How to calculate car insurance quote
First you should understand the basics of how insurance companies make money: In a simple scenario, assume 1,000 have car insurance. Assume that on average, 100 people have accidents per year, and that each accident costs $10,000. So, we can expect total costs to be $1,000,000 per year. Some of those costs will be paid by the drivers, who have some sort of 'deductible'. That is - the insurance company will only cover costs after the driver has themself paid some initial amount [something like, the first $1,000 of repairs is paid by the driver]. So now the insurance company expects to have to pay out $900,000 in total claims this year. If they want to pay those claims (and also pay their administrative costs, and earn a profit), they might want to have $1,250,000 in revenue. Across 1,000 people, that would be $1,250 / year in insurance premiums. Of course, the big question for the insurance company is: how much will they really need to pay out in insurance claims each year? The better they can predict that number, the more profitable they can be [because they can charge a much more accurate amount, which can earn them new customers and gives them insurance {pun} that each new customer is actually profitable to them on average]. So the insurance company spends a lot of time and money trying to predict your likelihood of a car accident. They use a lot of metrics to do this. Some might be statistical hogwash that they charge you because they feel they can [if every insurance company charges you extra for driving a 2-door instead of a 4-door, then they all will], and some might be based in reality. So they attempt to correlate all of the items in your list, to see if any of those items indicates that you should be charged more (or less) for your insurance. This is equal parts art and science, and a lot of it comes down to how they market themselves. ie: if an insurance company gives a discount for being in college, is that because college drivers are better drivers, or is it because they want to increase the number of young customers they have, so they can keep those customers for life? Therefore how each metric factors into your calculation will be based on the company using it. It would basically be impossible to 'come up with' the same answer as the insurance company by having the information you provided, because of how heavily dependant that answer is on statistics + marketing. As for how your state matters - some states may have different accident rates, and different payout systems. For example - is Hawaii driving more dangerous because of all the tourists driving rented cars faster than they should? Is New York less expensive to insure because better public health care means less cost is borne by the insurance company in the event of an accident [I have no idea if either of these things are the case, they are purely for hypothetical discussion purposes].  In short, make sure you get quotes from multiple providers, and understand that it isn't just the cost that changes. Check changes in coverage and deductibles as well [ie: if one company charges you $100 / month when everyone else charges $200 / month - make sure that the cheaper company doesn't limit its coverage in ways that matter to you]. Does the Insurance value differ from state to state (for example I've a car in Hawaii and there is another car in Illinois with same model, make and same features), does the Insurance vary for both? Yes, quotes will vary based on where you live for various reasons, (propensity for accidents, value of cars, etc.), and state laws regarding required car insurance can vary. How is the insurance quote calculated? It's likely a proprietary formula that the insurance company will not disclose. If they did, they could be giving away a competitive advantage. However, like all insurance, the goal is to determine the probability of the insured having an accident, and the projected cost of such an accident.  That will be based on actuarial tables for each of the risk factors you mention. Former software developer at an insurance company here (not State Farm though). All of the above answers are accurate and address how the business analysts come up with factors on which to rate your quote. I wanted to chime in on the software side here; specifically, what goes into actually crunching those numbers to produce an end result. In my experience, business analysts provide the site developers with a spreadsheet of base rates and factors, which get imported into a database. When you calculate a quote, the site starts by taking your data, and finding the appropriate base rate to start with (usually based on vehicle type, quote type (personal/commercial/etc.) and garaging zip code for the US). The appropriate factors are then also pulled, and are typically either multiplicative or additive relative to the base rate. The most 'creative' operation I've seen other than add/multiply was a linear interpolation to get some kind of gradient value, usually based on the amount of coverage you selected. At this point, you could have upwards of twenty rating factors affecting your base rate: marriage status, MVR reports, SR-22; basically, anything you might've filled into your application. In the case of MVR reports specifically, we'd usually verify your input against an MVR providing service to check that you didn't omit any violations, but we wouldn't penalize for lying about it...we didn't get that creative :) Then we'd apply any fees and discounts before spitting out the final number. With all that said, these algorithms that companies apply to calculate quotes are confidential as far as I'm aware, insofar as they don't publish those steps anywhere for the public to access. The type of algorithm used could even vary based on the state you live in, or really just when the site code is arbitrarily updated to use a new rating system. Underwriters and agents might have access to company-specific rating tables, so they might have more insight at the company level.  