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Unitly

Cash Runway Calculator

Runway is the countdown every cash-constrained business watches: cash on hand divided by monthly net burn. This calculator shows months left and flags when burn is zero or negative.

Inputs

Results

Runway

10.0 months

Net monthly burn
$8,500.00
Weekly burn
$1,963.05

Runway assumes flat cash flows. Model changes in revenue or costs as new scenarios rather than trusting a single number.

Formula

Runway = Cash ÷ (Outflows − Inflows)

FAQ

When should I start worrying?

Common practice: act when runway drops below 6–9 months. Raising money or cutting costs both take longer than expected.

Does this include receivables?

Only cash actually in the bank. Money owed to you doesn't extend runway until it arrives — timing gaps are exactly what kills otherwise profitable businesses.