Life Insurance Needs Calculator
Figure basis: Illustrative assumptionWork out how much life insurance your family would actually need with the DIME method: Debt, Income, Mortgage and Education. Enter your annual income and the number of years you would want it replaced, your outstanding mortgage, other debts and final expenses, and your children's expected education costs. The calculator totals those, subtracts the savings and existing coverage your family could already draw on, and shows the coverage gap: the amount of new life insurance worth considering. There is no single official figure for how much cover you need, so every input here is a clearly-labelled assumption you can change to match your own situation. Use it to sanity-check a quote, compare against the "10 to 12 times income" rule of thumb, or decide how much term cover to shop for. It is general information, not personalised financial or insurance advice.
Replacing $75,000 of income for 10 years, plus a $250,000 mortgage, $25,000 of other debt, $15,000 final expenses and education for 2 children at $100,000 each, gives a total need of $1,240,000.00. After subtracting $75,000 savings and $100,000 existing cover, the recommended coverage gap is $1,065,000.00.
How to read the badges beside each field: Official figures come from a cited authority; Regional average and Illustrative assumption values are editable placeholders, so replace them with your own figure before you rely on the result.
How the DIME method is calculated
DIME sizes a policy from what your family would need to replace, not from a flat multiple of income. It adds four buckets and subtracts what you already have set aside:
income replacement = annual income x years to replace
total need = income replacement + mortgage + other debts + final expenses + (children x education per child)
coverage gap = max(0, total need - savings earmarked - existing life insurance)
Worked example
$75,000 income replaced for 10 years, $250,000 mortgage, $25,000 other debts, $15,000 final expenses, 2 children at $100,000 education each, $75,000 savings, $100,000 existing cover:
- Income replacement = $75,000 x 10 = $750,000
- Other debts + final expenses = $25,000 + $15,000 = $40,000
- Education = 2 x $100,000 = $200,000
- Total need = $750,000 + $250,000 + $40,000 + $200,000 = $1,240,000
- Coverage gap = $1,240,000 - $75,000 - $100,000 = $1,065,000
Every figure above is an assumption you control. There is no official or government figure for how much life insurance a person needs; it depends entirely on your own debts, dependants and goals.
Why "10 times income" often misses
The "buy 10 to 12 times your income" shortcut is easy to quote and easy to get wrong in both directions. It ignores your mortgage, so a family with a large balance and young children is often badly under-insured by the rule; and it ignores savings and existing workplace cover, so a near-retiree with the house paid off and a full 401(k) can be over-insured by it. In the default example, the rule of thumb suggests $750,000 while the needs-based figure is $1,065,000, a $315,000 gap that would land on the surviving spouse.
Two inputs move the answer more than any other: the number of years of income you replace, and whether you include education. Replacing income only until the youngest child leaves home is very different from replacing it to your own retirement age. Be deliberate about that horizon rather than accepting a default, and revisit the whole calculation whenever a mortgage is paid down, a child is born, or your income steps up.
Finally, remember this tool sizes the coverage amount, not the product. A temporary need like this is usually met most cheaply with level term insurance whose length matches the years you are replacing, not permanent cover. Get quotes for the gap figure, and treat any amount already provided free through an employer as a starting layer, not the whole answer.
Life insurance needs: frequently asked questions
How much life insurance do I need?
A common rule of thumb is 10 to 12 times your annual income, but a needs-based method is more accurate. The DIME method adds up four things your policy should cover: Debt (non-mortgage debts and final expenses), Income (the years of income your family would need to replace), Mortgage (your outstanding balance), and Education (future costs for your children). You then subtract what you already have (savings and any existing coverage). This calculator does that sum for you.
What is the DIME method?
DIME stands for Debt, Income, Mortgage and Education. It is a needs-based way to size a life insurance policy: total your outstanding debts, the income your dependents would need replaced (annual income times the number of years), your remaining mortgage, and your children's expected education costs, then subtract savings and existing life insurance. The remainder is your coverage gap, the amount of new cover to consider.
Should I count my existing savings and 401(k)?
Liquid savings and investments that your family could actually use to cover the costs above can be subtracted from the total, because that money is already available. Retirement accounts are less clear-cut: they may carry taxes and penalties on early withdrawal and are usually intended for the surviving spouse's own retirement, so many planners leave them out. Enter whatever amount you would genuinely earmark for these needs.
Is term or whole life insurance better for covering a gap like this?
For a temporary need (replacing income until the children are grown and the mortgage is paid), level term life insurance is usually the lowest-cost way to cover the gap, because the need itself is temporary. Permanent (whole or universal) life costs far more per dollar of cover and suits estate-planning or lifelong-dependant situations. This tool sizes the coverage amount; it does not recommend a policy type. Speak to a licensed agent for product advice.
Method and sources
- Coverage sizing uses the DIME needs-analysis method (Debt, Income, Mortgage, Education), a standard financial-planning framework. No government or insurer figure is required; all inputs are your own.
- For unbiased consumer guidance on buying life insurance, see the NAIC (National Association of Insurance Commissioners) life insurance resources.
Reviewed by the CalculatorHub team, edited by James Graham, 28 July 2026. See our methodology. General information only, not financial or insurance advice. Consider speaking with a licensed insurance professional or fee-only financial planner.