Burn Multiple Calculator

The Burn Multiple Calculator calculates capital efficiency by comparing net cash burn to net new ARR, enabling benchmarking across periods.

Burn Multiple Calculator Explained

Burn multiple is a simple ratio: cash burned divided by net new ARR in the same period. It connects your spending to the growth it produces. Lower is better because it means you grow more for each dollar burned.

Investors use this metric to compare companies across stages and business models. Founders use it to set spending plans and funding timelines. Finance teams track it across quarters to see trends and spot when growth is getting more or less efficient.

This ratio differs from CAC payback and the Rule of 40. CAC payback focuses on customer acquisition and gross margin recovery. Rule of 40 blends growth and profitability. Burn multiple focuses on capital efficiency: the cash cost of new recurring revenue. Typical ranges by stage vary, but many high-performing SaaS companies aim for 0.5–1.5 during strong growth.

Burn Multiple Formulas & Derivations

The core formula is easy, but there are variants for different accounting setups. Choose the version that best matches your records and reporting practices. Keep assumptions consistent across periods so your trend is reliable.

• Baseline: Burn Multiple = Net Burn ÷ Net New ARR
• Net Burn = Operating Cash Outflows − Operating Cash Inflows (exclude financing and investing cash flows)
• Net New ARR = ARR at period end − ARR at period start (or Gross New ARR − Churned ARR)
• Gross-margin adjusted: GM Burn Multiple = Net Burn ÷ (Net New ARR × Gross Margin)
• Revenue variant: Net Burn ÷ Net New Revenue (use when ARR is unavailable or not meaningful)

The baseline version ties cash spent to new recurring revenue created. The gross-margin version asks a tougher question: how much burn for each dollar of profit-producing ARR? If you sell multi-year deals with upfront cash, be careful. Use ARR, not billings, to avoid distorted results. When denominator values are tiny, the ratio swings widely; use quarterly or trailing-twelve-month views to stabilize that volatility. Clear breakdowns of cash and ARR drivers help explain changes to boards and investors.

How to Use Burn Multiple (Step by Step)

The ratio works best when your period, inputs, and accounting choices are consistent. Decide if you want a quick snapshot or a more detailed view with gross margin and adjustments. Then compute, compare to ranges, and track the trend.

• Pick a period, such as a quarter or month, and keep that choice consistent.
• Gather operating cash flows and starting and ending ARR for that same period.
• Calculate net burn by subtracting operating inflows from operating outflows.
• Calculate net new ARR by subtracting starting ARR from ending ARR.
• Optionally apply gross margin to net new ARR to get a margin-adjusted multiple.
• Compare the result to internal targets and external ranges for your stage and model.

Use a breakdown of outflows (payroll, marketing, R&D, G&A) to spot what drives changes. If ARR growth is lumpy, also view a rolling average. Document assumptions, such as how you treat discounts or one-time items. That way everyone understands the basis for the number.

What You Need to Use the Burn Multiple Calculator

Before you start, gather a few standard finance inputs. Keep them for the same period and currency. If your accounting is cash-based, stick to that for each comparison period.

• ARR at period start and ARR at period end (or gross new ARR and churned ARR)
• Total operating cash outflows (payroll, vendors, marketing, rent, tools)
• Total operating cash inflows (customer receipts, net of refunds; exclude debt and equity)
• Gross margin percentage for the period (optional but recommended)
• Period length and currency settings (for consistent timing and unit handling)
• Adjustments for one-time or non-operating items (e.g., legal settlement, M&A costs)

Watch the ranges and edge cases. If net new ARR is near zero or negative, the ratio can spike or become undefined. If you are cash-flow positive, burn can be negative, and the multiple can be below zero. Enterprise deals may create lumpy ARR changes, so compare a single quarter to a trailing-twelve-month view. Note any unusual assumptions alongside your result.

Using the Burn Multiple Calculator: A Walkthrough

Here’s a concise overview before we dive into the key points:

1. Choose the period you want to analyze, such as Q2 of the current year.
2. Enter ARR at the start and end of the period, or enter gross new and churned ARR.
3. Enter operating cash outflows and operating cash inflows for the same period.
4. Select your gross margin percentage if you want the margin-adjusted multiple.
5. Add any adjustments to remove one-time or non-operating items from the breakdown.
6. Review the calculated multiple and the category breakdown of burn drivers.

These points provide quick orientation—use them alongside the full explanations in this page.

