Startup Runway Calculator

Calculate how many months of runway you have.

Cash divided by net burn, with clear handling when revenue covers expenses.

Quick answer

Startup runway equals cash divided by net monthly burn. Enter cash, monthly expenses, and monthly cash revenue to calculate net burn and months remaining. Free, no account.

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Example: $30K cash, $8K expenses, $3K cash revenue.

Use cash amounts for the same typical month.

Cash available now.

Gross burn before revenue.

Collected cash revenue, not pipeline.

Example output

You have 6.0 months of runway.

$30,000 cash divided by $5,000 net monthly burn.

#1

Gross burn

$8,000.00 monthly cash expenses

#2

Cash revenue

$3,000.00 collected monthly

#3

Net burn

$5,000.00 expenses minus revenue

Stress-test lower revenue or a planned hire before committing.

How it works

01

Enter cash and monthly flows

Cash, expenses, and collected cash revenue.

02

Get net burn and runway

See the formula and every input behind the result.

03

Stress-test the plan

Model a hire, expense increase, or revenue decline.

Related diagnosis

About this tool

What is the startup runway calculator formula?

Runway in months equals cash in the bank divided by net monthly burn. Net burn equals monthly cash expenses minus monthly cash revenue.

Should I use gross burn or net burn?

Use net burn to estimate the cash-out date. Track gross burn separately so you understand the cost base before revenue offsets it.

What if monthly revenue is higher than expenses?

The current inputs do not produce a finite cash-out date. Model lower revenue or a new expense to stress-test the business.

How often should I recalculate startup runway?

Recalculate monthly and after a hire, funding event, large expense, or meaningful change in recurring revenue.