Life Insurance Needs Calculator: How Much Do You Need?

Is $1,105,000 the right amount of life insurance?

On the defaults — earning $85,000 a year with 10 years to replace, a $250,000 mortgage, $15,000 of other debts, a $100,000 education fund and $15,000 of final expenses — the income replacement is $850,000, the total need is $1,230,000, and after $100,000 of existing cover and $25,000 of savings the recommended coverage is $1,105,000. The standard way to size life insurance is the DIME method — D is debts and final expenses, I is income replacement, M is the mortgage, E is the education fund. In plain terms: replace the income your family would lose, pay off the mortgage and debts, fund the kids’ education, and cover final expenses — then subtract the life insurance you already have and the savings your family could use.

Five things about the model are worth stating plainly. First, the income replacement is the annual income times the years to replace — $85,000.00 × 10 = $850,000. Second, the total need adds the mortgage, other debts, education fund and final expenses to that replacement — $850,000.00 + $250,000.00 + $15,000.00 + $100,000.00 + $15,000.00 = $1,230,000. Third, what you already hold is the existing life insurance plus the liquid savings — $100,000.00 + $25,000.00 = $125,000. Fourth, the recommended coverage is the total need minus what you already hold, and it is never below $0 — $1,230,000.00 − $125,000.00 = $1,105,000. And fifth, a common rule of thumb is 10–15 times annual income, but the DIME method is more honest because it counts what you actually owe and what you already hold; all listed in Accuracy & limitations.

The worked example, line by line

Setup: $85,000.00 annual income, 10 years to replace, $250,000.00 mortgage, $15,000.00 other debts, $100,000.00 education fund, $15,000.00 final expenses, $100,000.00 existing cover, $25,000.00 savings.

Line 1 — income replacement. The income replacement is $85,000.00 × 10 = $850,000.

Line 2 — total need. The total need is $850,000.00 + $250,000.00 + $15,000.00 + $100,000.00 + $15,000.00 = $1,230,000.

Line 3 — already held. What you already hold is $100,000.00 + $25,000.00 = $125,000.

Line 4 — recommended coverage. The recommended coverage is $1,230,000.00 − $125,000.00 = $1,105,000.

Line 5 — the check. $1,105,000.00 + $125,000.00 = $1,230,000, the total need.

Every branch, checked

Income $120,000: Income replacement $1,200,000; total need $1,580,000; already held $125,000; recommended coverage $1,455,000 — A $120,000.00 income needs $1,200,000.00 of replacement — the whole extra $35,000.00 of income lands on the recommended coverage.

Years to replace 20: Income replacement $1,700,000; total need $2,080,000; already held $125,000; recommended coverage $1,955,000 — Stretching the replacement to 20 years doubles the income replacement to $1,700,000.00 — the longest lever in the DIME method.

Mortgage $0: Income replacement $850,000; total need $980,000; already held $125,000; recommended coverage $855,000 — With no mortgage the total need falls by exactly the $250,000.00 mortgage — the mortgage is the biggest single lump in the need.

Education fund $200,000: Income replacement $850,000; total need $1,330,000; already held $125,000; recommended coverage $1,205,000 — Doubling the education fund to $200,000.00 adds $100,000.00 to the total need and to the recommended coverage.

Existing coverage $500,000: Income replacement $850,000; total need $1,230,000; already held $525,000; recommended coverage $705,000 — With $500,000.00 of cover already held, the recommended coverage falls to $705,000.00 — every dollar already held is a dollar less to buy.

Liquid savings $100,000: Income replacement $850,000; total need $1,230,000; already held $200,000; recommended coverage $1,030,000 — With $100,000.00 of savings the family already holds $200,000.00, so the recommended coverage falls to $1,030,000.00.

Income $60,000, 15 years: Income replacement $900,000; total need $1,280,000; already held $125,000; recommended coverage $1,155,000 — A lower income over more years still needs $900,000.00 of replacement — the years matter as much as the income.

The reverses, worked backwards

Smallest whole-dollar income for the recommended coverage to reach $1,500,000: At the displayed $124,500 the recommended coverage is $1,500,000 (Income replacement $1,245,000; total need $1,625,000; already held $125,000; recommended coverage $1,500,000). At $124,499 the recommended coverage is $1,499,990 — ten dollars of income short of $1,500,000.00.

Smallest whole number of years for the recommended coverage to reach $1,500,000: At the displayed 15 years the recommended coverage is $1,530,000 (Income replacement $1,275,000; total need $1,655,000; already held $125,000; recommended coverage $1,530,000). At 14 years the recommended coverage is $1,445,000.00 — one year short of $1,500,000.00.

Largest whole-dollar mortgage for the recommended coverage to stay at $1,000,000 or less: At the displayed $145,000 the recommended coverage is $1,000,000 (Income replacement $850,000; total need $1,125,000; already held $125,000; recommended coverage $1,000,000). At $145,001 the recommended coverage is $1,000,001.00 — one dollar of mortgage over $1,000,000.00.

Smallest whole-dollar existing coverage for the recommended coverage to fall to $750,000 or less: At the displayed $455,000 the recommended coverage is $750,000 (Income replacement $850,000; total need $1,230,000; already held $480,000; recommended coverage $750,000). At $454,999 the recommended coverage is $750,001.00 — one dollar of cover over $750,000.00.

Smallest whole-dollar education fund for the recommended coverage to reach $1,250,000: At the displayed $245,000 the recommended coverage is $1,250,000 (Income replacement $850,000; total need $1,375,000; already held $125,000; recommended coverage $1,250,000). At $244,999 the recommended coverage is $1,249,999.00 — one dollar of education fund short of $1,250,000.00.

