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Free tools and plain-English answers for drivers — alongside the latest auto insurance news below.

Your state’s requirements Minimum limits, fault rules and penalties How much coverage do I need? Limits and options for what you own Compare insurers Ratings, size and contacts side by side Compare quotes Spot the coverage behind a cheap price

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State car insurance requirements lookup Minimum car insurance, fault rules, PIP and uninsured motorist requirements and the regulator's hotline for any state, or two states side by side. How much car insurance do I need? A starting point for your limits and options, from liability to gap and rental, built from common rules of thumb and your state's minimums. Compare auto insurers side by side Pick up to three of the 100 largest U.S. auto insurers to compare their size, financial strength, customer ratings, contacts and programs. Car insurance quote comparison worksheet Line up quotes from several insurers, annualize the prices and flag where coverage differs, so you compare like with like before you switch. Deductible break-even calculator Compare two deductibles: what the higher one saves each year, what it costs when you claim, and how many claim-free years it takes to break even. Should I drop full coverage? calculator Weigh what collision and comprehensive cost each year against the most they could ever pay on an older car, using the 10% rule of thumb. Should I file a claim? calculator Compare what an insurance claim would pay with what a possible premium increase could cost over the following years, using your own numbers. After-accident checklist and information form A step-by-step checklist for the scene of a car accident and a form for the details to exchange, which you can print or keep on your phone. Total loss payout estimator Estimate a total-loss settlement, what goes to your lender, and whether you would still owe money on a totaled car. Gap insurance calculator Chart your loan balance against the car's falling value to see how long you would owe more than it is worth — the window gap insurance covers. Liability limits decoder Type limits like 50/100/25 to see what each number means and test them against a crash you cause — including how much would be left for you to pay. Renewal rate increase checker See how much your car insurance renewal went up per year and per month, separate your own changes from a rate increase, and get a list of next steps. Pay in full vs monthly calculator Turn the extra cost of paying car insurance monthly — higher totals and installment fees — into an equivalent interest rate you can judge. Pay-per-mile break-even calculator Find the monthly mileage at which a pay-per-mile policy costs the same as a traditional one, using the base rate and per-mile rate from real quotes.

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The largest auto insurers

State Farm The largest U.S. auto insurer, a policyholder-owned mutual sold through more than 19,000 captive agent offices, paying a $5 billion auto dividend in 2026. 18.61% · A+ (Superior) Progressive Ohio-based public insurer that sells online, by phone and through independent agents; known for Snapshot, Name Your Price and comparison quotes. 18.57% · A+ (Superior) GEICO Berkshire Hathaway's direct-to-consumer auto insurer, sold online, by phone and in its app in every state, with low expenses and an A++ AM Best rating. 11.55% · A++ (Superior) Allstate Publicly traded "Good Hands" insurer sold by exclusive agents, online and by phone, and owner of National General; offers Drivewise and pay-per-mile Milewise. 10.14% · A+ (Superior) USAA Military-only insurer and bank for service members, veterans and their families; top J.D. Power scores, an A++ rating and SafePilot telematics. 6.18% · A++ (Superior) Farmers Insurance Policyholder-owned reciprocal exchanges managed by Zurich-owned Farmers Group, sold through exclusive agents; also Bristol West, Foremost and 21st Century. 3.56% · A (Excellent) Liberty Mutual Boston-based mutual holding company selling auto direct, through its own agents and through independent agents; it retired the Safeco brand in April 2026. 2.80% · A (Excellent) Travelers Hartford-rooted public insurer that wrote the first U.S. auto policy in 1897 and sells car insurance mainly through independent agents. 1.93% · A++ (Superior)

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100/300/100 vs 250/500/100: what the extra limits buy How 250/500/100 compares with 100/300/100 on injury claims, multiple victims, property damage, price and umbrella rules, and how to decide for yourself. Nov 6, 2026 Accident in another state: whose insurance laws apply to your claim Your policy, the crash state and a court's choice-of-law rules each govern a different part of an out-of-state claim. Here is how the layers divide. Nov 6, 2026 How much one at-fault accident raises your rate in different states Quote studies put one at-fault accident anywhere from about 17% to 71% by state. What the samples assume, which states cap surcharges, and why averages mislead. Nov 6, 2026

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Term of the day

Nuclear verdict A jury award far larger than the proven economic losses would suggest, most often defined as one over $10 million.

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