Burn Multiple vs Rule of 40
Burn Multiple (Burn Multiple) and Rule of 40 (Rule of 40) both come up in business conversations and get confused. Here's the plain-English difference, side by side, so you can use each one with confidence.
The key difference: Burn Multiple refers to burn multiple, while Rule of 40 refers to rule of 40 — they describe different things even when they show up in the same sentence.
Burn Multiple — Burn Multiple
Net cash burn divided by net new ARR. Less than 1 is elite efficiency, 1–2 is healthy, above 3 means you're lighting money on fire to grow.
Full Burn Multiple definition →
Rule of 40 — Rule of 40
Growth rate plus profit margin should sum to at least 40 for a healthy SaaS business. It forces the trade-off between growth and profitability into a single board-ready number.
When to use Burn Multiple
Reach for "Burn Multiple" when the conversation is specifically about burn multiple. Net cash burn divided by net new ARR. Less than 1 is elite efficiency, 1–2 is healthy, above 3 means you're lighting money on fire to grow.
When to use Rule of 40
Reach for "Rule of 40" when the conversation is specifically about rule of 40. Growth rate plus profit margin should sum to at least 40 for a healthy SaaS business. It forces the trade-off between growth and profitability into a single board-ready number.
FAQs
What is the difference between Burn Multiple and Rule of 40?
Burn Multiple stands for Burn Multiple — Net cash burn divided by net new ARR. Less than 1 is elite efficiency, 1–2 is healthy, above 3 means you're lighting money on fire to grow. Rule of 40 stands for Rule of 40 — Growth rate plus profit margin should sum to at least 40 for a healthy SaaS business. It forces the trade-off between growth and profitability into a single board-ready number.
Are Burn Multiple and Rule of 40 the same thing?
No. They're often used in the same conversation because they're related, but they describe different concepts. Burn Multiple = Burn Multiple. Rule of 40 = Rule of 40.
When should I use Burn Multiple vs Rule of 40?
Use Burn Multiple when you're specifically referring to burn multiple. Use Rule of 40 when the topic is rule of 40.