Should I enter ARR as “annualized” ARR even if I’m measuring one quarter?

Yes. Enter ARR snapshots as annualized ARR at the start and end of the period, then enter net burn for that same period (e.g., that quarter). The calculator uses the change in annualized ARR over the period.

What’s the right “Net Burn” number to use here?

Use net cash burned during the period (cash outflows minus cash inflows from operations), ideally excluding financing cash flows. The key is consistency: same period, same currency, and the same definition every time.

Why is my Burn Multiple huge (or not showing) when growth is flat?

If Net New ARR is near zero, the ratio explodes; if it’s zero, the metric is undefined. That’s a signal that efficiency can’t be evaluated via Burn Multiple until ARR is growing again.

What if ARR went down (end ARR < start ARR)?

You’ll get negative Net New ARR, which makes Burn Multiple negative and not very meaningful as an “efficiency” metric. Treat it as a retention/churn warning and focus on fixing the ARR base before benchmarking burn efficiency.

Burn Multiple Calculator (SaaS Efficiency)

Q: What if ARR went down (end ARR < start ARR)?

You’ll get negative Net New ARR, which makes Burn Multiple negative and not very meaningful as an “efficiency” metric. Treat it as a retention/churn warning and focus on fixing the ARR base before benchmarking burn efficiency.

Burn Multiple Calculator

Measure SaaS growth efficiency: how much net burn you spend to add $1 of net new ARR. Includes scenarios and a short “What It Means” interpretation.

ARR at Start of Period

$/yr

ARR at End of Period

$/yr

Net Burn (Same Period)

Results

Burn Multiple
Category
Net New ARR (ARR end − ARR start) $
Net Burn Used $

What is Burn Multiple?

Burn Multiple is a capital-efficiency metric that compares net cash burn to net new ARR over the same period.

It answers one question: how expensive is your growth in cash terms?

It matters because it connects execution (sales & marketing + R&D spend) to outcomes (ARR expansion), helping you judge scalability, operating leverage, and whether growth is likely to create value relative to your cost of capital.

Formula

Example

A SaaS company reports: ARR at Start = $5,000,000, ARR at End = $6,000,000, Net Burn (same period) = $1,200,000.

Net New ARR:

Burn Multiple:

Interpretation: the company used $1.20 of net cash burn to add $1.00 of net new ARR—a signal to review unit economics drivers like CAC Payback, NRR, Gross Margin, and Rule of 40.

How to Use the Burn Multiple Calculator

Enter your starting ARR, ending ARR, and the net burn for the same period. The calculator will compute Net New ARR and your Burn Multiple automatically.

Enter ARR at Start of Period
- Input your ARR snapshot at the beginning of the period (annualized ARR, not revenue collected).
Enter ARR at End of Period
- Input your ARR snapshot at the end of the same period.
Enter Net Burn (Same Period)
- Add the net cash burned during that period, then let the calculator compute.
Review the Results panel
- Check your Burn Multiple, the category label, and the supporting line items (Net New ARR and Net Burn Used).
Stress-test with scenarios and export
- Use “Try scenarios” to compare outcomes, then use “Share / Embed” if you want to publish the result view.

Frequently Asked Questions

Yes. Enter ARR snapshots as annualized ARR at the start and end of the period, then enter net burn for that same period (e.g., that quarter). The calculator uses the change in annualized ARR over the period.
Use net cash burned during the period (cash outflows minus cash inflows from operations), ideally excluding financing cash flows. The key is consistency: same period, same currency, and the same definition every time.
If Net New ARR is near zero, the ratio explodes; if it’s zero, the metric is undefined. That’s a signal that efficiency can’t be evaluated via Burn Multiple until ARR is growing again.
You’ll get negative Net New ARR, which makes Burn Multiple negative and not very meaningful as an “efficiency” metric. Treat it as a retention/churn warning and focus on fixing the ARR base before benchmarking burn efficiency.

Methodology & Sources

Bibliography

David Sacks (2020). The Burn Multiple: How Startups Should Think About Capital Efficiency — Bottom Up (Substack) https://sacks.substack.com/p/the-burn-multiple-51a7e43cb200
Accessed 2025-12-15
Justin Kahl; David George (2022). A Framework for Navigating Down Markets — Andreessen Horowitz (a16z) https://a16z.com/a-framework-for-navigating-down-markets/
Accessed 2025-12-15
Kent Bennett; Talia Goldberg; Mike Droesch; Janelle Teng; Caty Rea; Ariel Sterman; Christine Deakers (2023). State of the Cloud 2023 — Bessemer Venture Partners https://www.bvp.com/atlas/state-of-the-cloud-2023
Accessed 2025-12-15

Burn Multiple Calculator

Results

What It Means

What is Burn Multiple?

Formula

Example

How to Use the Burn Multiple Calculator

Enter ARR at Start of Period

Enter ARR at End of Period

Enter Net Burn (Same Period)

Review the Results panel

Stress-test with scenarios and export

Frequently Asked Questions

Methodology & Sources

Bibliography

Other Calculators in SaaS Metrics

Average Order Value (AOV) Calculator

Gross Revenue Retention Calculator

SaaS Rule of 40 Calculator

Average Revenue Per User (ARPU) Calculator

SaaS Magic Number Calculator

Annual Recurring Revenue (ARR) Calculator