Calculation & Conversion / Calculators
Car Insurance Comparison Calculator
This car insurance comparison calculator prices several coverage structures against your own profile — state, vehicle year, annual mileage, driving record, and the deductible you can actually afford — and shows what each one costs per year and per month. It also lays out the deductible trade-off as a break-even: how many claim-free years it takes before a higher deductible pays for the extra risk you're carrying. Everything runs locally in your browser, and the pricing method and its sources are printed on the page so you can check the math.
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Your profile
Estimated annual savings
Add your current premium
Enter what you pay today and we'll show the gap against the plan we recommend for your profile.
Recommended plan
Standard full coverage — $1,000 deductible
$2,761
per year
$230.07
per month
$1,000
your deductible
With a 6-year-old vehicle the car itself is a significant asset, so collision and comprehensive coverage is worth carrying. The $1000 deductible brings the premium to about $2,761/year, breaking even after 1.5 claim-free years.
Plan comparison
Every plan below is priced with the same inputs, so the differences are coverage and deductible — nothing else.
| Plan | Annual | Monthly | Liability limits | Your car | UM/UIM | Rental |
|---|---|---|---|---|---|---|
| State minimum (liability only) | $915 | $76.25 | State-required minimum | Not covered | — | — |
| Standard full coverage — $500 deductible | $3,102 | $258.50 | 100/300/50 | Collision + comprehensive | — | — |
| Standard full coverage — $1,000 deductible Recommended | $2,761 | $230.07 | 100/300/50 | Collision + comprehensive | — | — |
| Standard full coverage — $2,000 deductible | $2,420 | $201.63 | 100/300/50 | Collision + comprehensive | — | — |
| Enhanced full coverage — $1,000 deductible | $3,175 | $264.57 | 250/500/100 | Collision + comprehensive | Included | Included |
- State minimum (liability only) — Pays for damage and injuries you cause to others. Your own car is not covered — you pay for its repair or replacement out of pocket.
- Standard · $500 deductible — Highest premium, lowest out-of-pocket. The default most drivers start from.
- Standard · $1,000 deductible — Same liability limits and the same collision/comprehensive protection — you simply take on the first $1,000 of any claim.
- Standard · $2,000 deductible — Lowest standard premium, highest out-of-pocket if you file a claim. Best suited to a solid emergency fund and an older car.
- Enhanced · $1,000 deductible — Higher liability limits plus uninsured/underinsured motorist coverage and rental reimbursement — the layer that protects you when the other driver has no insurance.
What the deductible actually buys you
The same standard plan at every deductible level. Break-even = the extra out-of-pocket divided by the extra annual saving: how many claim-free years it takes to come out ahead.
| Deductible | Annual premium | Saves vs $500 | Extra out-of-pocket | Break-even |
|---|---|---|---|---|
| $500 | $3,102 | $0 | $0 | — |
| $1,000 | $2,761 | $341 | $500 | 1.5 years |
| $1,500 | $2,575 | $527 | $1,000 | 1.9 years |
| $2,000 | $2,420 | $682 | $1,500 | 2.2 years |
| $2,500 | $2,358 | $744 | $2,000 | 2.7 years |
Rows dimmed are above the deductible you said you could afford. Notice how the savings flatten out past $2,000 while your out-of-pocket exposure keeps climbing — that's the point where a higher deductible stops being a trade and starts being a bet.
How California compares
Full coverage averages $3,102 a year in California — that's +27.8% against the $2,427 average of the 50 states and DC in our rate table. Minimum coverage there averages $915.
Cheapest states
- Idaho$1,443
- Vermont$1,491
- Maine$1,631
- Hawaii$1,650
- New Hampshire$1,655
Most expensive states
- New York$4,031
- Louisiana$3,953
- Florida$3,874
- Nevada$3,566
- Colorado$3,233
How we estimate — and what this is not
annual premium = state base rate × driving record factor × mileage factor × deductible factor × vehicle age factor
- State base rate
- $3,102 / yr
- Driving record factor
- ×1.00
- Mileage factor
- ×1.000
- Vehicle age factor
- ×1.00
This is an estimate, not a quote. It shows how coverage choices and a handful of rating factors move the price — it cannot see your ZIP code, credit-based insurance score, exact vehicle trim, or carrier. Real quotes for the same driver profile commonly differ by several hundred dollars depending on the insurer. Use this to understand the trade-offs, then get at least three real quotes before you buy. Rates change; the table behind this tool reflects published 2025 averages.
