Term Life Insurance Calculator
Term life insurance is the simplest, most affordable way to protect your family during the years they depend on your income. This calculator sizes your coverage with the DIME method, and below we cover the other half of the decision: choosing a term length that lasts exactly as long as you need it.
How much life insurance do you need?
The DIME method totals what your family would need to replace if your income stopped, then subtracts what they already have.
Estimated life insurance needed
$0
- Debt + final expenses$0
- Income replacement$0
- Mortgage$0
- Education$0
- Less savings & existing cover$0
A round figure for planning. Many families choose a policy at the next convenient coverage band above this number.
Formula & assumptions
Income replacement is un-discounted (a deliberately simple, slightly conservative approach). It does not adjust for investment growth, inflation, or Social Security survivor benefits — a licensed advisor can refine it.
Two decisions: how much, and for how long
Term life insurance has only two real variables that matter for your family’s protection: the coverage amount (the death benefit) and the term length (how many years it lasts). The calculator above settles the first using the DIME method. This page focuses on the second, because a perfectly sized policy that expires five years too early — or one you overpay for because the term is longer than you need — both miss the mark.
Sizing coverage with DIME
DIME totals what your family would need to replace: Debts and final expenses, Income replacement (annual income × the years your family relies on it), Mortgage balance, and an Education fund, minus existing savings and coverage. For a parent earning $70,000 with a $200,000 mortgage, $20,000 in debt, an $80,000 education goal, $30,000 saved and replacing income for 18 years, that’s roughly $20,000 + $1,260,000 + $200,000 + $80,000 − $30,000 = about $1.53 million. Round to a clean $1.5M policy.
Choosing the right term length
The best term length is the one that carries your family through their period of dependence. Ask yourself: in how many years will the mortgage be gone, the kids be self-supporting, and your retirement savings be large enough to stand on their own? That horizon is your term. Practical guidance:
- 30-year term — young parents with small children and a fresh mortgage.
- 20-year term — the most popular choice; covers school-age kids to adulthood.
- 15-year term — older children, a partly paid mortgage, mid-career.
- 10-year term — a specific shorter obligation or bridge to retirement.
Buying a longer term locks in a level cost for more years but costs more; buying too short risks needing coverage again later at an older, more expensive age (or after a health change that makes you harder to insure). When in doubt, err slightly longer.
Why term is the right tool for income protection
The whole logic of term life is that your need for coverage is temporary. Most people are “self-insured” by retirement: the house is paid off, the children are independent, and savings have grown. Term insurance is cheap precisely because it covers only those high-need years and builds no cash value — almost every dollar buys death benefit. That’s why a healthy 35-year-old can often buy a large 20-year policy for a modest monthly cost, while the same death benefit in whole life can cost many times more. For pure family protection, that efficiency is hard to beat.
A common strategy: laddering
Some families “ladder” term policies — for example, a 30-year policy for the mortgage and a 20-year policy for income replacement — so coverage steps down as needs fall, lowering total costs. Whether you ladder or buy a single policy, start from an accurate DIME figure, choose a term that outlasts your dependence, and get quotes from several insurers. Revisit your coverage after big life changes, and remember: the cheapest time to buy term life is almost always today, because rates rise with age and health.
Frequently asked questions
How much term life insurance do I need?
Use the DIME method: add debts and final expenses, income × years to replace, mortgage balance and an education fund, then subtract savings and existing coverage. The calculator above does this. Most families need somewhere between 7 and 15 times their annual income.
What term length should I choose?
Match the term to how long your family depends on your income — until your youngest child is independent, your mortgage is paid off, or you reach retirement. Common terms are 10, 15, 20 and 30 years. A 20- or 30-year term suits young parents; a shorter term may fit those closer to retirement.
Why is term life so much cheaper than whole life?
Term covers you only for a set period and builds no cash value, so the insurer’s cost is lower and almost all your money goes to the death benefit. Whole life lasts your whole life and includes a savings component, which makes it many times more expensive per dollar of coverage.
What happens when the term ends?
Coverage stops unless you renew (usually at a much higher age-based rate) or convert to a permanent policy. The goal is to choose a term long enough that, by the time it ends, your family no longer depends on the coverage — the mortgage is paid and the kids are grown.
Does this calculator give me a cost?
No. It estimates how much coverage to buy. Term costs depend on your age, health, term length and the insurer. Get quotes once you know your coverage amount and term.
Sources & references
Figures and methodology on this page are drawn from the following public sources. Insurance data changes — we note when this page was last reviewed above, and we encourage you to check the latest figures directly.
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