What is Burn Rate?

Burn rate measures how quickly a company spends its available cash to cover operating expenses. It is typically calculated on a monthly basis and serves as an important indicator of a company’s financial health. This metric shows how long a business can continue operating before it needs additional funding or increased revenue. Startups, in particular, closely track burn rate to manage their cash runway and avoid potential liquidity problems.

Burn Rate Calculator

Avg. Monthly Burn Rate:

Projected Cash Runway:

Total Spent:

Time Period:

Why do we use it?

Burn rate helps businesses understand their cash flow position and financial sustainability. It plays a key role in budgeting, funding decisions, and long-term growth planning. By monitoring burn rate, companies can provide clear financial insights to investors and stakeholders while ensuring they maintain enough runway to achieve critical business milestones.


How to Calculate a Burn Rate?

  • Record the total cash available at the beginning of the selected period
  • Determine the remaining cash balance at the end of the same period
  • Subtract the ending balance from the starting balance to calculate the total cash spent
  • Define the time period (for example, monthly or quarterly)
  • Divide the total cash spent by the number of months in that period to determine the average monthly burn rate
  • Divide the remaining cash by the monthly burn rate to estimate the number of months of runway remaining

Burn Rate Formula:

Burn Rate = Starting Cash−Ending Cash ÷ Number of Months


Frequently Asked Questions

Burn rate is calculated by comparing monthly cash inflows and outflows. When expenses exceed revenue, the difference represents the burn rate.

You can review burn rate by analysing monthly cash inflows and outflows through bank statements, cash flow reports, or financial statements.

An ideal burn rate allows a company to operate efficiently while maintaining sufficient cash runway. It should align with the company’s growth plans and funding capacity.

Burn rate should typically be reviewed monthly. Early-stage or rapidly growing businesses may monitor it more frequently.

Burn rate shows how quickly a company is spending its available cash and helps estimate how long it can continue operating before requiring additional funding.

A 1% burn rate means the company spends 1% of its total available cash during a specific period, typically measured monthly.

Not necessarily. While a higher burn rate can support rapid growth and expansion, it also increases financial risk if revenue growth does not keep pace.

Common mistakes include ignoring one-time expenses, failing to update calculations regularly, and not linking burn rate analysis to overall cash runway planning.

Better Insights = Better Business Decisions

Making good business decisions begins with good insights. Whiz Consulting offers expert accounting and financial services tailored to your needs.