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Burn Rate Calculator

Every founder should know this number cold. Add up where your cash goes each month, see your gross and net burn instantly, and find out exactly how long your runway lasts at today’s pace.

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Your inputs
Everything updates the moment you type
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Monthly spend by category
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Efficiency
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Used to calculate your burn multiple, a favourite investor efficiency metric
Monthly net burn
Plan your raise
₹12.5 L
That gives you 7 months of runway at today’s pace
Gross burn
₹20.5 L
Cash in bank
₹90 L
Runway
7 mo
Burn multiple
6.9×
Where the money goes
Your monthly spend by category
₹20.5L
Gross burn
Salaries & payroll54%
Marketing & sales22%
Rent & operations12%
Software & tools6%
Everything else6%
Runway if you trim burn
Months of cash at lower spend
7 mo
8 mo
10 mo
14 mo
Now
−10%
−20%
−30%
Cash depletion forecast
Projected bank balance month by month
Cash balance
M0M2M4M6M8M10M11
Cash runs out around month 7
This is a simple cash-based projection that assumes steady spend and revenue. Real months vary, so treat it as a planning guide and revisit it whenever your numbers shift.
How this calculator works

Two numbers every founder should know

Gross burn is your total monthly spend. Net burn is what actually leaves the bank once revenue is counted. Divide your cash by net burn and you get runway, the number of months before you run out.

The formulas
Gross burn
Sum of all monthly spend
Net burn
Gross burn − Monthly revenue
Runway (months)
Cash in bank ÷ Net burn
Burn multiple
Net burn ÷ New recurring revenue
Every field explained

What each input actually means

Cash in the bank
Total money available right now across your accounts. This is what your runway is measured against.
Monthly revenue
The cash customers actually pay you each month. Use real collected revenue, not invoiced or projected amounts.
Salaries & payroll
Everything you pay your team, including salaries, contractor fees, benefits and payroll taxes. Usually the biggest slice.
Marketing & sales
Ad spend, agencies, tools, events and anything you spend to win new customers.
Rent & operations
Office, utilities, legal, accounting, logistics and the day-to-day cost of keeping the lights on.
Software & tools
Your SaaS subscriptions, cloud hosting, infrastructure and internal tooling.
Everything else
Any spend that does not fit the categories above, so your total reflects real life.
New recurring revenue added
Net new monthly recurring revenue you add. Pair it with net burn to get your burn multiple.
Benchmarks

How much runway should you keep?

A simple guide to how investors read runway, and where the burn multiple lands you on efficiency.

18+ months: healthy
You have room to build, hit milestones and raise from a position of strength rather than need.
12 to 18 months: comfortable
A solid buffer. Keep an eye on burn and start mapping your next raise well before you hit the floor.
6 to 12 months: start raising
Fundraising takes time. With under a year of runway, the raise should already be in motion.
Burn multiple under 2: efficient
Under 1 is world class, 1 to 2 is healthy. Above 2 means you are paying a lot for each new rupee of revenue.
Questions, answered

Burn rate FAQ

Burn rate is how much cash your company spends each month. Gross burn is your total monthly operating spend, and net burn subtracts the revenue you bring in, so it shows the cash that actually leaves the bank.
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