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Cash Runway Calculator

Estimate how many months your cash balance covers a constant monthly net cash burn.

Use a consistent reporting periodCheck the calculation below

Your business figures

Runs on your device

METRIC SNAPSHOT

Your result

Let’s calculate.

Use the Calculate button to see your result.

Review the method below for assumptions and conventions.

How to use this tool

  1. Enter available cash, monthly cash outflow, monthly cash inflow.
  2. Select Calculate to view the result.
  3. Check the method and assumptions below before using the result.

The method, explained

Net monthly burn = outflow − inflow. Runway = available cash ÷ net burn when net burn is positive.

A WORKED EXAMPLE

With 120,000 in cash and net monthly burn of 10,000, runway is 12 months.

What to keep in mind

Assumes constant monthly flows and immediate cash availability. Receivables, financing, seasonal changes and minimum cash requirements are not modeled. Nonpositive burn does not imply permanent financial security.

Common questions

What if inflow exceeds outflow?

The tool reports no positive burn instead of dividing by zero or displaying a misleading negative runway.

Is runway the same as profitability?

No. Runway is based on cash movement; accounting profit may include noncash items and different recognition dates.

Methodology maintained by ClarityKit. How these tools are built and checked.