Smallest whole-dollar savings for the recommended coverage to fall to $1,000,000 or less: At the displayed $130,000 the recommended coverage is $1,000,000 (Income replacement $850,000; total need $1,230,000; already held $230,000; recommended coverage $1,000,000). At $129,999 the recommended coverage is $1,000,001.00 — one dollar of savings over $1,000,000.00.

What the defaults assume

The defaults are an $85,000.00 income, 10 years to replace, a $250,000.00 mortgage, $15,000.00 of other debts, a $100,000.00 education fund, $15,000.00 of final expenses, $100,000.00 of existing cover and $25,000.00 of savings — Income replacement $850,000; total need $1,230,000; already held $125,000; recommended coverage $1,105,000. With a Income $120,000, Income replacement $1,200,000; total need $1,580,000; already held $125,000; recommended coverage $1,455,000 — A $120,000.00 income needs $1,200,000.00 of replacement — the whole extra $35,000.00 of income lands on the recommended coverage. With a Years to replace 20, Income replacement $1,700,000; total need $2,080,000; already held $125,000; recommended coverage $1,955,000 — Stretching the replacement to 20 years doubles the income replacement to $1,700,000.00 — the longest lever in the DIME method. With a Mortgage $0, Income replacement $850,000; total need $980,000; already held $125,000; recommended coverage $855,000 — With no mortgage the total need falls by exactly the $250,000.00 mortgage — the mortgage is the biggest single lump in the need. With a Education fund $200,000, Income replacement $850,000; total need $1,330,000; already held $125,000; recommended coverage $1,205,000 — Doubling the education fund to $200,000.00 adds $100,000.00 to the total need and to the recommended coverage. With a Existing coverage $500,000, Income replacement $850,000; total need $1,230,000; already held $525,000; recommended coverage $705,000 — With $500,000.00 of cover already held, the recommended coverage falls to $705,000.00 — every dollar already held is a dollar less to buy. With a Liquid savings $100,000, Income replacement $850,000; total need $1,230,000; already held $200,000; recommended coverage $1,030,000 — With $100,000.00 of savings the family already holds $200,000.00, so the recommended coverage falls to $1,030,000.00. With a Income $60,000, 15 years, Income replacement $900,000; total need $1,280,000; already held $125,000; recommended coverage $1,155,000 — A lower income over more years still needs $900,000.00 of replacement — the years matter as much as the income. With Income $0, Income replacement $0; total need $380,000; already held $125,000; recommended coverage $255,000 — With no income there is nothing to replace — the need is just the mortgage, debts, education and final expenses. With Years to replace 0, Income replacement $0; total need $380,000; already held $125,000; recommended coverage $255,000 — Zero years is valid, not an error — no income replacement is needed, for example with no dependents. With Existing coverage $1,500,000, Income replacement $850,000; total need $1,230,000; already held $1,525,000; recommended coverage $0 — already covered — With $1,500,000.00 already held against a $1,230,000.00 need, the answer is $0 — already covered, never a negative number. With All zeros, Income replacement $0; total need $0; already held $0; recommended coverage $0 — With nothing to replace and nothing owed, the need is $0 and the recommended coverage is $0. With High earner: income $200,000, 20 years, mortgage $500,000, debts $50,000, education $300,000, final $25,000, coverage $250,000, savings $100,000, Income replacement $4,000,000; total need $4,875,000; already held $350,000; recommended coverage $4,525,000 — A high earner with a big mortgage and a large education fund needs $4,000,000.00 of income replacement alone. With Single, no dependents: income $50,000, 5 years, mortgage $0, debts $5,000, education $0, final $10,000, coverage $0, savings $10,000, Income replacement $250,000; total need $265,000; already held $10,000; recommended coverage $255,000 — A single person with no dependents still needs $250,000.00 of replacement plus $5,000.00 of debts and $10,000.00 of final expenses. With No coverage, no savings, Income replacement $850,000; total need $1,230,000; already held $0; recommended coverage $1,230,000 — With nothing already held, the recommended coverage is the whole $1,230,000.00 need.

Output · formula · meaning

Who uses this

• The parent earning $85,000 with a $250,000 mortgage: they learn the recommended coverage is $1,105,000 — and they check the 20-year branch to see it jump to $1,955,000.
• The single person with no dependents: they learn the answer is $255,000 — and they check the $0-income edge to see the recommendation is still $255,000 even with no income to replace.
• The person who already holds $500,000 of cover: they learn the recommended coverage is $705,000 — and they check the $455,000 reverse to see the cover that would bring it down to $750,000.
• The high earner with a $500,000 mortgage: they learn the recommended coverage is $4,525,000 — and they check the $124,500 reverse to see the income where the recommendation first reaches $1,500,000.

Accuracy & limitations

The math is first-principles: the income replacement is the annual income times the years to replace, the total need adds the mortgage, other debts, education fund and final expenses, and the recommended coverage is the total need minus the existing cover and savings, never below $0; all figures are whole dollars. What the model cannot do is know your future: it counts today’s income, not the pay rises or inflation ahead; it counts today’s mortgage, not the balance after years of payments; the education fund is a guess about costs years away; it counts no taxes, no employer cover, and no Social Security survivor benefits; and it assumes the years you pick are the years your family would actually need. Use it to size the cover — then review the number after big life changes (marriage, a child, a new mortgage, a pay rise).

Frequently asked questions