Rex says
Money math without the spreadsheet headache. Plug in your numbers and I'll show you exactly where the dollars land.
Try a scenario
Click to load — tweak from there.Inputs
Result
Estimated annual premium
$1,512
Per month (escrow)
$126
Dwelling limit you need
$360,000
Wind / hurricane deductible
$0
Insurer pays on modelled claim
$14,000
You pay on modelled claim
$1,000
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How to use this
- 1Enter home size (sq ft).
- 2Enter local rebuild cost ($/sq ft).
- 3Enter base rate per $1,000 of coverage ($).
- 4Enter roof age (years).
- 5Enter all-peril deductible.
- 6Enter wind / hurricane deductible (% of dwelling).
- 7Enter typical claim you want to model ($).
- 8Read your estimated annual premium on the right — it updates as you type.
- 9Hit Share to keep the scenario or send it to someone.
About this calculator
Homeowners premiums are driven by replacement cost, not market value — insurers price the cost to rebuild the structure with today's labor and materials, which is why a home that sells for $600,000 in a city might insure on a $320,000 dwelling limit while an identical build in a remote area costs more to insure. This estimator starts from square footage and local build cost per square foot, applies your deductible choice, adjusts for roof age and construction type, adds the separate wind or hurricane deductible common in coastal states, and returns an annual premium range plus the out-of-pocket you would face on a total loss and on a typical partial claim. Use it before you renew: raising an all-peril deductible from $1,000 to $2,500 usually cuts 8-15% of the premium, while under-insuring the dwelling limit can trigger a coinsurance penalty that reduces payment on every claim, not just large ones.
Worked example
Using the values the calculator loads with:
Inputs
- Home size: 2000 sq ft
- Local rebuild cost: 180 $/sq ft
- Base rate per $1,000 of coverage: 4.2 $
- Roof age: 8 years
- All-peril deductible: $1,000
- Wind / hurricane deductible: 0 % of dwelling
- Typical claim you want to model: 15000 $
Results
- Estimated annual premium: $1,512
- Per month (escrow): $126
- Dwelling limit you need: $360,000
- Wind / hurricane deductible: $0
- Insurer pays on modelled claim: $14,000
- You pay on modelled claim: $1,000
What each field means
Inputs
- Home size (sq ft)
- The home size used in the calculation, measured in sq ft. Starts at 2000 sq ft so you have a working example on load. Accepted range: 400–12000 sq ft.
- Local rebuild cost ($/sq ft)
- The local rebuild cost used in the calculation, measured in $/sq ft. Starts at 180 $/sq ft so you have a working example on load. Accepted range: 80–600 $/sq ft.
- Base rate per $1,000 of coverage ($)
- The base rate per $1,000 of coverage used in the calculation, measured in $. Starts at 4.2 $ so you have a working example on load. Accepted range: 1–20 $.
- Roof age (years)
- The roof age used in the calculation, measured in years. Starts at 8 years so you have a working example on load. Accepted range: 0–40 years.
- All-peril deductible
- Pick the option that matches your situation — the maths changes per option. Choices: $500, $1,000, $2,500, $5,000.
- Wind / hurricane deductible (% of dwelling)
- The wind / hurricane deductible used in the calculation, measured in % of dwelling. Starts at 0 % of dwelling so you have a working example on load. Accepted range: 0–10 % of dwelling.
- Typical claim you want to model ($)
- The typical claim you want to model used in the calculation, measured in $. Starts at 15000 $ so you have a working example on load. Accepted range: 0–500000 $.
Results
- Estimated annual premium
- Returned as a money amount in US dollars and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Per month (escrow)
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Dwelling limit you need
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Wind / hurricane deductible
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Insurer pays on modelled claim
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- You pay on modelled claim
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
Should the dwelling limit match my home's market value?
No. Market value includes land and location premium; the dwelling limit should cover reconstruction of the structure. In hot markets the rebuild figure is often well below the sale price, and in rural areas it can be above it.
What is a coinsurance penalty?
Most policies require insuring to at least 80% of replacement cost. Insure below that and the insurer can reduce every partial claim payment proportionally, so under-insuring to save premium quietly cuts your payout on small claims too.
Why does roof age matter so much?
Roof claims dominate homeowners losses. Many carriers switch to actual cash value settlement on roofs past 15-20 years, or decline the risk outright, which is why the factor here rises steeply with age.
Is flood included?
No. Standard homeowners policies exclude flood, which requires a separate NFIP or private flood policy. This estimate covers the standard package only.
Accuracy and limitations
- Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
- Rates are treated as fixed for the whole period — variable-rate products will drift from this projection.
- This is educational maths, not financial advice. Check anything contractual with the lender or your accountant.
Related tools
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). Home Insurance Cost Estimator. Retrieved from https://www.revenuelab.fyi/toolbox/home-insurance-cost-estimator
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/home-insurance-cost-estimator" target="_blank" rel="noopener">Home Insurance Cost Estimator — RevenueLab</a> (2026).</p>
Source: [Home Insurance Cost Estimator — RevenueLab](https://www.revenuelab.fyi/toolbox/home-insurance-cost-estimator) (2026).