Car Insurance Deductible Calculator
Compare premium savings with the extra loss exposure created by a higher deductible.
Verify this calculatorMaintained
See what the result uses—and what it cannot know.
Sumvoro calculates deterministically from the visible inputs. It does not invent lender terms, local rules, market values, medical facts, or professional judgments.
- 1 · InputsCheck every entered value against the latest statement, quote, measurement, or official source.
- 2 · Formula
Expected annual cost = premium + claim probability × deductible. - 3 · SensitivityUse Insights to run a lower and higher case. If the conclusion changes easily, collect better information or leave more margin.
- 4 · ScopeThis tool is maintained and covered by automated calculation tests. Provider timing, rounding, and omitted facts can still change a real-world result.
- Formula release
- 2026.10-r4
- Release date
- October 10, 2026
- Review status
- Maintained
- Source review
- September 12, 2026
Optional readingLearn how this calculator works
How the car insurance deductible calculator works
Compare lower and higher deductible plans using premium savings and expected claims.
Expected annual cost = premium + claim probability × deductible.
Read our calculation methodology and limitations.
Example
Start with the complete example scenario, then replace each value with figures from the contract, quote, vehicle, or ownership plan you are evaluating.
What affects the result
- Multiple claims change expected cost.
- Coverage limits must be comparable.
- Keep the chosen deductible available in cash.
Frequently asked questions
Where should the numbers come from?
Use current contracts, lender or lessor payoff quotes, insurance proposals, official fee schedules, and supported vehicle values whenever available.
Is this a dealer or insurer quote?
No. It is an independent planning estimate based only on the values you enter.