Cash runway calculator

Forecast how long a cash balance may last with monthly revenue, expenses and revenue growth. Explore a simple operating runway scenario and review the first 12 months of projected closing cash.

3 guest runs per rolling 24 hours10 with a free accountPrivate inputsMobile-friendly

Cash runway calculator workspace

Runs locally in your browser

The forecast holds expenses flat and applies the entered growth rate to monthly revenue. It is a scenario, not a cash-flow guarantee.

Result

Estimated runway—

Current monthly net burn—

Monthly break-even revenue—

Forecast summary—

First 12 months of the forecast

Use it with confidence

How to use the cash runway calculator.

Add the requested inputs

Use the labelled fields in the workspace above. If example values are provided, try them first or replace them with your own.

Calculate and review

Use the main action when needed. Each forecast month adds revenue and subtracts flat expenses, then applies the entered growth rate to the following month’s revenue.

Try a worked example

Model £60,000 cash, £10,000 monthly revenue and £15,000 expenses, then test whether monthly revenue growth reaches break-even in time.

Check the assumptions

This is a simplified planning model, not a cash-flow forecast: expenses remain flat and financing, tax dates, working capital and one-off movements are excluded.

Helpful answers