Energy and life-cycle costs
Repair vs. Replace Life-Cycle Cost Calculator
Compare discounted ownership costs for repairing or replacing equipment. Enter your own assumptions and local rates.
Calculate your result
What this calculator estimates
Compare discounted ownership costs for repairing or replacing equipment. It combines the inputs below to produce Lower equivalent annual cost. Every assumption remains editable so the estimate can reflect the property, financing and location being evaluated.
Worked example
Using the displayed sample assumptions, the calculator produces $5,794. This is an illustration, not a market quote. Change one input at a time to understand what drives the result.
Inputs and assumptions
- Repair cost now — sample input: 8000 currency units
- Annual operating and maintenance after repair — sample input: 6000 currency units
- Remaining life after repair — sample input: 5 years
- Replacement cost now — sample input: 30000 currency units
- Annual operating and maintenance after replacement — sample input: 2500 currency units
- Replacement life — sample input: 15 years
- Discount rate — sample input: 7 %
How to interpret the result
Use discounted life-cycle costs and realistic equipment lives. Compare a conservative case with an expected case and keep a record of the assumptions used.
Common mistake to avoid
Do not evaluate an upgrade from simple payback alone. Local definitions, taxes, lending practices and measurement requirements can materially change the result.
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Reviewed 2026-09-08.