Home Insurance Calculator

The Home Insurance Coverage Calculator estimates dwelling, personal-property, loss-of-use, and liability coverage from home replacement cost and net worth. It can also compare current dwelling coverage with the model's 80% threshold.

Modeled coverage amounts

The implementation uses these simple relationships:

$\text{Dwelling coverage}=\text{Replacement cost}$ $\text{Personal property}=50\%\times\text{Dwelling coverage}$ $\text{Loss of use}=20\%\times\text{Dwelling coverage}$ $\text{Liability}=\max(\$300{,}000,\text{Net worth})$ $\text{Minimum dwelling comparison}=80\%\times\text{Replacement cost}$

These percentages are planning assumptions, not a quote or policy recommendation.

Worked example

For a $500,000 replacement cost,$350,000 current dwelling limit, and $450,000 net worth:

1. Modeled dwelling coverage: $500,000.
2. Personal property: $250,000.
3. Loss of use: $100,000.
4. Liability: $450,000 because it is above the $300,000 floor.
5. The 80% comparison is $400,000, leaving a modeled $50,000 gap from current coverage.

Questions

Is replacement cost the same as market value?

No. Replacement cost estimates the expense of rebuilding the structure; market value also reflects land, location, and buyer demand.

Does meeting 80% mean the home is fully insured?

No. It is only the threshold used by this calculator's comparison. Policy terms, coinsurance clauses, local rebuilding costs, exclusions, and endorsements determine real coverage needs.

Does this calculate an insurance premium?

No. It estimates coverage amounts, not the price an insurer will charge.

Limitations

The calculator does not model location risk, construction type, deductibles, flood or earthquake exclusions, detached structures, valuables, code-upgrade costs, or insurer underwriting. Review replacement-cost estimates and policy limits with a licensed insurance professional.