Decision tool
Cash Flow Forecast Calculator
Project monthly inflows, outflows, and running cash balance with optional growth rates.
Your inputs
Adjust the fields and review the result in this workbench.
Cite this calculator
Results use the inputs you enter and standard formulas documented on this page. Not professional advice.
Last reviewed: August 2026
Cash Flow Forecast Calculator. (August 2026). Useful Tools Online. https://usefultoolsonline.com/cash-flow-forecast-calculator/
Interpretation
Forecast assumptions
Growth rates compound monthly on the base inflow/outflow. Use conservative outflow growth when planning reserves.
Avoid mistakes
Common mistakes
A few things that can lead to misleading results or poor decisions.
Treating one good month as the new baseline.
Ignoring seasonality in revenue.
Related tools
Keep exploring
Continue with closely related tools in the same decision path.