Burn Rate vs Run Rate: Two Very Different Metrics

"Run rate" and "burn rate" sound like rhyming siblings. They are not — they measure opposite things. One measures revenue. The other measures expenses. Confusing them in a board meeting is a fast way to lose credibility.

The definitions side by side

Term	What it measures	Typical units
Burn rate	Monthly cash spent	$ per month
Run rate	Annualized revenue	$ per year (ARR)

Burn rate is about spending. Run rate is about earning. Burn is monthly. Run rate is annualized. They are not synonyms.

How run rate is calculated

Run rate takes a recent revenue period and multiplies it forward. The most common version is annual run rate (ARR):

• Last month's revenue: $50,000
• Annualized: $50,000 × 12 = $600,000 ARR

It is a projection, not an actual. It assumes the next 12 months mirror the last month, which is rarely true. ARR is most honest for subscription businesses where revenue actually does recur month after month. For businesses with seasonal or one-time revenue, ARR can be misleading.

How burn rate is calculated

Burn rate looks backward at one or more recent months of expenses:

• Last month's expenses: $70,000
• Last month's revenue: $20,000
• Net burn rate: $50,000/month

It is a snapshot of cash flow direction.

Why people confuse them

Both terms became startup vocabulary in the same era (1990s VC scene), and both are quoted in pitch decks and board updates. The phrase "burning rate" sometimes gets shortened to "burn rate," while "running rate" gets shortened to "run rate" — and the two contractions sound nearly identical.

Adding to the confusion: a healthy startup wants low burn and high run rate. Both numbers move in the same direction (good), but they measure different things.

Healthy vs unhealthy combinations

Burn rate	Run rate	Health
Low	High and growing	Excellent — efficient growth
High	High and growing	OK — funded scale-up
Low	Low and flat	Survival mode — extending life
High	Low and flat	Critical — burning fast with no traction

The bottom row is where startups die. High burn with no revenue growth means runway shortens fast and the next raise is uncertain. The top row is the dream — building something users pay for, faster than you spend.

When to use which metric

• Run rate: Talking about company size, growth speed, valuation comps. "We are at $1.2M ARR and growing 12% month-over-month."
• Burn rate: Talking about cash management, runway, hiring decisions. "We are burning $80K and have 14 months of runway."

Use both in any complete picture of company health. Run rate alone hides the cost. Burn rate alone hides the upside. Together they tell the real story.

Track your monthly burn precisely with the burn rate calculator. Even better — track it alongside your monthly revenue so you can see both sides of the equation.