Calculator inputs
Example policy data table
| ID | Policy | Tier | Base Monthly | Deductible | Liability | Included Add-ons | Notes |
|---|---|---|---|---|---|---|---|
| P1 | CitySaver Liability | Basic | $18.00 | $1,500 | $50,000 | Roadside Assistance | Lower cost focus for lighter coverage needs. |
| P2 | Balanced Shield | Standard | $26.00 | $1,000 | $100,000 | Roadside Assistance, Rental Reimbursement | Solid midpoint for daily commuting and families. |
| P3 | HighLimit Protector | Standard Plus | $32.00 | $1,000 | $250,000 | Roadside Assistance, Glass Coverage | Higher liability with practical add-ons included. |
| P4 | Comprehensive Comfort | Premium | $41.00 | $500 | $250,000 | Roadside Assistance, Rental Reimbursement, Glass Coverage | Broader protection with lower out-of-pocket deductible. |
| P5 | Elite Total Cover | Elite | $52.00 | $500 | $500,000 | Roadside Assistance, Rental Reimbursement, Glass Coverage, Accident Forgiveness, New Car Replacement | Maximum protection for high-value cars and higher risk exposure. |
| P6 | ValueFlex Plus | Value | $24.00 | $1,500 | $100,000 | None | Customizable option for budget-focused drivers. |
Formula used
How to use this calculator
- Enter your driver and vehicle details in the form.
- Select a coverage goal, deductible, and liability limit.
- Choose any add-ons you want included in the comparison.
- Set a monthly budget to improve ranking accuracy.
- Submit to see the best matching policies above.
- Download results as CSV or PDF for your records.
What the risk index captures
The risk index multiplies seven drivers: age, experience, mileage, claims, violations, vehicle type, and area risk. A value near 1.00 represents average exposure, while 1.25 indicates roughly 25% higher pricing pressure. In this calculator, drivers under 25 add a 1.25 factor, two claims can raise the index to 1.25, and “High” area risk adds 1.15.
Coverage and deductible trade-offs
Premiums are then scaled by coverage goal, deductible preference, liability limit, and vehicle value. Selecting “Maximum” coverage applies 1.12, while “Minimum” uses 0.95. A $500 deductible uses 1.12 versus 0.90 at $1,500. Liability moves from 0.92 at $50,000 to 1.16 at $500,000, reflecting higher protection.
Budget fit and ranking weights
Policies are ranked with a 0–100 fit score: Budget 40 points, Coverage Match 25, Deductible Match 15, and Add-on Match 20. The budget component uses exponential decay, so being 10% away from your budget scores far better than being 60% away. This is why a slightly higher premium can still rank well if coverage and add-ons align.
How sample policies are compared
The dataset includes six sample policies with base monthly premiums from $18 to $52, deductibles from $500 to $1,500, and liability limits from $50,000 to $500,000. Included add-ons vary by tier, such as rental reimbursement, glass coverage, accident forgiveness, and new car replacement. If you select an add-on that is not included, its flat monthly surcharge is added.
Using exports to test scenarios
Use the CSV or PDF exports to store multiple runs, for example changing mileage from 8,000 to 22,000, or switching from Sedan (1.00) to Sports (1.25). Saving scenarios helps you spot which choices move the premium most, and which policy remains the best match across inputs.
On the chart, bars show estimated monthly premium for the top five options, while the line shows fit score. If the premium bars cluster tightly but scores differ, adjust deductible or liability to improve alignment. Aim for a score above 75 when choices are close.
FAQs
Is this a real quote from an insurer?
No. It is a planning estimate using sample policy data and rating factors. Use it to compare scenarios and prepare questions, then request official quotes from licensed insurers or agents.
How does my monthly budget affect ranking?
Budget influences up to 40 points of the fit score. Options closer to your target earn more points, even if they are slightly higher, because the scoring reduces points quickly as the gap grows.
Why can a higher deductible lower my estimate?
A higher deductible means you pay more out of pocket if a claim happens, so monthly pricing pressure drops. The calculator applies 0.90 at $1,500 versus 1.12 at $500 to reflect that trade-off.
What happens when I select add-ons?
Selected add-ons raise the match score when a policy already includes them. If a policy does not include an add-on, the tool adds its flat monthly surcharge, such as $3 for rental reimbursement.
Can I edit the sample policy list?
Yes. The example table is defined in the file as a dataset. You can adjust base premiums, deductibles, liability limits, and included add-ons to match your market, then the ranking, chart, and exports update automatically.
How should I interpret the risk index number?
Around 1.00 is average for the chosen factors. Values below 1.00 suggest lower exposure, while 1.25 or higher indicates higher exposure. It combines age, experience, mileage, history, vehicle type, and area risk.