Tool · Investor Sam Bigpurchase

Repair vs Replace Calculator

July 1, 2026 • By the Investor Sam Editorial Team • Reviewed by Berly Sam Varghese, Editor
The sunk cost of what you already own tempts you to keep repairing it. The right question is forward-looking: which option costs less per year of service from here? This tool answers exactly that.

Example: Repair cost now: 1200 $ · Years of life after repair: 3 yrs · Replacement cost: 6000 $ · New item lifespan: 12 yrs · Upkeep/yr (current): 400 $ · Upkeep/yr (new): 150 $ · Minor repairs/mo (current): 40 $

Verdict (1=repair, 0=replace)0
Repair path: cost/year$1,280
Replace path: cost/year$650
Repair path total cost$3,840
Replace path total cost$7,800

Worked example

A $1,200 repair buying 3 more years, plus $400/year upkeep and $40/month in small fixes, runs about $1,020 per year of service. A $6,000 replacement lasting 12 years at $150/year upkeep runs about $650 per year. Replacing is cheaper per year here — the old machine is nickel-and-diming you.

Frequently asked questions

Should I factor in what I already spent?

No. Money already spent is gone whether you repair or replace, so it should not sway the decision. Compare only the future cost of each path — that is what this tool does.

What if the repair estimate is uncertain?

Use the higher end of the estimate. Repairs on old machines often uncover additional problems, so budgeting conservatively protects you from the classic trap of a "quick fix" that snowballs.

How do I value reliability and downtime?

A newer item that rarely fails has value beyond dollars — no missed work, no scramble for a rental. If downtime is costly for you, nudge the current-item upkeep higher to reflect the disruption.

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Sources

Berly Sam Varghese · Editor, Investor Sam

Berly Sam Varghese is an engineer who treats money the way he treats any hard problem — something to be engineered, not gambled on. He funded years of education and built real financial stability the patient way, by living below his means and investing rather than borrowing. He writes for the person weighing a big purchase and the trade-offs behind it. He reviews and approves every article on Investor Sam and checks the figures against primary sources before anything is published. More about our standards.