Free Startup Runway Calculator

Calculate how many months your startup can operate before running out of cash, factoring in burn rate and revenue.

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The Runway Calculator is a free, no-signup tool from Vibe Ideas. Calculate how many months your startup can operate before running out of cash, factoring in burn rate and revenue. Formula: Runway = Cash Balance / (Monthly Burn Rate - Monthly Revenue).

What does the Runway Calculator do?

Calculate how many months your startup can operate before running out of cash, factoring in burn rate and revenue.

Knowing your runway helps you plan fundraising, manage spending, and make strategic decisions. Most investors recommend maintaining at least 12-18 months of runway.

How does the Runway Calculator work?

The Formula: Runway = Cash Balance / (Monthly Burn Rate - Monthly Revenue)

  1. Gather your inputs. Collect the values needed: Current Cash Balance ($), Monthly Burn Rate ($), Monthly Revenue ($). Use real numbers from your analytics or finance dashboard when possible.
  2. Enter the numbers. Type each value into the matching field on the Runway Calculator. The calculator runs entirely in your browser — nothing is stored or sent to a server.
  3. Read the result and act on it. Knowing your runway helps you plan fundraising, manage spending, and make strategic decisions. Most investors recommend maintaining at least 12-18 months of runway.

Inputs you'll need

Why it matters for your startup

Knowing your runway helps you plan fundraising, manage spending, and make strategic decisions. Most investors recommend maintaining at least 12-18 months of runway.

Frequently Asked Questions

What is the Runway Calculator?

Calculate how many months your startup can operate before running out of cash, factoring in burn rate and revenue.

Why should I use the Runway Calculator?

Knowing your runway helps you plan fundraising, manage spending, and make strategic decisions. Most investors recommend maintaining at least 12-18 months of runway.

How is the Runway Calculator calculated?

The Runway Calculator is calculated using the following formula: Runway = Cash Balance / (Monthly Burn Rate - Monthly Revenue).

Is the Runway Calculator free?

Yes — the Runway Calculator is 100% free and requires no signup, account, or credit card. Run it as many times as you need while iterating on your startup.

How accurate is the Runway Calculator?

The output reflects the inputs you provide. For directional planning and pitch decks, it is reliable. For board-level financial decisions, treat the result as a starting point and stress-test with alternative scenarios.

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