Insurance Coverage Comparison Tool

Compare up to three policies on expected annual cost, combining the premium with the share of a claim each one leaves you paying.

Last reviewed

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Free · No sign-up · Runs in your browser

The cheapest premium and the cheapest policy are frequently different things. A quote that saves $200 a year but carries a deductible $1,500 higher is a worse deal for anyone who claims even occasionally.

This tool combines the premium with the portion of a typical claim each policy would leave you paying, weighted by how often you expect to claim. The result is an expected annual cost that makes three offers genuinely comparable.

Your numbers

Results update as you type. Nothing is sent anywhere.

Policy A
Policy B
Policy C
Claim assumptions

0.2 means about one claim every five years.

Result

Lowest expected annual cost

Policy C

That policy’s expected cost

$1,510

Policy A expected annual cost
$1,550
Policy B expected annual cost
$1,580
Policy C expected annual cost
$1,510
Lowest premium
Policy B
Lowest premium amount
$1,180
Expected claim cost included
$200

This is an estimate based on the values you entered. Actual premiums, coverage, eligibility and pricing vary by provider and by individual circumstances.

Expected annual cost adds the premium to the share of a typical claim you would pay yourself, weighted by how often you expect to claim. It is a planning comparison, not a prediction.

A policy is more than its price. Check exclusions, claim service, endorsements and the financial strength of the carrier before switching.

Policy comparison

PolicyAnnual premiumDeductibleLimitExpected annual cost
Policy A$1,450$500$300,000$1,550
Policy B$1,180$2,000$300,000$1,580
Policy C$1,310$1,000$300,000$1,510

How to use the insurance coverage comparison tool

  1. Enter the annual premium, deductible and coverage limit for each policy you are considering.
  2. Set the size of a claim that would be typical for your situation.
  3. Set how often you expect to claim - 0.2 means roughly one claim every five years.
  4. Compare the expected annual cost column rather than the premium column.

What people use this for

  • Choosing between three quotes that differ in more than just price.
  • Testing whether a low-premium, high-deductible policy still wins if you claim more often.
  • Showing a household member why the cheapest quote is not automatically the right one.
  • Documenting a coverage decision before renewal.

Worked examples

Every figure below is produced by running this calculator against the example inputs, so the numbers always match the tool.

Cheap premium, high deductible

Policy A at $1,450 with a $500 deductible, Policy B at $1,180 with a $2,000 deductible, and Policy C at $1,310 with a $1,000 deductible, against a $6,000 typical claim expected once every five years.

Lowest expected annual cost
Policy C
That policy’s expected cost
$1,510
Lowest premium
Policy B

Frequent small claims

The same three policies, but with a $1,800 typical claim expected once a year.

Lowest expected annual cost
Policy A
Policy A expected annual cost
$1,950
Policy B expected annual cost
$2,980

How expected annual cost works

Expected annual cost is the premium plus the average amount you would pay out of pocket per year. If a typical claim costs you the full $2,000 deductible and you claim once every five years, that is $400 a year of expected out-of-pocket cost on top of the premium.

It is a planning device, not a prediction. Nobody claims 0.2 times in a year. What the number does is put two policies with different risk-sharing structures onto one comparable scale.

What the comparison deliberately leaves out

Price is the easy part. Exclusions, endorsements, claim-handling reputation, the financial strength rating of the carrier and how a policy responds to a total loss all matter and none of them are numbers you can add up.

Use this to shortlist, then read the actual policy wording for the two that survive. A slightly more expensive carrier that pays claims promptly is worth a great deal more than the difference in premium.

Methodology and assumptions

What this calculator does, and what it deliberately does not do.

  • Expected annual cost = premium + (deductible portion of a typical claim + any amount above the limit) × expected claims per year.
  • Claim frequency and claim size are your estimates. The tool does not model probability distributions or carrier claim data.
  • All figures are estimates produced from the values you enter. This site has no rate feed and no carrier data, so it cannot quote or price a policy.
  • Nothing you type is transmitted or stored - the calculation runs entirely inside your browser.

This calculator provides an estimate based on the information you enter. Actual insurance premiums, coverage, eligibility and pricing vary by provider and individual circumstances.

This website is not an insurance company, an insurance agency or a licensed broker. It does not sell insurance, does not provide insurance quotes, and is not authorised to give advice about which policy you should buy.

No result produced here is an offer of insurance or a guarantee of coverage. Only a licensed insurer or agent, working from your verified details, can quote or bind a policy.

Frequently asked questions

What claim frequency should I use?

Use your own history. If you have claimed twice in fifteen years, roughly 0.13 is realistic. Guessing high favours low-deductible policies; guessing low favours high-deductible ones.

Why does the coverage limit matter here?

If a claim exceeds the limit, the excess falls on you. For a typical claim well below the limit it makes no difference, which is exactly what the calculation will show.

Can I compare only two policies?

Yes. Leave the third premium at zero and it is excluded from the comparison.

Does a lower expected cost mean I should switch?

It means the price and risk structure look better on the numbers you entered. Read the policy wording and check the carrier before acting on it.