Car Insurance Cost Calculator
Your policy
Your result will appear here
Fill in the fields on the left and this updates as you type.
Know what this estimate is based on
- Jurisdiction
- United States — state-regulated insurance
- Scope and limitations
- Educational estimate only. Insurance in the U.S. is regulated state by state, so rates, required coverages and available discounts differ by where you live. Your premium is set by an insurer's own underwriting — driving record, claims history, credit-based insurance score where permitted, the property itself — and only a quote is binding. What a policy pays depends on its exclusions and limits, not on this estimate.
- Source links checked
- Jul 30, 2026
Built and regression-tested by Smart Tools Lab. It has not been individually reviewed by a licensed financial, tax, or legal professional.
How to use
- 01
Enter the annual premium you actually pay, or the one you have been quoted.
- 02
Enter your collision deductible — the amount you would pay out of pocket before the insurer pays anything on a crash claim.
- 03
Read the true annual cost: the premium plus what the deductible works out to once you spread it over how often people claim.
- 04
Open Advanced options to change how often you expect to claim, and how much of your premium is collision and comprehensive rather than liability.
- 05
Compare the deductible ladder. It reprices the same policy at $250 through $2,500 so you can see whether raising yours actually saves money.
Formula
True annual cost = annual premium + (deductible / how often you claim, in years). The second term converts a lump sum you pay occasionally into the yearly figure it averages out to, so two policies with different premiums and different deductibles can be compared on one number. The deductible ladder reprices the same policy at other deductibles using the credits U.S. carriers typically give — roughly 10% moving from $500 to $1,000 and 20% moving to $2,000 — applied only to the collision and comprehensive share of the premium, because liability carries no deductible and does not move. The row matching your own deductible reproduces the premium you entered, so the comparison is anchored to your real policy rather than to an average.
Example
A $2,300 annual premium with a $500 collision deductible, claiming about once a decade. Step 1 — Spread the deductible: $500 / 10 years = $50 a year. Step 2 — True annual cost: $2,300 + $50 = $2,350, or about $196 a month. The premium alone suggested $192. Step 3 — Test the ladder. Moving to a $1,000 deductible cuts the collision portion by about 10%, taking the premium to roughly $2,197 while the averaged deductible rises to $100 — a true cost of $2,297, about $53 a year cheaper. Step 4 — Keep going and it flattens. A $2,000 deductible lands at $2,293, barely better than $1,000, because by then the extra risk is catching up with the extra discount. So the honest answer is that raising the deductible from $500 to $1,000 saves about $50 a year, and going beyond that buys almost nothing. Whether $50 is worth doubling your exposure on the day of a crash depends on one thing this calculator cannot see: whether you have $1,000 in the bank.
Definitions
- Deductible
- What you pay on a collision or comprehensive claim before the insurer pays. Applies per claim, not per year.
- True annual cost
- Premium plus the deductible spread over how often you claim. What insurance costs, rather than what it is quoted at.
- Collision & comprehensive share
- The portion of a premium that covers your own car. Only this part responds to a deductible change; liability does not.
- Premium credit
- The discount for accepting a higher deductible — typically around 10% of the collision portion moving from $500 to $1,000.
- Claim frequency
- How often a driver files. Roughly one collision claim per decade for a typical U.S. driver.
- Surcharge
- The rate increase after an at-fault claim, usually for three to five years, and often the largest cost of claiming.
- Liability
- The part of the policy that pays others. No deductible applies, which is why a deductible change never touches it.
- Glass deductible
- A separate, often lower or waived deductible for windshield claims, available in many states.
- Total loss
- When repair costs exceed a set share of the car's value. The insurer pays actual cash value less the deductible instead of repairing.
- Actual cash value
- The car's depreciated worth at the moment of loss — the ceiling on what collision and comprehensive can pay.
- Bundling
- Buying auto and home or renters from one carrier for a discount on both. Usually cheaper, worth verifying against two separate quotes.
- Re-rating
- An insurer repricing your policy at renewal. Legal in most states even with no claims, and the reason to shop annually.
Good to know
Why a premium is only part of the price
A quote tells you what you pay to be insured. It does not tell you what being insured costs, because it leaves out the deductible — money you will hand over, just not on a schedule. A $500 deductible on a policy you claim against once a decade averages out to $50 a year. That is small, and it is exactly the kind of small that decides between two policies. A cheaper premium bought with a higher deductible is not automatically cheaper, and comparing quotes on the premium alone systematically favors the policy that will cost you more. Adding the two together is not a trick; it is the only way to put two policies on one axis. What it cannot capture is the surcharge after an at-fault claim, which is usually the largest hidden cost of all.
