Business Runway Calculator

Estimate net burn, cash runway, revenue coverage, and whether current growth assumptions reach break-even before cash runs out.

Last updated: 2026-03-25

Business runway calculator

Enter your values

Measure how much time current cash buys and whether modeled revenue growth reaches break-even before that clock runs out.

Runway

Enter cash, revenue, expenses, and a growth assumption to estimate burn and cash runway.

Calculation History(0)

No calculations yet. Complete a calculation to see it here.

Example calculations

Tap an example to prefill the calculator with sample values.

Funded SaaS reset

$240k cash with a $30k monthly burn

A business that is still burning cash but expects revenue to keep compounding as the team cuts toward break-even.

Result: Runway is finite, but steady growth can still get the company to break-even with a healthy cash buffer.

Already profitable

Revenue already covers the monthly base

In a healthier scenario the main question becomes surplus, not how long cash survives.

Result: Profitable businesses treat cash as a buffer rather than a countdown timer.

Flat-growth warning

Short runway without a growth path

Useful when the current plan depends on growth that has not shown up in the numbers yet.

Result: Without growth or cost cuts, runway math becomes brutally simple.

How the runway model works

The calculator starts with current monthly revenue and expenses to estimate net burn and a static runway in months from cash on hand.

If you add a positive monthly revenue-growth assumption, it also estimates when revenue catches expenses and how much cash the business consumes before that break-even point arrives.

Business runway FAQs

How burn, runway, and break-even interact when cash is the limiting constraint.

What is runway, exactly?

Runway is how long current cash lasts before it is exhausted at the present burn rate. It is a survival metric, not a valuation metric.

Why separate runway from break-even?

Because a business can have a path to break-even and still not have enough cash to survive until it gets there. The calculator shows both the timing and the bridge required.

Should I model aggressive growth?

Usually no. Runway planning is most useful when the assumptions are conservative enough to survive real-world misses and delayed sales cycles.

Embed this calculator

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Iframe embed code

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