What is a good burn rate? The honest answer is the one founders hate: it depends, and any blog handing you a single dollar figure is selling a benchmark that doesn't fit your business. A $50K monthly burn is reckless for a pre-revenue company with $200K in the bank and conservative for a $10M company growing 80% a year. The number on its own means nothing. What makes a burn rate "good" is the relationship between three things — how much cash you have, how fast you're growing, and how much runway that buys you. We talked to a founder terrified of his $180K burn until he saw he had 22 months of runway and was doubling revenue; his burn wasn't a problem, his anxiety was. So let's answer "what is a good burn rate" the way it should be answered — with the ratios that actually tell you whether yours is healthy.
This is for founders at $1M–$50M companies who want a real framework instead of a scary number. We'll cover what "good" depends on, the one ratio that matters most, rough benchmarks by stage, and how to fix a burn that's genuinely too high.
What "a good burn rate" actually means
A good burn rate is one that buys enough runway to hit a milestone that justifies the next raise — or gets you to profitability — without taking on more risk than the business can carry. That's it. It's a relationship, not a number.
Two companies can have identical $100K monthly burn. One has $3M in the bank, growing 100% a year — that's 30 months of runway funding real growth. The other has $600K in the bank and flat revenue — six months of runway funding nothing. Same burn, opposite situations. The first is good; the second is a countdown.
So before you judge your burn, you need three numbers: your monthly net burn (see our breakdown of gross vs net burn rate for why net is the one that drives runway), your cash balance, and your growth rate. Burn in isolation is a vanity worry. Burn against those three is a diagnosis. The burn rate glossary entry covers the base definition if you need it.
It depends on runway, not the absolute number
The first real test of burn is runway: cash ÷ net burn. This is the number that tells you when the clock runs out, and it reframes the whole question.
The widely-used rule of thumb is that you want at least 18 to 24 months of runway right after a raise, and you should start raising again — or cutting — when you hit 6 to 9 months left. Below six months, your negotiating room with investors evaporates, because they can smell the deadline and price it in. Y Combinator's guide to seed fundraising makes the same point: raise from a position of strength, not desperation.
So instead of asking "is $100K a good burn," ask "how many months does $100K of burn leave me?" If the answer is 20 months and you're growing, your burn is fine. If it's 5 months and you're not close to a raise, your burn is too high regardless of how modest the dollar figure looks. Run your own numbers through a runway calculator and a burn rate calculator before you let the absolute number scare you — runway is the gauge, burn is just an input to it.
The burn multiple: the one ratio that matters most
Runway tells you how long you have. The burn multiple tells you whether the burn is productive — and it's the single best test of burn quality for a growing company.
The burn multiple is simple:
Burn multiple = net burn ÷ net new ARR added
It answers: how many dollars are you burning to add one dollar of new annual recurring revenue? A company burning $1M to add $1M of new ARR has a burn multiple of 1. A company burning $2M to add $500K has a multiple of 4 — it's spending four dollars to buy a dollar of growth.
Lower is better. The rough reading, popularized by investor David Sacks of Craft Ventures:
- Under 1 — excellent, efficient growth
- 1 to 1.5 — good
- 1.5 to 2 — okay, watch it
- Over 2 — getting inefficient
- Over 3 — burning a lot for not much growth; investors will push back
The burn multiple is powerful because it ties burn to output. A high burn with a low multiple is a company growing efficiently and worth funding. A low burn with a high multiple is a company that isn't spending much but isn't getting much for it either. When someone asks if your burn is "good," the burn multiple is the number that actually answers them.
Rough benchmarks by stage
With the caveat that context beats any benchmark, here's the directional read by stage. Treat these as sanity checks, not targets.
Pre-seed / pre-revenue. Burn should be minimal — you're proving something, not scaling it. Often $15K–$50K a month, mostly a tiny team. Runway matters more than the multiple because there's little ARR to measure against. The failure mode here is burning like a funded company before you've found a product anyone pays for. Paul Graham's essay on being default alive or default dead is the sharpest framing of why this stage is about survival, not scale.
Seed (early revenue). Burn rises as you build, often $50K–$150K a month. The burn multiple starts to mean something once you have real ARR; aim to keep it under 2 as you find your motion. Runway target: 18+ months post-raise.
Series A ($1M–$5M ARR). Now efficiency is judged seriously. Burn might run $150K–$500K a month, but the burn multiple is what investors anchor on — under 1.5 is a strong signal, over 2.5 invites hard questions. This is the stage where a great burn multiple raises your next round and a bad one stalls it.
