Burn rate and runway calculator
Enter your cash, monthly expenses and revenue. See your burn and how many months of runway you have.
- Gross and net burn
- Revenue growth option
- Free, no sign-up
Founder taxes
Founder salary, ESOPs and startup tax benefits all need planning. Our experts help.
Questions people often ask
Can startup ESOP tax be deferred?
For eligible startups, employees can defer the tax on exercise for up to 5 years, or until they leave or sell.
Is there a startup tax holiday?
Eligible DPIIT-recognised startups can claim 100% of profits for 3 years out of 10 under section 80-IAC.
Runway in one line
Cash ÷ net burn.
- Gross burn: what you spend a month.
- Net burn: spending minus revenue.
- Runway: cash ÷ net burn.
Last reviewed 9 October 2026. The rules in this calculator come from these official sources.
- Individuals with business or professional income Income Tax Department
Common questions
What is burn rate?
How much cash the business spends each month. Gross burn is total spending; net burn is spending minus revenue.
What is runway?
Cash ÷ net burn: the months until the money runs out at today's rate.
How much runway do I need?
Many founders aim for 18 to 24 months and start raising with at least 6 to 9 months left.
Does revenue growth help?
Yes. Growing revenue cuts net burn each month and extends runway.
What if revenue already covers costs?
Then you're not burning cash, and runway isn't limited.