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Startup Cash Burn Rate & Runway Calculator

Forecast the exact months until capital depletion, evaluate net burn against recurring revenue, and simulate growth runway.

Quick scenarios
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Cash & Operating Inputs

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Runway & Cash Forecast

Remaining Runway15.5 MonthsProjected zero-cash date: Jan 6, 2028
Net Monthly Burn-$16,000/moOperating expenses: $38,000/mo

12-Month Cash Balance Projection

Revenue growth is modeled monthly
Calculator guide

How to use the Cash Burn & Runway Calculator

Calculate monthly cash burn, business runway and projected cash depletion from revenue and expenses.

01Set inputsChoose values, units and assumptions.
02Apply the modelNet burn = Monthly expenses − Monthly revenue. Runway is the modeled time until projected cash reaches zero.
03Read the resultCheck the output against the assumptions before using it.
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What this calculator does

Starting cash is projected month by month using revenue, operating expenses and the planned revenue growth rate. The result shows both the current burn rate and the modeled cash-depletion horizon.

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Formula & method

Net burn = Monthly expenses − Monthly revenue. Runway is the modeled time until projected cash reaches zero.

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Assumptions & notes

  • This is a planning model, not a cash-flow statement.
  • Revenue growth is applied before each month’s net cash flow.
  • If modeled monthly cash flow remains non-negative, runway is shown as unlimited.
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