This space is reserved for a sponsor. Every tool on this site stays free and runs locally in your browser.
How to use
- 1
Enter your profile
Pick your state and vehicle year, and enter your annual mileage.
- 2
Add your driving record
Choose clean record, one speeding ticket, one at-fault accident, or a DUI.
- 3
Set your deductible comfort level
Choose the largest deductible you could genuinely pay out of pocket after a crash.
- 4
Compare the plans
Read the annual and monthly cost of each coverage structure, plus what each one does and does not cover.
- 5
Check the break-even, then add your current premium
See how many claim-free years each deductible step needs to pay off, then enter what you pay today to see the gap against the recommended plan.
Key facts
- Average costFull coverage car insurance averages $2,671 per year in the US and minimum coverage $806, but state averages range from $1,443 in Idaho to $4,031 in New York for an identical driver profile — a 2.8x spread.Source:Bankrate, 2025 car insurance cost analysis (40-year-old driver, clean record, good credit)
- FormulaRaising a $500 deductible to $1,000 cuts the average full coverage premium by about 11%; going on to $2,500 saves only about 24% in total, while the out-of-pocket exposure grows fivefold.Source:Insure.com, 2025 car insurance deductible analysis
How this calculator works
Each coverage structure is priced against the profile you enter — state, vehicle year, annual mileage, driving record and the deductible you choose — using the rating factors carriers price on, and the result is reported per year and per month. The deductible comparison is expressed as a break-even in claim-free years: the premium saved each year is accumulated until it covers the extra out-of-pocket exposure that the higher deductible creates.
Two limits matter. A model built on published state-average premiums cannot reproduce an individual quote, because carriers also price credit-based insurance scores, prior claims and vehicle-specific repair costs, none of which are inputs here. And states differ in what they permit: several restrict or prohibit the use of credit history and other factors, so the same profile legitimately prices differently on either side of a state line. Read the output as a comparison between structures, not as a quote.
Disclaimer
This is an educational calculator, not financial advice. The result is an arithmetic projection of the figures you enter: it does not know your full circumstances, the terms of a specific offer, or the tax and regulatory rules that apply where you live. Confirm any figure against the terms of the product itself, or with a licensed professional, before acting on it.
Last reviewed:
Frequently asked questions
What is the difference between full coverage and minimum coverage?
Minimum coverage is liability only: it pays for injuries and property damage you cause to others, and nothing at all for your own car. Full coverage adds collision (your car in a crash you caused) and comprehensive (theft, hail, fire, animal strikes, vandalism). Nationally, that difference is large — full coverage averages around $2,671 a year against about $806 for minimum coverage. The gap is the price of protecting your own vehicle.
Does a higher deductible always lower my premium?
It lowers the premium, but with sharply diminishing returns. Going from a $500 to a $1,000 deductible cuts the average full coverage premium by about 11%, while pushing all the way to $2,500 adds only around 13 more percentage points of savings — and triples your out-of-pocket exposure. The calculator shows a break-even for each step: the extra deductible divided by the extra annual saving. If a step takes more than roughly three claim-free years to pay off, the risk you're taking on is usually not worth the discount.
How much does my driving record affect my rate?
Substantially, and more so on cheaper policies. Compared with a clean record, a single speeding ticket raises full coverage by about 21% and minimum coverage by about 32%. An at-fault accident runs roughly 37% and 58%, and a DUI about 47% and 83%. Most violations stay on your record for three to five years, though a DUI can affect rates for up to ten.
Why is my state's average so different from what I pay?
State averages hide enormous variation inside each state. Published full coverage averages range from about $1,443 in Idaho to $4,031 in New York for an identical driver profile — a 2.8x spread driven by state insurance law, no-fault rules, litigation rates, weather risk, repair costs, and how many uninsured drivers are on the road. On top of that, the same driver can be quoted several hundred dollars apart by different carriers depending on ZIP code and credit-based insurance score.
Is this a real quote, and is my data stored?
It is an estimate, not a quote, and nothing you type leaves your device. The tool applies published rating factors to published state averages to show how coverage choices move the price; it cannot see your ZIP code, credit-based insurance score, or exact vehicle trim. Treat the output as a way to understand the trade-offs, then collect at least three real quotes before buying a policy.
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This space is reserved for a sponsor. Every tool on this site stays free and runs locally in your browser.