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Burn rate calculator

How fast the runway shortens.

Built and reviewed by Dovanic, Founder and editor, FreeByteLast reviewed: 2026-08-18
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Runway

11 mo

Net burn

$41,000

With these inputs, runway comes to 11 mo. Net burn works out to $41,000.

Gross burn
$72,000
Cash out in a year
$492,000

What moves the number · Runway

Input−10%Now+10%
Cash in bank10 mo11 mo1 yr 0 mo
Monthly spend1 yr 2 mo11 mo9 mo
Monthly revenue10 mo11 mo1 yr 0 mo

Solve for an input

Whatmakesequal

Compare scenarios

Save this set of inputs, change something, then save again to compare the outcomes side by side.

How fast the runway shortens.

A worked example

Starting figures

Cash in bank
$480,000
Monthly spend
$72,000
Monthly revenue
$31,000

What it returns

Runway
11 mo
Net burn
$41,000
Gross burn
$72,000
Cash out in a year
$492,000

How to read the results

With the defaults above, runway works out at 11 mo.

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