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How much life insurance do I need? Cover calculator

Estimate how much life cover your family needs with three standard methods side by side: the needs approach, human life value and DIME.

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  1. Income
  2. Needs
  3. Methods
  4. Cover
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Educational, not financial or insurance advice. fibub doesn't sell insurance, name insurers or pass on your details: it only works out the numbers you type. Check your policy wording and the official source before you decide.

Your family's needs

Example numbers: change them to yours. Leave anything that does not apply at 0.

Needs approach
Human life value
DIME
10 times income (comparison only)

Why they differ: the needs approach starts from the future income your family would miss and then takes off what you already have. Human life value is only that future income in today's money. DIME adds up debt, income for the years, mortgage and education without discounting, so it is usually higher when the years are many. The "10 times income" rule ignores your family's situation.

How it is worked out: the family's yearly amount is income x (1 - your own share). Its present value is the sum over each year of amount x (1+growth)^t / (1+discount)^t. Needs = that + debts + goals + final costs - savings - existing cover (never below 0). DIME = debts + final costs + income x years + goals - existing cover. Tax, inflation beyond your growth figure and the cover's own cost are left out. Not financial or insurance advice. Nothing you type leaves this page.

What it does

There is no single right amount of life cover, so this tool shows three common ways to work it out side by side. The needs approach adds what your family would miss and owes, then takes off what they already have. Human life value turns your future income into today’s money. DIME adds up debt, income, mortgage and education.

It also shows “10 times income” but only as a comparison, because a rule of thumb ignores your debts and savings. All numbers are examples until you change them. Once you have a figure, see what a term quote should cost with fair price of a term life quote, compare savings policies with endowment, money-back and ULIP return (IRR), or plan paying off debts with the loan payoff planner.

How to use it

  1. Enter your yearly income after tax and the share you spend on yourself.
  2. Enter the years your family needs support, income growth and a discount rate.
  3. Add debts, goals such as education, funeral costs, savings and any cover you already have.
  4. Compare the three results and read the line about why they differ.

What each setting does

  • Share you spend on yourself: this part of your income would not be missed by the family.
  • Income growth: how fast your pay would have risen.
  • Discount rate: the return your family could earn on a payout; a higher rate means a smaller amount needed today.
  • Cover you already have: work cover and existing policies are subtracted.

Worked example

Income 100,000, own share 0%, 5 years, no growth, no discount and nothing else. The human life value is 5 x 100,000 = 500,000, and so is the needs approach. Add 200,000 of debts and 100,000 of existing cover and the needs approach becomes 600,000.

FAQs

Which method should I use? None is exact. Many people look at the needs approach first and use the others as a check.

Should the payout last for life? Choose the years your family would need support, such as until children are independent.

Does this include tax? No. Use after-tax income and check the official source for how a payout is taxed where you live.

How it’s worked out: needs = PV of family income + debts + goals + final costs - savings - existing cover.

Where the numbers come from

  • Present value of a growing payment, PV = sum of A x (1+g)^t / (1+i)^t for t = 0 to n-1; DIME (debt, income, mortgage, education) and needs-analysis are common planning methods. Checked: income 100,000 for 5 years with no growth or discount gives 500,000. Checked 2026-11-10; check the official source for tax rules where you live.

Standard scientific values, such as constants, atomic weights and melting points, are facts found in every textbook; we name where ours were checked. If you are an author or publisher and want a value, a credit or a table changed or removed, tell us and we will act quickly.

Last updated 2026-11-10.

Change log for How much life insurance do I need?

  1. Keep main's numbering: insurance stays #T824-#T835 (OCR moved to #T836 in #85) Details on GitHub
  2. Insurance tools move to #T825-#T836 so #T824 stays with Image to text Details on GitHub
  3. Insurance tools take the next free codes, #T824 to #T835 Details on GitHub
  4. Add life-cover-needed tool Details on GitHub

Every change to fibub

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