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Startup Cash Runway Calculator

Find out how many months your cash lasts, when you hit zero, and when you should start your next raise.

Updated for 2026FreeNo sign-up

Why runway is shorter than it looks

Dividing cash by today’s burn assumes spend stays flat. In practice hiring, tooling and inflation push it up every month, so this calculator compounds your spend growth.

Plan the raise, not the close

A round typically takes four to six months from first meeting to money in the bank. Start at least six months before your zero-cash date.

Questions

Frequently asked questions

What is cash runway?

The number of months your company can operate before running out of cash, based on your current cash, spending and revenue collected.

What is a healthy runway for a startup?

Most founders aim for 18 to 24 months after a raise, and to start the next raise with at least six months left.

Should I include SR&ED refunds?

Only once a claim is filed and the timing is reasonably certain. Treat expected refunds as upside, not base-case cash.

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