Why the deductible only discounts part of the bill
This is where most deductible advice goes wrong. A deductible applies to collision and comprehensive — the coverage on your own car. Liability has no deductible at all, because it pays other people from the first dollar. So when a carrier gives you a credit for accepting a higher deductible, that credit applies only to the collision and comprehensive portion of the premium, which on a typical full-coverage policy is somewhere around 40% to 50% of the bill. Raising your deductible from $500 to $1,000 does not cut your premium by 10%; it cuts the collision part by roughly 10%, which is closer to 4% or 5% of what you pay. That is why the savings from a deductible change are smaller than people expect, and why the ladder on this page flattens out.
Reading the deductible ladder
The table reprices the same policy at $250 through $2,500, using the credits U.S. carriers typically give, and anchors the row matching your own deductible to the premium you entered. On a $2,300 premium with a $500 deductible, moving to $1,000 takes the premium to about $2,197 while the averaged deductible cost rises from $50 to $100 — a true cost of $2,297, roughly $53 a year better. Moving on to $2,000 lands at $2,293, which is barely different, because by then the extra risk is catching up with the extra credit. The honest conclusion is that the first step up is worth taking and the rest are noise. Going down to $250 is the clearest loser: it costs about $130 more a year to reduce a rare payment by $250.
The average is not what you pay on the day
Spreading a $500 deductible over ten years to get $50 a year is the right way to compare policies and the wrong way to plan cash. You do not pay $50 a year. You pay nothing for nine years and $500 in one afternoon, usually alongside a tow, a rental car and a week of disruption. That is why the test for raising a deductible is not whether the math favors it — over a long enough run it usually does — but whether you could write the larger check tomorrow without borrowing. A household with $8,000 in savings should probably take the $1,000 deductible. A household with $300 should not, no matter what the table says, because the alternative to paying it is a credit card at 22%.
The cheapest change is not a coverage change
Everything on this page adjusts what you buy. The largest single saving available to most drivers adjusts nothing: quoting three carriers once a year. Rates for the same driver, the same car and the same coverage routinely differ by hundreds between insurers, because each weighs your ZIP code, mileage and history differently. Most states also allow re-rating at renewal even when nothing about you has changed, so the carrier that was cheapest three years ago often is not now. Do that first, then bundle, then look at the deductible. Reducing liability limits to save money belongs nowhere on the list — it is the one cut that trades a small certain saving for an unlimited uncertain loss.
Frequently asked questions
Why add the deductible to the premium?
Because it is money you will pay for being insured, just not every year. A $500 deductible you claim on once a decade costs $50 a year on average. It is small, but it is the part the quoted premium never shows, and it is the whole reason a cheaper policy is not automatically cheaper.
Should I raise my deductible?
Only if you could write that check tomorrow without borrowing. The math usually favors the higher deductible over a long enough run — the table on this page shows by how much — but the average is not what you pay on the day. You pay the whole thing at once.
How often do people actually claim?
Industry figures put a typical driver at roughly one collision claim per decade. The default here is ten years. Someone with a long commute in a dense city should shorten it; a low-mileage driver in a quiet area can stretch it.
Why does only part of my premium change with the deductible?
Because a deductible applies to collision and comprehensive, not to liability. Liability has no deductible — it pays other people from the first dollar. So raising your deductible discounts only the portion of the bill that covers your own car, which on a typical full-coverage policy is around 40% to 50%.
Is a $250 deductible ever worth it?
Rarely. It costs meaningfully more every year to save $250 on a claim you may not make, and a claim that small is often not worth filing anyway because of the surcharge that follows. It mostly suits drivers with no savings buffer at all.
Should I file a small claim?
Often not. An at-fault claim commonly raises your premium for three to five years, and the total increase can exceed a small payout. A rough test: if the repair is less than your deductible plus about three years of the likely surcharge, pay it yourself.
Does this include everything car insurance costs?
No. It covers the premium and the deductible. It does not include the surcharge after an at-fault claim, which is usually the largest hidden cost, and it does not include what you pay when a loss falls outside your coverage entirely.
What is the fastest way to cut this number?
Quote three carriers. The same driver, same car and same coverage is priced hundreds apart, and most states let insurers re-rate you at renewal whether or not anything changed. Shopping annually moves this figure more than any coverage decision.
Does bundling really save money?
Usually, and it is worth checking rather than assuming. A bundled home or renters policy commonly cuts both premiums, but the bundled total is occasionally beaten by two separate carriers — which you only find out by quoting it both ways.
What about comprehensive claims like hail or a windshield?
They are treated more leniently than at-fault collision claims, and several states restrict surcharges for them. Many policies also carry a separate, lower glass deductible or waive it entirely. Check yours before paying for a windshield yourself.
Does a higher deductible affect my liability coverage?
No. Liability limits and deductibles are separate decisions. Raising your deductible saves money on your own car; lowering your liability limits to save money is the trade almost nobody should make.
How does this differ from the Auto Insurance Estimator?
That one estimates a premium from the car and your record when you do not have a quote. This one starts from a premium you already have and prices what being insured costs once the deductible is counted.