Extended Warranty Worth Calculator
Compare extended warranty price to expected repair cost using repair probability, average repair cost, and a failure-year bias.
Enter Your Values
Using shared profile · 3,500/mo · EUR — edit on Dashboard
Results update automatically as you change values.
What-If Scenarios
Results update instantlyCost Breakdown
Warranty vs Benefit
Click chart to expand
Side-by-Side Comparison
Bars show relative size · ✓ marks the better option- Expected benefit
- €54
- Cost
- €200
- Net
- -€146
- Expected benefit
- €0
- Cost
- €0
- Net
- €0
| Factor | Buy warranty | Recommended Self-insure |
|---|---|---|
| Expected benefit | €54 | €0 |
| Cost | €200 | €0 |
| Net | -€146 | €0 |
Expected net −€146 — usually skip unless cash-flow risk is high.
Scenario Analysis
How the outcome shifts if your assumptions turn out better or worse than expected.
Optimistic assumptions
At stated inputs
Pessimistic assumptions
Compare Scenarios
Pin up to 3 and see them side by sideSet your inputs, then Pin current to save this scenario. Pin a few variations to compare their scores and outcomes here.
What Moves the Needle Most
How much each factor changes your Expected Net Value across its full range. Warranty Price has the biggest impact.
Focus your attention on Warranty Price — getting it right matters most. Factors lower down move the result less, so rough estimates there are fine.
Confidence & Assumptions
The outcome shifts meaningfully with your assumptions. Sensible, but revisit the key inputs.
Expected Net Value: -€175 (worst) → -€146 (expected) → -€124 (best)
These are the estimates the result depends on. Adjust them (and the Advanced inputs) to match your real situation — the closer they are to reality, the more reliable your decision.
These estimates are for informational purposes only and do not constitute financial advice. Actual results may vary based on factors not captured in this calculator.
How This Calculator Works
What this calculator does
Estimate the expected net value of an extended warranty versus self-insuring repairs over the covered years.
How the calculation works
Effective failure probability = base repair % × failure-year bias (capped at 100%). Expected repair benefit minus warranty price is the net.
Formula
Net = min(Repair% × Bias, 100%) × Avg Repair − Warranty Price
Example
12% × 1.0 bias on a €450 repair is €54 expected benefit vs a €200 warranty → negative EV of about €146.
How to Use This Calculator
- 1Enter your numbers
Fill in the inputs for Extended Warranty Worth Calculator. Defaults are realistic starting points — replace them with your actual figures.
- 2Understand the calculation
Effective failure probability = base repair % × failure-year bias (capped at 100%). Expected repair benefit minus warranty price is the net.
- 3Review results and scenarios
Check metrics, cost breakdown, comparison tables, and best / expected / worst scenarios. Use sliders to stress-test assumptions.
- 4Decide with the verdict
Read the decision engine recommendation and FAQ. Example: 12% × 1.0 bias on a €450 repair is €54 expected benefit vs a €200 warranty → negative EV of about €146.
Factors to Consider
- Manufacturer warranty overlap
- Credit-card extended protection
- Deductibles and service fees on claims
- Product reliability for your brand
Common Mistakes
- Buying at checkout without checking free cover
- Using fear instead of a repair probability
- Ignoring that most warranties are priced above EV
Frequently Asked Questions
What is failure-year bias?+
A multiplier if you believe failures are more (or less) likely during the paid warranty window than the base rate implies.
When is a warranty rational?+
When repair odds × cost exceed the price, or when a single repair would create cash-flow stress you will not accept.
This calculator provides estimates for informational purposes only and does not constitute financial, investment, tax, or legal advice. Always consult a qualified professional before making important financial decisions.
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