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Term vs Whole Life Calculator

Compare two ways to insure the same life. Enter the cover, both premiums and your assumed returns, then press Calculate to see whether buying term and investing the difference beats a whole life policy.

Written by TopicDrill Editorial Team·Updated June 2026

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Your inputs

Compare two policies for the same cover, then press Calculate.

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Ahead at the horizon

$202,161

Buy term and invest the difference comes out ahead

Buy term, invest difference$453,412
Whole life cash value$251,250
Total term premiums paid$12,000
Total whole life paid$156,000

Side fund vs cash value

Invested difference Cash value
$0$113.4k$226.7k$340.1k$453.4k0 yr15 yr30 yr

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How the term vs whole life calculator works

The two policies cover the same life, so the real question is what happens to the money. With whole life you pay one large premium and the insurer builds a cash value inside the policy. With term you pay a small premium and invest the difference yourself. This tool runs both paths side by side for every year of your chosen horizon.

Each year the side fund grows last year's balance at your investment return and adds the premium difference. The whole life cash value grows at its credited rate but loses a chunk of the early premiums to acquisition costs, which is why it lags at the start. The chart plots both lines so you can spot any crossover point.

A worked example

Take 500,000 dollars of cover. Term costs 400 dollars a year, whole life costs 5,200 dollars, so the difference invested is 4,800 dollars a year. At a 7 percent investment return over 30 years the side fund grows past 450,000 dollars, while whole life cash value at 4 percent reaches a smaller figure. Here term and invest the difference wins, but raise the cash rate or lower the market return and the gap narrows quickly.

Things to keep in mind

The outcome is only as good as your assumptions, and real investment returns are far from smooth. The model also simplifies cash value growth and ignores dividends, surrender charges and tax nuances that vary by policy. For a neutral explainer on the two policy types, see Investor.gov. To first size how much cover you need at all, start with our term insurance calculator.

Frequently asked questions

What does buy term and invest the difference mean?

It is a strategy where you buy cheap term insurance for protection and invest the money you would have spent on a pricier whole life premium. The idea is that a diversified investment may grow faster than a whole life policy's cash value, leaving you with both cover during the term and a larger pot at the end.

When can whole life come out ahead?

Whole life can win if your investment return is low, if you would not actually invest the difference with discipline, or if you need guaranteed lifelong cover and the tax treatment of cash value matters to your estate. The break even line in this tool shows the year, if any, where the policy's cash value overtakes the side fund.

Why does the side fund start small in early years?

Because whole life cash value is front loaded with costs, while a side fund only holds the premium difference you invest each year. Early on the fund has had little time to compound, so both balances are modest. The gap usually widens later as the invested difference compounds year after year.

Is this calculator a recommendation to drop whole life?

No. It is a comparison tool that depends entirely on the assumptions you enter, especially the investment return and cash value growth rate. Insurance decisions also involve health, estate planning and behaviour, so use the result as one input and speak to a fee only adviser before making a change.

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