Car insurance calculator
Estimate your premium in 10 seconds — no email, no phone number. We start from your state's real market average and adjust for the four factors that move rates most: age, driving record, credit tier and coverage level.
Estimate your car insurance premium
Real California market rates, adjusted for you — no email required
Estimate applies published age, driving-record and credit adjustment factors to California's market average. California bars insurers from using credit history, so the credit tier is ignored here. Actual quotes also depend on your vehicle, ZIP code and carrier — which is why comparing quotes routinely saves four figures a year.
We may earn a commission if you request quotes through this link, at no cost to you. It never affects the data we publish.
What the big carriers charge
The spread between carriers is as dramatic as the spread between states — nationally, the priciest major carrier averages about 75% more than the cheapest for the same benchmark driver. This is why comparing quotes beats every other money-saving tactic combined.
| Carrier | National avg (full coverage, monthly) | vs U.S. average | |
|---|---|---|---|
| USAA — military members & families only | $147/mo | -29% vs US avg | Get quotes → |
| Erie — 12 states + D.C. only | $150/mo | -28% vs US avg | Get quotes → |
| State Farm | $160/mo | -23% vs US avg | Get quotes → |
| GEICO | $176/mo | -15% vs US avg | Get quotes → |
| Progressive | $190/mo | -9% vs US avg | Get quotes → |
| Nationwide | $196/mo | -6% vs US avg | Get quotes → |
| Farmers | $242/mo | +16% vs US avg | Get quotes → |
| Allstate | $259/mo | +25% vs US avg | Get quotes → |
National market averages compiled July 2026 from published rate analyses; your quote will differ. Quote links go to our comparison partner and may earn us a commission at no cost to you.
Where your state fits
Full-coverage averages run from $128/mo in Vermont to $335/mo in Nevada — a 2.6x gap for the same driver. See the full ranking on the car insurance by state page, or jump straight to your state's breakdown from the table there.
The single most reliable way to cut your premium is comparing quotes — the gap between the cheapest and priciest carrier for the same coverage regularly exceeds $1,000 a year.
Compare car insurance quotesWe may earn a commission if you request quotes through this link. It costs you nothing and never affects the data we publish.
Car insurance calculator FAQ
How accurate is this car insurance calculator?
It starts from your state's real market average — compiled from insurer rate filings — and applies published adjustment factors for age, driving record and credit. That makes it a solid ballpark, typically within 20–30% of real quotes. It cannot see your vehicle, ZIP code or claim history, which is why the only way to get your true price is comparing actual quotes.
What factors affect car insurance rates the most?
In rough order of impact: your state and ZIP code, your age (teen drivers pay nearly 3x a 30-year-old's rate), a DUI or at-fault accident (+50–70%), your credit tier in the states that allow it (poor credit can nearly double premiums), the vehicle itself, and your coverage level — full coverage runs about three times state-minimum liability.
Why is the national average $208 a month?
$208/month (about $2,496/year) is the U.S. market average for full coverage for a 30-year-old driver with a clean record, per July 2026 analyses of rate-filing data. Half the country pays meaningfully less — state averages run from well under $100 to over $330 a month.
How can I actually lower my premium?
Five levers work almost everywhere: compare quotes from at least three carriers (the same driver is routinely quoted $1,000+/year apart), raise your deductible, bundle auto with home or renters, ask about usage-based programs if you drive under ~10,000 miles a year, and improve your credit in states that price on it. Shopping around is the biggest one — carriers deliberately price the same risk differently.