Series B+ ($5M+ ARR). Burn can be substantial, but the bar for efficiency is highest. The market rewards a burn multiple near or under 1 and penalizes inefficient growth quickly. "Growth at any cost" is out; efficient growth is the whole game.
Notice what changes across stages: early on, runway is the headline metric; later, the burn multiple takes over. A "good" burn rate is whichever one your stage is judged by, kept in a healthy band. For a stage-specific deeper cut, see burn rate planning for startups.
Signs your burn is actually too high
Forget the dollar figure — these are the real warning signs:
- Runway under 9 months with no raise close. The clock is the problem, full stop.
- Burn multiple over 3. You're spending a lot to grow a little. Either the growth needs to accelerate or the spend needs to come down.
- Burn rising faster than revenue. If spend is growing 40% and revenue 10%, the gap compounds against you every month.
- You can't name what the burn is buying. If you can't point to the specific growth or capability each chunk of spend produces, it's probably waste.
If two or more of these are true, your burn is too high for your situation — independent of whether the number sounds big or small.
How to fix a burn that's too high
If you've diagnosed a genuine problem, the fix is rarely a blanket cut. It's surgical.
Start by separating burn that's buying growth from burn that's keeping the lights on. The goal is to protect the first and trim the second. Cut the software you're not using, the spend with no measurable output, the experiments that haven't worked in two quarters. Look hard at the largest line — usually payroll — and ask whether the team is matched to the stage, because that's where the real money is, uncomfortable as it is.
Then re-check the two ratios. A good cut extends runway past 12 months and improves the burn multiple at the same time — you're spending less and getting more efficient. If a cut extends runway but tanks growth so the burn multiple gets worse, you've cut muscle, not fat. For the full playbook on doing this without kneecapping growth, see our runway extension playbook. The teams that survive a tight stretch are the ones that cut precisely, early, and once — not the ones that slash in a panic at month five.
FAQ
Q: What is a good burn rate for a startup? A: There's no universal number — a good burn rate is one that leaves you 18+ months of runway and a burn multiple under about 2, given your stage and growth. The same dollar burn can be healthy or reckless depending on your cash balance and how fast you're growing. Judge the ratios, not the figure.
Q: What is the burn multiple and what's a good one? A: The burn multiple is net burn divided by net new ARR added — how many dollars you burn to add a dollar of recurring revenue. Under 1 is excellent, 1 to 1.5 is good, over 2 is getting inefficient, and over 3 draws investor pushback. It's the best single test of whether your burn is productive.
Q: How many months of runway should a startup have? A: Aim for at least 18 to 24 months right after a raise, and start raising again or cutting when you reach 6 to 9 months left. Below six months your negotiating position weakens sharply because the deadline becomes obvious and gets priced into the terms.
Q: Is a high burn rate always bad? A: No. A high burn with a low burn multiple and long runway is a company growing efficiently and worth funding. Burn is only bad when it's unproductive — buying little growth — or when it leaves too little runway. The dollar amount alone doesn't tell you which.
Q: How do I calculate my burn rate? A: Net burn rate is total monthly cash out minus cash collected; average it over three months to smooth timing. Then divide your cash balance by net burn to get runway. Use cash actually received, not contracts signed, or you'll understate the real burn.
Q: What's the difference between a good burn rate and being profitable? A: A good burn rate means you're spending efficiently and have enough runway to reach a milestone; profitability means you're not burning at all. Many healthy growth-stage companies run a deliberate burn to grow faster than profitability would allow — that's fine as long as the runway and burn multiple stay in healthy bands.
Q: Should I cut burn or raise more money? A: It depends on your growth and the funding market. If your burn multiple is strong and you're growing well, raising to extend the runway is usually right. If burn is inefficient, cut first — raising more to fund a high burn multiple just buys a bigger version of the same problem.
The takeaway
Stop asking whether your burn rate is a big number and start asking whether it buys enough runway and enough growth. A good burn rate leaves you 18-plus months of cash and a burn multiple low enough that each dollar burned is buying real recurring revenue. Early on, runway is the headline; as you scale, the burn multiple takes over. If runway is under nine months or the burn multiple is over three, you have a real problem — fix it with a precise, early, one-time cut that protects the spend buying growth and trims the spend that isn't.
Know your real burn, runway, and burn multiple at a glance, updated from your books.
