Burn rate

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This article is about the economics term. For other uses, see Burn rate (disambiguation).

Burn rate is the rate at which a company is losing money.[1] It is typically expressed in monthly terms. E.g., "the company's burn rate is currently $65,000 per month." In this sense, the word "burn" is a synonymous term for negative cash flow. It is also measure for how fast a company will use up its shareholder capital.[2] If the shareholder capital is exhausted, the company will either have to start making a profit, find additional funding, or close down.

The term came into common use during the dot-com era when many start-up companies went through several stages of funding before emerging into profitability and positive cash flows and thus becoming self-sustainable (or, as for the majority, failing to find additional funding and sustainable business models and thus going bankrupt). In between funding events, burn rate becomes an important management measure, since together with the available funds, it provides a time measure to when the next funding event needs to take place.[3]

Some entrepreneurs and investors say that part of the reasons behind the dot-com bust was the unsound management and financial investor practices to keep the burn rate up, taking it as a proxy for how fast the start-up company was acquiring a customer base.

The term burn rate can also refer to how quickly individuals spend their money, particularly their discretionary income. For example, Mackenzie Investments commissioned a test to gauge the spending and saving behavior of Canadians to determine if they are “Overspenders.”[4]

In project management[edit]

Aside from financing, the term burn rate is also used in project management to determine the rate at which hours (allocated to a project) are being used, to identify when work is going out of scope, or when efficiencies are being lost. Simply put, the burn rate of any project is the rate at which the project budget is being burned (spent).[5]

In earned value management, burn rate is calculated via the formula, 1/CPI, where CPI stands for Cost Performance Index, which is equal to Earned Value / Actual Cost.

Other uses[edit]

The term burn rate is also used in a number of scientific settings:[6]

  • In biology, it can refer to a person's basic metabolic rate[7]
  • In rocketry, it can refer to the rate at which a rocket is burning fuel[8]
  • In chemistry, burn rate can refer to the rate at which a reactant is consumed


  1. ^ "Burn Rate 101: How to Calculate and Understand Burn Rate [Downloadable Excel Model Included] - Capshare Blog". Capshare Blog. 2016-06-22. Retrieved 2016-06-22. 
  2. ^ Ehrenberg, David. "Is Your Company Dangerously Rushing To Scale?" Forbes.com January 4, 2013. Retrieved on May 20, 2014.
  3. ^ Ron Conway and Mike Maples, lecture and discussion with science and engineering entrepreneurship students, Stanford Entrepreneurship Corner, 2008.01.23
  4. ^ Financial Post Story
  5. ^ The Project Scorecard
  6. ^ "Burn Rate 101: How to Calculate and Understand Burn Rate [Downloadable Excel Model Included] - Capshare Blog". Capshare Blog. 2016-06-22. Retrieved 2016-06-22. 
  7. ^ "Calorie Burn Rate Calculator". Calorie Burn Rate Calculator. Blue Cross Minnesota. June 22, 2016. Retrieved June 22, 2016. 
  8. ^ "Richard Nakka's Experimental Rocketry Site". www.nakka-rocketry.net. Retrieved 2016-06-22. 

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