Finance

Cash Runway Calculator

Estimate how many months current cash will last. Results are estimates and are calculated locally on your device.

Use this result as a planning estimate, not financial, tax, legal, or professional advice.

How to use this tool

Understand the result before you act on it

Estimate how many months your current cash balance can support the business at its present burn rate.

Formula

How it is calculated

Cash balance รท monthly net cash burn.

Example

Worked example

With $180,000 in cash and $30,000 monthly net burn, estimated runway is 6 months.

Decision use

What to do with the number

Use the result as a baseline, test different assumptions, and compare scenarios before changing budgets, staffing, pricing, or processes.

Common questions

Cash Runway Calculator FAQ

What is cash runway?

Use the calculator with your own business inputs and compare the result over a consistent period. The output is a planning estimate, so validate important decisions against your accounting or operating data.

What if my monthly burn changes?

Use definitions that stay consistent from one measurement period to the next. Consistency makes the result more useful for comparisons and trend tracking.

Should founders use gross burn or net burn?

No. The calculator provides an estimate from the values you enter. Real outcomes depend on pricing, operations, customer behavior, data quality, and other business conditions.