What this calculator does
It sums an escalating annual cost series. With rate g, the total is C₁[(1+g)ⁿ−1] ÷ g; when escalation is zero it is C₁ × n.
When to use it
Use it for rough long-range maintenance budget scenarios or as a transparent input to a separate discounted life-cycle analysis.
Inputs and formula
First-year cost, nominal annual escalation, and analysis years are required. Enter a zero escalation rate for a flat-cost scenario.
Worked example and interpretation
$60,000 in year one, 3% annual escalation, and ten years produces the accumulated nominal maintenance spend shown above.
Practical notes and limitations
This is not net present value and excludes major overhaul, disposal, availability loss, and capital renewal unless they are intentionally included in first-year cost.