In short, if there's an equation out there being used to calculate your rate, it's probably a huge string of multiplications with some base rate additions and linear interpolations peppered in, based on factors (and base rates) that aren't readily publicized. Your best bet is to not go through the site at all and talk to a State Farm agent about agency-specific practices if you're really curious about the numbers. Question 1: Yes Question 2: There is no simple formula. Car insurance is mostly Statistics, because you have so many millions of cases that the variance is really low. This also means that, because the cost can be estimated so precisely, it is difficult to make an offer better than the competitors. For that reason every insurance company makes there own, arbitrary, segmentation of the data which leads them identify low risk groups they can offer a bonus to. Common ones are type of car or and driving experience, but it could be anything that is not forbidden by anti-discrimination-laws. Also additional perks like towing insurance etc. may give them an opportunity do differentiate themselves or to make easy profit.  In fact it is a common tactic to offer prices that make close to no profit to fill up your book, then raise tariffs in then following years an make you profit with those who are to lazy to switch. "On top of the given answers, the type of referral will also factor in. When you're up for renewal and go to a comparison site (in the UK: CompareTheMarket, MoneySupermarket, Confused, GoCompare, ... ) and struggle accurately through all their lists of questions, you see that some of the data differs (e.g., not all the same jobs can be entered; if you have had an accident, not all ask whose fault it was and/or don't leave the option ""not yet resolved"" --possibly forcing you to guess which way it will be adjudicated,-- and/or what the total repair cost was).  So as these referrers feed slightly different data to roughly the same set of insurance providers, you will get slightly different quotes on the same providers. And expect your own provider to offer a slightly better quote than you'll get in reality for renewing: The referrer's (one-time) cut has to be still taken off, but they count it as a new client so somebody gets a bonus for that --- you they disregard as a captive client and give what boils down to a loyalty penalty. [Case in point: I had an unresolved car accident, resolved months later in my favour. With all honest data including unresolved claim and its cost and putting my 'accident-free years' factor at 0 instead of 7, my old provider quoted about 8% more than the previous year on comparison sites; but my renewal papers quoted me 290% more, upon telephone enquiry the promised to refund the difference if court found in my favour though they refused to give this in writing. So: No thanks!] Then the other set of referrals they get is from you directly going to their website asking for a quote. They know what type of link you've followed (banner, or google result, etc), they may know some info from your browser's cookies (time spent where) or other tracking service, and from your data they may guess how tech-savvy and shop-wise you are, and scale your offer accordingly. [Comparison-site shoppers are lumped together at a relatively high savvy-level, of course!]. Companies breaking down your data and their own in a particular way can find advantages and hence offer you better terms, as said in the main answer (this is like Arbitration in stock exchanges, ensuring a certain amount of sanity: if there's something to exploit, somebody will, and everybody will follow). It may be that they find a certain group of people maybe more accident-prone but cheaper to deal with (more flexible in repair-times, or easy to bully in accepting shared-fault when they weren't at fault), or they want a certain client (for women, for civil servants, for sporty drivers, for homeowners --- often for cross-selling other insurance services). Or they claim to want pensioners because the company can offer them 'a familiar voice' (same account manager always contacting them) while they're easier to bamboozle and less likely to shop around when offered a rubbish deal. Also, 100% straight comparison of competing offers isn't possible as the fine details of the T&Cs (terms & conditions) would differ, as well as various little pinpricks in the claims handling process.  