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Flood Insurance Calculator

Flood premium from zone, elevation and cover, for the peril standard policies exclude.

Your numbers

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Result

Estimated annual premium $810.48
Per month $67.54
Effect of elevation -22.0%
Total cover $350,000
Cost per $1,000 of cover $2.32
About $810.48 a year for $350,000 of cover in zone AE. Being 1 feet above base flood elevation changes the premium by -22.0%, which is why an elevation certificate is worth obtaining.

An estimating tool, not insurance advice and not a quote. Underwriting sets real premiums on factors no calculator sees. What cover is appropriate is a question for a licensed broker. Flood is excluded from every standard homeowners policy. Cover comes through the national programme or private insurers, and programme limits cap building and contents cover well below the value of many homes, with excess flood cover needed above that. Most policies carry a waiting period before cover starts, so buying as a storm approaches does not work. Roughly a quarter of flood claims come from outside high-risk zones.

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Questions

About this calculator

Do I need it if I am not in a flood zone?

Zone X is lower risk, not no risk, and a substantial share of claims come from outside the high-risk zones. Premiums there are correspondingly low.

Why does elevation matter so much?

Because depth of water drives the loss. Each foot above base flood elevation cuts expected damage sharply, and an elevation certificate can reduce the premium substantially.

Is there a waiting period?

Usually, typically thirty days for the national programme with limited exceptions. Cover cannot be bought once a storm is forecast.

The formula

premium = cover / 1000 x base rate x zone factor x elevation factor, less deductible credit

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