Extended Warranty Value Calculator
Is that extended warranty a good statistical bet? Compare price vs. expected payout.
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About the Extended Warranty Value Calculator
Helps you weigh an extended warranty or protection plan on the numbers: given its price, coverage period, your estimated odds of needing a covered repair, and what that repair typically costs, it calculates the plan's expected value.
- Enter the warranty's cost and coverage period.
- Enter your best estimate of the probability you'll need a covered repair.
- Enter the typical cost of that repair if it happens.
- Read the expected value and break-even probability.
A $200 warranty covering a repair that typically costs $600, with a 20% estimated chance of needing it: expected payout = $120, against a $200 price, for a net expected value of −$80 — you'd need at least a 33.3% repair probability for the plan to break even.
A negative expected value doesn't automatically make a warranty a bad purchase — insurance and warranties are priced above the average payout because the seller needs a profit margin, and their real purpose is reducing the risk of a large, unpredictable loss.
- • Be honest about your probability estimate — manufacturer failure-rate data or reliability surveys are a better source than a salesperson's pitch.
- • Check what your existing coverage already includes.
- • The math favors skipping the warranty on inexpensive items you could comfortably replace out of pocket.
- Consumer Reports — Extended warranties: are they worth it? — accessed 2026-08-31
- Federal Trade Commission — Auto warranties and service contracts — accessed 2026-08-31
Illustrative estimate only, not financial or tax advice. Verify figures with a licensed adviser or your local tax authority.