Worked Examples

High-growth SaaS, quarterly view: Starting ARR is $10.0M, ending ARR is $10.8M, so net new ARR is $0.8M. Operating cash outflows are $3.0M, inflows are $1.8M, so net burn is $1.2M. Burn multiple is $1.2M ÷ $0.8M = 1.5. If gross margin is 80%, margin-adjusted multiple is $1.2M ÷ ($0.8M × 0.8) = 1.875. What this means: Growth is solid but costs are high; track marketing and hiring plans to move toward the 1.0–1.3 range.

Enterprise-heavy SaaS, lumpy quarter: Starting ARR is $24.5M, ending ARR is $24.6M, so net new ARR is $0.1M. Operating outflows are $4.2M, inflows are $2.7M, so net burn is $1.5M. Burn multiple is $1.5M ÷ $0.1M = 15.0, which looks extreme. But a late-quarter $1.4M deal slipped into next quarter. On a trailing-twelve-month basis, net new ARR is $7.5M, and total net burn is $10.2M, so the multiple is 1.36. What this means: A single quarter looks bad because of timing; use rolling ranges and note deal slippage in assumptions.

Accuracy & Limitations

Burn multiple is powerful because it is simple and comparable. But every shortcut has limits. Be mindful of the context, the period, and the assumptions behind your inputs.

• Denominator sensitivity: When net new ARR is small, the ratio becomes noisy or misleading.
• Accounting mismatch: Using billings or GAAP revenue instead of ARR can distort results.
• Cash flow mix-ups: Including financing or investing cash flows inflates or deflates burn.
• Margin blindness: Ignoring gross margin hides the true economic cost of growth.
• Deal lumpiness: Enterprise wins and renewals can skew a single period; use rolling views.

Use this metric with other indicators such as CAC payback, NRR, and operating margin. Taken together, they give a full breakdown of efficiency, growth durability, and profitability. The goal is not a single perfect number, but a consistent, comparable view across time and scenarios.

Units and Symbols

Units matter because this ratio mixes dollars, percentages, and time. Keep currency consistent and track period length. Clear symbols and definitions reduce confusion when you share reports.

Read the table left to right: symbol, meaning, then an example value. If you change currency, convert all values before calculating. Keep the period consistent so your q/q or monthly comparisons stay valid.

Common Issues & Fixes

Most mistakes come from mixing inputs or misclassifying cash flows. Small changes fix most problems and produce clearer trends.

• Including debt or equity inflows in operating cash: remove financing and investing items.
• Using billings instead of ARR: switch to ARR or explain the difference in your assumptions.
• Comparing a monthly result to quarterly ranges: align period length before benchmarking.
• Ignoring refunds or chargebacks: net them in operating inflows.
• Not adjusting for one-time costs: mark and exclude them for a cleaner breakdown.

After fixes, rerun the ratio and track it for at least two or three consecutive periods. The trend matters more than any single data point, especially in lumpy sales cycles.

FAQ about Burn Multiple Calculator

What is a good burn multiple?

Many strong SaaS companies target 0.5–1.5 during fast growth. Early companies may run higher; mature firms strive for lower. Compare within your stage and model.

Should I adjust for gross margin?

Yes, if you want to reflect the profit potential of each ARR dollar. Margin-adjusted burn multiple raises the bar and is helpful for planning and board updates.

Can I use revenue instead of ARR?

If ARR is not available or unreliable, you can use net new GAAP revenue. Document that assumption and be consistent across periods for fair comparisons.

How often should I calculate it?

Quarterly is common. Monthly can work for earlier-stage teams. Maintain the same period length to keep ranges comparable and the trend meaningful.

Glossary for Burn Multiple

Burn Multiple

The ratio of net cash burn to net new ARR over a period, showing the cash cost of growth.

Net Burn

Operating cash outflows minus operating cash inflows for a period, excluding financing and investing.

Gross Burn

Total operating cash outflows before considering any operating inflows.

Annual Recurring Revenue (ARR)

The annualized value of active subscriptions at a point in time.

Net New ARR

ARR added during a period, equal to ending ARR minus starting ARR, or gross new minus churned.

Gross Margin

Revenue minus direct costs, expressed as a percentage of revenue.

CAC Payback

The time needed for gross margin from a customer to cover acquisition cost.

Rule of 40

A guideline where growth rate plus operating margin should be at least 40%, balancing growth and profitability.

Sources & Further Reading

Here’s a concise overview before we dive into the key points:

• Craft Ventures: The Burn Multiple (David Sacks)
• SaaStr: What’s a Good Burn Multiple?
• Investopedia: Burn Rate Definition and Examples
• Bessemer Venture Partners: The 10 Laws of Cloud
• Sequoia: A Guide to SaaS Metrics

These points provide quick orientation—use them alongside the full explanations in this page.