What's a Good Burn Rate by Startup Stage?

"Is my burn rate too high?" There is no universal answer. The same $80K monthly burn that is conservative for a Series A startup is reckless for a seed-stage one. Burn benchmarks always depend on stage, sector, and how much you have raised.

This guide gives you realistic burn benchmarks at each stage and the metric investors actually use to judge efficiency.

Burn benchmarks by stage

Stage	Team size	Typical net burn	Typical raise	Target runway
Pre-seed	1-3	$5K-$25K/mo	$200K-$1.5M	12-18 months
Seed	4-10	$30K-$150K/mo	$2M-$5M	18-24 months
Series A	15-30	$200K-$500K/mo	$8M-$20M	18-28 months
Series B	40-80	$500K-$1.5M/mo	$25M-$60M	18-30 months
Series C	100+	$1.5M-$4M/mo	$60M-$200M	18-30 months

Notice that the dollar amounts grow but the runway target stays roughly constant. Bigger rounds buy bigger teams that burn proportionally more.

The "raised divided by burn" rule

The simplest sanity check: divide your last round size by your monthly burn. The answer should be close to 18-24 months.

• Raised $3M, burning $150K/mo → 20 months. ✓
• Raised $5M, burning $400K/mo → 12.5 months. Too short.
• Raised $1M, burning $25K/mo → 40 months. Too long (under-investing in growth).

If the result is below 12 months, you raised too little or are burning too fast. If it is above 30 months, you either over-raised or are not deploying capital aggressively enough.

The burn multiple — efficiency over absolute burn

Investors care more about efficient burn than low burn. A startup burning $1M/month while adding $2M of new ARR is healthier than one burning $100K/month while adding $50K. The metric that captures this is the burn multiple:

Burn Multiple = Net Burn ÷ Net New ARR

Burn multiple	Rating	Meaning
Under 1	Amazing	Burning less than new ARR added
1 to 1.5	Great	Highly efficient growth
1.5 to 2	Good	Reasonable for early stages
2 to 3	Suspect	Growth not justifying spend
Over 3	Bad	Inefficient — fix or face hard fundraise

Why pre-PMF burn looks different

Burn multiple only makes sense once you have product-market fit and meaningful revenue. Pre-PMF startups have no ARR to compare burn against. At that stage, the question is simpler: are you learning fast enough to find PMF before the money runs out?

Pre-PMF benchmarks:

• Burn should be low (under $40K/month for most)
• Founders can take below-market salaries
• No paid acquisition until you have something that converts
• Runway target: 18+ months from any given month

Sector matters

Sector	Why burn is higher	Acceptable burn at Series A
Hardware	Inventory + manufacturing	$400K-$800K/mo
Biotech	R&D, clinical trials	$500K-$2M/mo
B2B SaaS	Sales team + paid ads	$200K-$500K/mo
Consumer apps	User acquisition	$300K-$700K/mo
Marketplaces	Two-sided seeding	$300K-$900K/mo

A biotech burning $1.5M/month is normal. A B2B SaaS burning $1.5M/month at Series A is concerning unless growth is exceptional. Compare yourself to your sector, not to all startups.

Red flags at any stage

• Burn multiple over 3 for two consecutive quarters
• Runway below 9 months with no fundraise in progress
• Burn growing faster than revenue
• Costs that founders cannot easily explain in detail
• Heavy reliance on one or two cost centers (often "marketing")

If any of these apply, the answer is not "raise more money." It is "fix the underlying inefficiency first." Investors smell desperation, and rounds raised under pressure come at terrible terms.

Plug your numbers into the burn rate calculator and compare against the stage benchmarks above. Knowing where you stand is the first step to knowing what to change.