And depreciation of a car, and various ways of dealing with it: You insure it for the buying prices, but two years later it's worth about 40% less on paper --- so in case of total loss, replacing like-for-like will cost you still at least 80% of the value for which you've been insuring it while they'll probably offer you the 100-40= 60%. Mostly because instead of your trusted car you have something unknown that may have hidden defects, or been mistreated and about to die. [Case in point: My 3-y-old dealer-bought car's gearbox died just outside the 6month warranty period, notwithstanding its ""150-item inspection you can rely on"". In the end the national brand agreed to refund the parts (15% of what I paid for the car) but not the labour (a few hours).] And any car model's value differs (in descending order) from its ""forecourt price"", ""private selling price"", ""part exchange price"", and ""auction price"". Depending on your ompanies may happily insure you for forecourt price (=what you paid to dealer) but then point out that the value of that car is the theoretical P/X value, i.e., the car without anybody's profit, far less than you've been paying for. [Conversely, if you crash it after insuring below market value, they can pay you your stupidly low figure.]"
There is economic value added to the marketplace, by having many investors trading stocks. The stock market itself can be thought of as a tool which provides additional 'liquidity' to the marketplace. Liquidity is the ease with which you can convert your assets into cash (for example, how quickly could you sell your car if you needed money to pay a medical bill?). Without a stock market, funds would be very illiquid - an investor would likely need to post advertisements to have other people consider buying his/her shares. Until the match between a buyer and seller is found, the person with the shares can't use the cash they need. On the other side of the transaction, are people who have an appetite for risk. This means that, for various reasons, they are willing to take on more risk than you, if it pays off on average (they are young [and have many years of salary earnings in front of them], or they are rich [can afford to lose money sometimes if it pays off on average]). Consider this like a transaction between your insurance broker - you don't want to pay for a new car if you get in an accident, and you're willing to pay total annual premiums that, on average, will cost more than that same car over time. You don't want the risk, but the insurance company does - that's how they make money. So by participating in any marketplace, you are providing value, in the form of liquidity, and by allowing the market to allocate risk to those willing to take it on. It seems like there are  a few different things going on here because there are multiple parties involved with different interests. The car loan almost surely has the car itself as collateral, so, if you stop paying, the bank can claim the car to cover their costs.  Since your car is now totaled, however, that collateral is essentially gone and your loan is probably effectively dead already.  The bank isn't going let you keep the money against a totaled car.  I suspect this is what the adjuster meant when he said you cannot keep the car because of the loan. The insurance company sounds like they're going to pay the claim, but once they pay on a totaled car, they own it.  They have some plan for how they recover partial costs from the wreck.  That may or may not allow you (or anyone else) to buy it from them.  For example, they might have some bulk sale deal with a salvage company that doesn't allow them to sell back to you, they may have liability issues with selling a wrecked car, etc.  Whatever is going on here should be separate from your loan and related to the business model of your insurance company.  If you do have an option to buy the car back, it will almost surely be viewed as a new purchase by the insurances company and your lender, as if you bought a different car in similar condition. Pretty simple: When is Cash Value Life Insurance a good or bad idea? It is never a good idea. How can life insurance possibly work as investment? It can't.  Just as car, home, or health insurance is not an investment.  Note for counter example providers:  intent to commit insurance fraud is not an investment. Why not live your life so in 15 or 20 years you are debt free, have a nice emergency fund built and have a few 100 thousand in investments?  Then you can self-insure.  If you die with a paid off home, no debt, 20K in a money market, and 550,000 in retirement accounts would your spouse and children be taken care of? Whenever you put less than 20% down, you are usually required to pay private mortgage insurance (PMI) to protect the lender in case you default on your loan.  You pay this until you reach 20% equity in your home.  Check out an amortization calculator to see how long that would take you.  Most schedules have you paying more interest at the start of your loan and less principal.  PMI gets you nothing - no interest or principal paid - it's throwing money away in a very real sense (more in this answer).  Still, if you want to do it, make sure to add PMI to the cost per month. It is also possible to get two mortgages, one for your 20% down payment and one for the 80%, and avoid PMI.  Lenders are fairly cautious about doing that right now given the housing crash, but you may be able to find one who will let you do the two mortgages.  This will raise your monthly payment in its own way, of course. Also remember to factor in the costs of home ownership into your calculations.  Check the county or city website to figure out the property tax on that home, divide by twelve, and add that number to your payment.  