frequently Asked Questions
What is the difference between gross burn rate and net burn rate?
Gross burn rate is the total amount of money your business spends each month — the sum of all expenses including salaries, rent, software, marketing, and operating costs. It represents the total cash outflow regardless of revenue. Net burn rate is gross burn rate minus your monthly revenue. It represents the actual cash your business consumes each month. If your net burn rate is positive, you're spending more than you earn and your cash balance is shrinking. If it's negative, you're profitable and your cash balance is growing. Most investors focus on net burn rate because it tells the real story of cash consumption.
What is a healthy burn rate for a startup?
A healthy burn rate depends on your stage, industry, and funding situation. General guidelines: Pre-seed/Seed stage: $30,000-$70,000/month gross burn is typical. Series A: $100,000-$300,000/month. Series B+: $300,000-$1,000,000+/month. What matters more is your runway — you should always have at least 6-12 months of runway. A good rule of thumb: your monthly burn should not exceed 5-10% of your total cash reserves. If you have $1M in the bank, your monthly burn should be under $50,000-$100,000 to maintain adequate runway.
How long should my startup's runway be?
The standard advice is to maintain 12-18 months of runway at all times. This gives you enough time to execute your business plan, reach key milestones, and raise your next round of funding. It also provides a buffer against unexpected market changes or slower-than-expected growth. Fundraising typically takes 3-6 months from initial conversations to money in the bank, so starting the process when you have 9+ months of runway is ideal. If you dip below 6 months of runway, you're in a position of weakness when negotiating with investors.
What happens if my net burn rate is negative?
A negative net burn rate means your monthly revenue exceeds your monthly expenses — congratulations, you're profitable! In this case, your cash balance is growing each month rather than shrinking. Your runway is effectively infinite because you'll never run out of money as long as you maintain profitability. This is the goal for every startup. However, many profitable startups still choose to reinvest heavily in growth, which can temporarily increase burn rate. The key is making conscious, strategic decisions about spending versus letting expenses grow uncontrolled.
What is a good burn rate multiple for startups?
Investors often look at the burn rate multiple — your net burn rate divided by your net new annual recurring revenue (ARR). A good burn rate multiple is typically 1.0x to 1.5x or lower. This means for every dollar you burn, you're generating $0.67 to $1.00 in new annual recurring revenue. A multiple above 2.0x indicates inefficient growth — you're spending too much for the revenue you're generating. Below 1.0x means you're highly efficient. For example, if you burn $100,000/month ($1.2M/year) and generate $1.0M in new ARR per year, your burn multiple is 1.2x — considered healthy for most SaaS startups.
How do I reduce my startup's burn rate quickly?
If you need to reduce burn rate urgently, start with these steps: 1. Pause all non-critical hiring immediately. 2. Cut marketing spend — pause campaigns with unclear or negative ROI. 3. Renegotiate contracts with software vendors and service providers. 4. Reduce office space — consider subleasing or moving to a smaller space. 5. Implement a spending freeze on all non-essential purchases. 6. Consider salary reductions or temporary deferrals for senior leadership. 7. Convert full-time employees to contractors where possible. 8. Focus on high-margin revenue — prioritize sales of your most profitable products or services. The goal is to extend runway without destroying the core capabilities that will drive future growth.
⚠️ Important Note: This Burn Rate Calculator is for educational and informational purposes only. While every effort has been made to ensure accuracy, results should be verified independently for critical business decisions. Burn rate analysis assumes that expenses and revenue remain constant month over month, which may not reflect real-world variability. Always consult a qualified financial professional for major business decisions, especially those involving fundraising, cash management, or strategic pivots.