Life Insurance Needs Calculator (DIME Method)
Estimate how much life insurance coverage you need with the DIME method: Debt, Income replacement, Mortgage, and Education.
How to use this tool
- Enter your non-mortgage debt and your mortgage balance.
- Enter the annual income you want to replace and for how many years.
- Add expected education costs for your children.
- Subtract coverage and savings you already have to see your remaining gap.
The DIME method is a quick, widely used way to size a life insurance policy. It adds up four obligations your death benefit should cover — Debt, Income replacement, Mortgage, and Education — then subtracts the coverage and savings you already have.
Formula
DIME coverage need
Gross need = Debt + (Annual income × Years) + Mortgage + Education
Coverage needed = max(0, Gross need − Existing coverage & savings)
The income term replaces several years of earnings; the result is floored at zero because you cannot need negative coverage.
How it works
The DIME framework keeps life-insurance sizing transparent by tying every dollar of coverage to a specific obligation rather than a vague rule of thumb. Debt and the mortgage ensure your survivors are not forced to sell the home or service loans; the income term funds day-to-day living for a chosen number of years; and the education term sets aside tuition so children's plans survive the loss of a parent.
This calculator uses a simple (non-discounted) income multiple, which is the standard consumer version of DIME. It intentionally errs slightly high because it ignores future raises and investment growth on the death benefit — a conservative bias most planners prefer for a first estimate. For a precise figure, a fee-only advisor can run a discounted human-life-value model that accounts for inflation and the return earned on the payout.
Subtracting existing coverage and earmarked savings prevents over-insuring. If you already hold an employer group policy or a previous individual policy, count it here so you only buy the gap. Re-run the numbers after major life events — a new child, a paid-off mortgage, or a salary change all move your target materially.
Worked example
Married parent with a mortgage and college plans
- Income replacement: $60,000 annual income × 10 years = $600,000.
- Add debts and obligations: $20,000 debt + $600,000 income + $200,000 mortgage + $100,000 education = $920,000 gross need.
- Subtract existing coverage and savings: $920,000 − $50,000 = $870,000.
Coverage needed: $870,000.00
Income-replacement coverage by salary and years (income term only)
| Annual income | 5 years | 10 years | 15 years | 20 years |
|---|---|---|---|---|
| $40,000 | $200,000 | $400,000 | $600,000 | $800,000 |
| $60,000 | $300,000 | $600,000 | $900,000 | $1,200,000 |
| $80,000 | $400,000 | $800,000 | $1,200,000 | $1,600,000 |
| $100,000 | $500,000 | $1,000,000 | $1,500,000 | $2,000,000 |
| $150,000 | $750,000 | $1,500,000 | $2,250,000 | $3,000,000 |
Key terms
- DIME method
- A coverage-sizing rule that sums Debt, Income replacement, Mortgage, and Education, then subtracts assets already in place.
- Death benefit
- The lump sum a life-insurance policy pays to your beneficiaries when the insured person dies.
- Income replacement
- The portion of coverage meant to substitute for the insured's earnings for a set number of years.
- Human life value
- An alternative method that estimates the present value of your future earnings, discounted for inflation and investment return.
Frequently asked questions
- How much life insurance do I really need?
- There is no single answer, but the DIME method gives a defensible estimate by covering your debt, several years of income, your mortgage, and your children's education, minus what you already have. Many families land between 7x and 10x annual income.
- Should I include my employer's group life policy?
- Yes — count it under existing coverage. Group policies often end when you leave the job, so treat them as a temporary offset rather than a permanent solution.
- Does DIME account for inflation or investment growth?
- No. This consumer version uses a straight income multiple, which slightly over-estimates the need and so builds in a small safety margin. A discounted human-life-value model is more precise if you want to factor in returns on the payout.