How to use this calculator
- Enter the current measured baseline and its unit.
- Add the planning assumptions for the selected scenario.
- Select Calculate or edit an input and calculate again.
- Review the main result together with every supporting metric.
Forecast the total cost of your disaster recovery program over a chosen period using the current monthly run rate, a compounded monthly change, and planned one-time spending. The estimate separates the ending run rate, cost added by growth, and average monthly outlay so finance and engineering teams can compare a realistic budget with a flat-cost baseline.
When the monthly rate is 0%, recurring total equals current cost × months.
Use the main result as a planning estimate and interpret it with the supporting outputs. The result depends entirely on the scope, period, units, and assumptions entered.
Planning estimate only. Confirm vendor pricing, contract terms, architecture limits, and internal cost allocation before committing resources.
With $25,000 per month, 3% monthly growth, 12 months, and $40,000 one-time spending, recurring cost is $354,801.50 and the total forecast is $394,801.50.
Yes. Each projected month applies the entered rate to the prior month.
Yes. Enter a negative monthly rate greater than -100%.
No. It is added to the total forecast but not to the ending recurring rate.
The calculator multiplies the current monthly cost by the number of months.
Only if those amounts are already included in the cost inputs; all values are treated as one currency.
| Variable | Meaning | Unit |
|---|---|---|
| Current cost | First forecast month baseline | USD/month |
| Monthly change | Compounded cost movement | % |
| One-time cost | Added once, not compounded | USD |