Estimate your homeowners insurance (of course you get to drop renters insurance, so make sure to calculate that on the renting side of the costs) and divide the yearly cost by 12 and add that in.  Most importantly, add 1-2% of the value of the house yearly for maintenance and repair costs to your budget.  All those costs are going to eat away at your 3-400 a little bit.  So you've got to save about $70 a month towards repairs, etc. for the case of every 10-50 years when you need a new roof and so on. Many experts suggest having the maintenance money in savings on top of your emergency fund from day one of ownership in case your water heater suddenly dies or your roof starts leaking.  Make sure you've also estimated closing costs on this house, or that the seller will pay your costs.  Otherwise you loose part of that from your down payment or other savings. Once you add up all those numbers you can figure out if buying is a good proposition.  With the plan to stay put for five years, it sounds like it truly might be.  I'm not arguing against it, just laying out all the factors for you. The NYT Rent Versus Buy calculator lays out most of these items in terms of renting or buying, and might help you make that decision. EDIT: As Tim noted in the comments below, real monthly cost should take into account deductions from mortgage interest and property tax paid.  This calculator can help you figure that out.  This question will be one to watch for answers on how to calculate cost and return on home buying, with the answer by mbhunter being an important qualification "As others have pointed out, it's all about a fixed, small cost versus the potential of a large cost. If you have insurance, you know you will pay a fixed amount per month. There is a 100% probability that you will have to pay this premium. If you don't have insurance, there is a large chance that you will have no cost in any given month, and a small chance that you will have a large cost. Like my home-owners insurance costs me about $50 per month. If I didn't have insurance and my house burned down, I would be out something like $100,000. What's the chance that my house will burn down this month? Very small. But I'd rather pay $50 and not have to worry about it. On the other hand, I just bought a filing cabinet for $160 and the store offered me an ""extended warranty"" for something like $20 a year. What's the probability that some accident will happen that damages my filing cabinet? Pretty small. Even if it did, I think I could handle shelling out $160. I can imagine my stomach in knots and lying awake at nights worrying about the possibility of losing $100,000 or finding myself homeless. I can't imagine lying awake at nights worrying about losing $160 or being force to stuff my files under the bed. I'll take my chances. When I was young and had even less money than I have now, I bought cars that cost me a thousand dollars or. Even poor as I was, I knew that if the car was totaled I could dig up the cash to buy another. It wasn't worth paying the insurance premium. These days I'm driving a car that cost me $6,000. I have collision and comprehensive insurance, but I think it's debatable. I bought the car with cash to begin with, and if I had to I could scrape up the cash to replace it. Especially considering that my last payment for my daughter's college tuition is due next month and then that expense is gone. :-)" Credit scores, or at least components of them, can sometimes factor into how much you pay for car insurance. Source: Consumer Reports: How a Credit Score Increases your Premium What Jaydles said. I think of each strategy in terms of Capital at Risk (CaR). It's a good thing to know when considering any position. And then conveniently, the return is always profit / CaR. With covered calls it's pretty easy. Pay $1000 for stock, receive $80 in premium, net CaR is $920.  If you own the stock and write calls many times (that expire worthless, or you that you buy back), there are two measurements to consider. First, treat every covered call as a buy-write. Even if you already own the stock, disregard the real cost basis, and calculate from the moment you write the call, using the stock price at that time. The second measure is more complicated, but involves using something like the XIRR function in a spreadsheet. This tracks the series as a whole, even accounting for times where there is no written call outstanding. For the written put, even though your broker may only require 30% collateral in a margin account, mentally treat them as cash-secured. Strike less premium is your true CaR. If the stock goes to zero by expiration, that's what you're on the hook for. You could just compute based on the 30% collateral required, but in my view that confuses cash/collateral needs with true risk. Note: a written put is exactly identical to a covered call at the same strike. If you tend to favor puts over CCs, ask yourself why. Just like a loaded gun, leverage isn't inherently bad, but you sure want to know when you're using it. I would like to know how they calculated such monthly payment The formula is:  Your values would come out to be: r = (1+3.06/(100*365))^31-1=0.002602 (converting your annual percentage to a monthly rate equivalent of daily compounded interest) PV = 12865.57 n = 48 Inserting your values into the formula: P = [r*(PV)]/[1-(1+r)^(-n)] P = [0.002602*(12865.57)]/[1-(1.002602)^(-48)] P = 285.47