Life Insurance Calculator

A multiple of income is an easy answer and a poor one. It takes no account of whether you have a mortgage, whether your children are two or twenty-two, or whether an employer already provides cover. Two households on identical incomes can need amounts that differ by several hundred thousand dollars.

This calculator adds up the obligations that money would actually have to meet, subtracts what already exists, and reports the difference. What comes out is a documented figure you can defend, rather than a number someone quoted at you.

Result

Additional cover needed

$1,911,000

Total need: $2,146,000
Income replacement portion: $1,656,000
Debt payoff portion: $332,000
Education portion: $140,000
Final expenses portion: $18,000
Existing cover and savings: $235,000
Share already covered: 10.95%
Surplus over the need: $0

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

This method adds up obligations rather than applying a rule of thumb multiple of income. It ignores inflation and any investment return on the payout - the present-value tool handles those.

Coverage needs change with every major life event. Re-run this whenever income, debts or dependants change.

Needs analysis

Item	Amount
Income replacement (18 years)	$1,656,000
Mortgage balance	$310,000
Other debts	$22,000
Education costs	$140,000
Final expenses	$18,000
Total need	$2,146,000
Existing coverage and savings	-$235,000
Coverage gap	$1,911,000

How to use the life insurance calculator

Enter the annual income that would need replacing, and for how many years.
Add the mortgage balance, other debts, expected education costs and final expenses.
Enter any cover already in force and savings that would genuinely be available.
Read the gap, then check the breakdown to see which obligation dominates it.

What people use this for

Deciding how much cover to buy before requesting quotes.
Checking whether employer group cover is sufficient on its own.
Re-running the numbers after a birth, a house move or a debt being cleared.
Documenting the reasoning behind a coverage amount for your own records.

Worked examples

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

Young family with a mortgage

$92,000 of income replaced for 18 years, a $310,000 mortgage, $22,000 of other debt, $140,000 of education costs, $18,000 final expenses, against $200,000 of group cover and $35,000 saved.

Additional cover needed: $1,911,000
Total need: $2,146,000
Share already covered: 10.95%

Later, with the mortgage nearly gone

The same household fifteen years on: 4 years of support, a $45,000 mortgage, no education costs, and more saved.

Additional cover needed: $57,000
Surplus over the need: $0

What belongs in the calculation

Income replacement keeps the household running for a defined period. Debt payoff removes obligations that would otherwise transfer to the people left behind. Education is usually the largest single future commitment for families with children. Final expenses cover what arrives within weeks rather than years.

What does not belong is a lifestyle the household was never going to afford. Life cover exists to prevent a financial collapse, not to fund an upgrade.

The number is supposed to fall over time

Cover need peaks when debt is highest and dependants are youngest, then declines steadily as the mortgage amortises, children become independent and savings accumulate.

That shape is the whole argument for matching a term to the period of highest need rather than buying permanent cover sized for a moment that passes. Re-running this every few years almost always shows the honest figure has moved down.

Methodology and assumptions

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

Total need = (annual income × years) + mortgage + other debts + education + final expenses.
The gap subtracts existing cover and liquid savings. Inflation and the investment return on a lump sum are not modelled here - the income replacement calculator handles both.
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

How many years of income should I replace?

Commonly the number of years until the youngest dependant is independent, or until a surviving partner reaches retirement. There is no universally correct answer.

Should I count employer cover?

Count it, but note that most group cover ends when employment does. If it is a large share of your protection, that dependency is worth recognising.

Does this account for inflation?

No. It adds obligations in today’s money. Use the income replacement calculator to bring inflation and investment return into the figure.

Is a gap always a problem?

It means the obligations listed exceed the resources listed. Whether that matters depends on who would be affected and what other support exists.

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