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RCM ROI and risk calculator

Expected annual loss, avoided loss, payback and NPV from your inputs. Free to use in the browser. Not a guarantee of savings.

Estimates from your inputs. Not a guarantee of savings. This calculator runs in your browser. Numbers are not sent anywhere unless you later request an emailed copy. It is not financial, insurance, or legal advice. Reduction factors are assumptions you supply.

Downtime economics

Contribution margin per unit ($)

Units per hour

Unrecoverable share of lost output (%)

Idle crew (people)

Labor rate ($/h)

Overtime / recovery premium per event ($)

Or override: downtime cost already agreed ($/h)If this is filled in, it is used instead of the ingredients above. The built-in example uses 1,500.

How to build $/hour →

Program cost and assumptions

One-time program cost ($)

Annual operating cost ($)

Discount / hurdle rate i (%). Default 10 — use your plant’s rate.

Analysis period N (years)

Success probability p (%), used to risk-adjust NPV. Assumption.

Reduction factors (assumptions, not promises)

Example starting values: frequency 10 / 25 / 40 percent, severity 10 / 20 / 40 percent. Change them.

Frequency reduction r_f low (%)

r_f base (%)

r_f high (%)

Severity reduction r_s low (%)

r_s base (%)

r_s high (%)

Failure modes (up to 20)

For each mode: event count n, observation years T, downtime hours per event, and fixed $ per event. A 90 percent Poisson interval is shown on λ = n/T.

Failure mode inputs
Name	n	Years T	Hours down	Fixed $

Or paste CSV (name, n, years, hours, fixed $)

Formulas and limitations are written in full on the method page. For a facilitated memo, see the business case service.

Downtime economics

Program cost and assumptions

Reduction factors (assumptions, not promises)

Failure modes (up to 20)

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