Burn Rate Calculator
Monthly burn and how many months of runway are left.
Runway
11.1 months
at $45,000.00/month net burn
Gross burn
$80,000.00
Net burn
$45,000.00
Runs out around
11 mo 3 d
ShowHide the working
- 1Net burn = $80,000.00 − $35,000.00 = $45,000.00
- 2Runway = $500,000.00 ÷ $45,000.00 = 11.1 months
Formula
runway = cash ÷ (expenses − revenue)How it works
How many months of cash remain at the current net burn. Positive cash flow shows as infinite runway.
Example
$500k in the bank burning $45k net a month is about 11 months of runway.
About the Burn Rate Calculator
Monthly burn and how many months of runway are left. It sits in the Business & Sales section of NWS Calc, a free collection of calculators that run entirely in your browser. There is no signup, no paywall and no tracking — open the page, enter your numbers, get an answer.
Frequently asked questions
- Is the Burn Rate Calculator free to use?
- Yes. Every calculator on NWS Calc is completely free, with no signup, no usage limits and no ads.
- Does my data leave my device?
- No. The Burn Rate Calculator runs entirely in your browser using JavaScript. Nothing you type is uploaded, logged or stored on a server.
- Can I use the Burn Rate Calculator on my phone?
- Yes. The page is fully responsive and works in any modern mobile or desktop browser — there is nothing to install.
- What else is in Business & Sales?
- Margins, markup, tax, payroll, discounts and break-even analysis. You can browse the full Business & Sales category for related calculators.