1-Byte

Free Finance & Planning tool

Startup Runway Calculator

Runway shows how long your current cash balance could last at a steady burn rate. Change the figures to explore a slower or faster growth plan.

Your inputs

Try the example values, then enter your own. This tool runs in your browser.

Your result

Use the example or enter your figures, then calculate.

This is a planning estimate. Cash receipts, taxes, debt, seasonality and changing costs can move the real date.

How it works

Net monthly burn = monthly costs − monthly revenue. Runway = (cash − one-off spending) ÷ net monthly burn.

Common questions

What if revenue covers costs?

The model shows no finite runway when monthly cash received is at least monthly cash paid out. Keep monitoring timing and one-off payments.

Does this include tax?

Include tax payments in the costs or one-off spending fields when you expect to pay them.

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