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SaaS cash planning

Startup Runway Calculator

Estimate startup net burn and cash runway with optional growth scenarios.

Planning inputs

About Startup Runway Calculator: Cash & Net Burn

Estimate simple cash runway and a growth-adjusted scenario from cash, monthly revenue, expenses, and optional growth.

Change the example inputs to match a scenario and review the methodology and limitations before using the result in a decision. Calculations run locally in your browser.

How the calculation works

Net burn

Monthly operating expenses − monthly revenue.

Simple runway

Current cash ÷ positive net monthly burn.

How to use this calculator

  1. 1Replace the example values with internally consistent inputs.
  2. 2Review all result cards and any not-applicable state.
  3. 3Compare multiple scenarios and verify important assumptions independently.

Understanding the result

A profitable or zero-burn company has no finite simple runway and is labeled not applicable.

Growth-adjusted runway iterates monthly for up to 600 months.

Important limitations

  • Outputs are planning estimates and do not include every provider, accounting, financing, tax, legal, or operational factor.
  • Invalid divisions are shown as not applicable rather than NaN or Infinity.
  • Funding rounds, taxes, working capital, irregular expenses, and cash timing are excluded.

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Frequently asked questions

What does the Startup Runway Calculator: Cash & Net Burn calculate?

Estimate simple cash runway and a growth-adjusted scenario from cash, monthly revenue, expenses, and optional growth.

Are the results guaranteed?

No. Results are deterministic estimates from the values and assumptions you enter.

How should I use the result?

Use it for planning and scenario comparison, then verify current rates, costs, accounting definitions, and professional requirements that apply to your situation.

Is entered data uploaded?

No. The calculation runs in your browser.

Use with

These tools support a practical next or previous step in the same workflow.

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