Runway & Burn-Rate Planner

For every month in the forecast, the tool computes effective net burn as: monthly burn rate − projected monthly revenue. It then subtracts that net burn from your starting cash until cash hits zero. If you choose a funding timing, it adds the funding amount as a lump sum in the selected month, recalculating the time-to-zero.

The calculator classifies revenue reliability based on how much revenue offsets burn during the runway period. If revenue doesn’t start early enough, or if early-month revenue covers less than about 25% of burn, it will advise you not to rely on revenue fully. If revenue covers more than ~75% of burn and stays relatively stable, the tool treats it as material for runway reduction.

This planner simplifies timing by assuming steady monthly burn and monthly revenue buckets. It doesn’t model taxes, one-time costs, financing fees, dilution, debt service, or working-capital swings—so actual cash could move faster than the projection. Also, aggressive revenue ramps may look safe on paper but can be fragile if collections slip.