Insurance

Life Insurance Needs Calculator

The honest way to size a policy is to add up what your family would have to fund without your income, then subtract what already exists. That is the DIME method — debt, income, mortgage, education — and it is what this calculator runs.

Tested against worked examplesHow we verify

Annual income to replace

Years your family would need it

Often the years until the youngest child is independent, or until a partner reaches retirement.

Mortgage balance

Other debts

Car loans, student loans, credit cards — anything that would survive you.

Future education costs

Final expenses

Funeral, medical, and estate settlement costs.

Savings and assets available

Life insurance you already have

Include employer-provided group coverage.

Coverage gap to fill

$1,365,000

What a new policy would need to cover, on top of what you have.

Employer group coverage usually ends when the job does, and it is often only one or two times salary. Count it, but do not build the whole plan on it.

Total need: $1,575,000
Income replacement: $1,200,000
Debts, mortgage & education: $375,000
Already covered: $210,000

Already covered$210,00013%

Gap$1,365,00087%

Compare scenariosTry three values of one input

Vary

Life Insurance Needs Calculator results for three values of Annual income to replace
Annual income to replace
Coverage gap to fill	$1,215,000	$1,365,000+$150,000	$1,515,000+$300,000
Total need	$1,425,000	$1,575,000+$150,000	$1,725,000+$300,000
Income replacement	$1,050,000	$1,200,000+$150,000	$1,350,000+$300,000

Every other input stays at the value you set above — currently $80,000 for annual income to replace. Differences are measured against the first column.

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How this calculator works

Total need = (annual income × years of support) + mortgage + other debts + education costs + final expenses. The gap subtracts your available savings and any coverage you already hold, floored at zero.

Income replacement is not discounted to present value, the standard DIME simplification: it errs toward more coverage rather than less. This is an educational estimate, not an underwriting decision or a quote — actual premiums depend on your age, health, and the insurer.

What this assumes

A needs-based estimate: income replacement over the dependency years, plus debts and anticipated costs, less existing assets and cover.
It does not price a policy. Premiums depend on age, health and underwriting, and only an application produces a real quote.
Employer-provided cover is usually one or two times salary and ends when the job does, so it is a supplement rather than a foundation.

What changes this number

Years of dependency remaining: The largest input. The need shrinks each year as children approach independence and the mortgage falls.
Existing assets: Directly reduce the gap. Insurance covers the shortfall, not the whole obligation.
Age at application: Premiums are set by age and health at the time and stay level for the term, so buying earlier locks a lower price permanently.

A worked example

Take the family, 15 years of support scenario. These figures are produced by the calculator above, not written alongside it, so they always match what the tool returns.

What you enter

Annual income to replace: $80,000
Years your family would need it: 15 years
Mortgage balance: $240,000
Future education costs: $100,000

What it returns

Coverage gap to fill: $1,365,000
Total need: $1,575,000
Income replacement: $1,200,000
Debts, mortgage & education: $375,000
Already covered: $210,000

Employer group coverage usually ends when the job does, and it is often only one or two times salary. Count it, but do not build the whole plan on it.

Try an example

Family, 15 years of support No children, mortgage only Already well covered

Frequently asked questions

How much life insurance do I need?

Enough to replace the income your dependents rely on, clear the mortgage and other debts, fund education you intended to pay for, and cover final expenses — minus the savings and coverage you already have. The common shortcut is 10–12× income, but that ignores your actual debts and assets, which is why this calculator adds them up directly.

What is the DIME method?

DIME stands for Debt, Income, Mortgage, Education — the four things a policy typically has to fund. You total them (plus final expenses), then subtract existing assets and coverage. It produces a defensible number in about two minutes, without an agent's sales worksheet.

Should I count my employer's life insurance?

Count it, but carefully. Group coverage is usually one to two times salary and it almost always ends when you leave the job, so it is the least reliable layer of the plan. Many people hold an individual term policy sized to the gap and treat employer coverage as a bonus.

Do I need term or whole life for this amount?

For most families, term. It buys the large coverage this calculation usually calls for at a fraction of the cost, for exactly the years the need exists. Whole life costs several times more because part of the premium funds a cash value — see our guide on how much life insurance you need for the trade-off in full.

Does the calculation account for inflation or investment returns?

No, and that is deliberate. Income replacement is counted in today's dollars without discounting, which slightly overstates the need — a conservative choice most planners prefer for a first estimate. A fee-only planner can build the discounted version around your specific situation.