Car Insurance Premium Calculator

How car insurance premiums are calculated

• Driver age: teen drivers (16–19) pay the most — 2.5–3× adult rates — due to statistically higher accident rates. Young adults (20–25) still pay a significant surcharge. Rates stabilize in the 26–65 age range and rise again after 70.
• Driving record: a single at-fault accident or moving violation typically raises your premium 20–40% at renewal. Two or more violations can double your rate or result in non-renewal. Most surcharges last 3–5 years from the date of the incident.
• Coverage type: liability-only coverage (required by law) pays for damage you cause to others. Full coverage adds collision (your car in any accident) and comprehensive (theft, weather, fire). Full coverage is essential if your car is financed or leased.
• Vehicle value: comprehensive and collision premiums scale with vehicle value. An expensive vehicle costs more to repair or replace. Many advisors recommend dropping collision and comprehensive on vehicles worth less than 10× the annual cost of that coverage.
• Annual mileage: high-mileage drivers (20,000+ miles/year) pay 5–15% more than average-mileage drivers. Low-mileage discounts (under 7,500 miles/year) are available from most carriers.

Worked example

An adult driver (30–65) with a clean record, full coverage on a $25,000 vehicle, driving 12,000 miles/year. Estimated annual premium: $1,200–$1,800. Monthly: $100–$150.

Same driver with one violation: $1,500–$2,200/year. With two or more violations: $2,400–$3,600/year.

Teen driver with full coverage on the same vehicle: $3,500–$5,000/year. Liability only: $2,000–$3,000/year.

How to lower your car insurance premium

The most effective strategies for reducing your auto insurance cost:

• Shop annually: rates can vary 40–60% for the same driver and vehicle across major carriers. Get at least three quotes at every renewal.
• Bundle home and auto: most major carriers offer 10–15% multi-policy discounts when you combine home and auto insurance.
• Raise your deductible: increasing from $500 to $1,000 typically saves 10–15% on collision and comprehensive. Set the deductible at what you can afford to pay out of pocket.
• Telematics / usage-based programs: safe-driving apps like Progressive Snapshot, State Farm Drive Safe & Save, or Allstate Drivewise can save 5–30% for low-risk driving behavior.
• Maintain continuous coverage: a lapse in coverage — even a few days — can raise your rate 10–20% as a "high-risk" classification at your next renewal.

Frequently asked questions

What is the minimum car insurance required by law?

Most states require liability insurance: bodily injury liability (pays for injuries to others when you are at fault) and property damage liability. Minimum limits vary by state — typically $25,000/$50,000 bodily injury and $25,000 property damage (written as 25/50/25). These minimums are often insufficient to cover a serious accident; most advisors recommend 100/300/100 or higher.

Should I get full coverage on an older car?

A common rule: if your annual collision + comprehensive premium exceeds 10% of the car's current market value, it may not be cost-effective. For a $6,000 car, if collision and comprehensive cost more than $600/year, dropping those coverages and self-insuring may make financial sense — provided you can absorb the loss if the car is totaled.

How long does a violation stay on my insurance record?

Most violations (speeding, running a red light, at-fault accidents) affect your insurance rate for 3–5 years from the date of the incident. DUI/DWI offenses typically affect rates for 5–10 years and may require an SR-22 filing. Major violations can result in non-renewal or require placement in a high-risk market.

What is uninsured motorist coverage and do I need it?

Uninsured motorist (UM) coverage pays for your injuries and property damage if you are hit by a driver who has no insurance or insufficient insurance. About 13% of drivers nationally are uninsured. UM coverage is required in about half of US states and strongly recommended everywhere. It is typically inexpensive ($20–$50/year) relative to the protection it provides.

Estimates last reviewed October 25, 2026. Results are estimates for educational use; not insurance advice. Methodology →