Is term or whole life insurance better?

Term is best for temporary needs (raising kids, a mortgage) at low cost. Whole life suits permanent needs, estate planning, or forced savings — but costs far more per dollar of coverage.

Why is whole life so much more expensive?

Whole life covers you for life and builds cash value, so premiums fund both insurance and a savings/investment component plus higher fees and commissions.

Does whole life build cash value?

Yes — part of each premium builds tax-deferred cash value you can borrow against. But growth is usually modest and surrender charges apply in early years.

When does whole life make sense?

For lifelong dependents (e.g., a special-needs child), estate-tax planning, business buy-sell agreements, or people who want forced savings and guaranteed coverage regardless of age.

Term vs Whole Life Insurance Calculator

By the KalkWise Editorial Team Reviewed for accuracy Updated June 2026

What is the term vs whole life insurance calculator?

In short

Term life is far cheaper than whole life, freeing money to invest. If term costs $40/month and whole life $400/month, investing the $360 difference at 7% for 30 years grows to roughly $440,000 — often more than a whole life policy's cash value, which is the basis of 'buy term and invest the difference.'

Compares the total cost of term vs whole life insurance and projects how much the premium difference could grow if invested instead.

How to use this calculator

1Enter the monthly premium for comparable term and whole life policies.
2Set the term length in years.
3Set an expected investment return for the premium difference.
4See the projected 'buy term and invest the difference' value.

The formula

diff=whole−term

invested=diff×(1+r)n−1r

diff = whole − term; invested = diff × ((1+r)^n − 1) / r × (1+r)

diff: — Monthly difference = whole life − term
r: — Monthly return = annual / 12
n: — Months = years × 12
invested: — Future value of investing the difference

Worked example

The scenario

$40/month term, $400/month whole life, 30 years, 7% return.

gives

The result

Monthly difference: $360. Invested value: ~$440,000. Term total cost: $14,400 vs $144,000 whole life.

Common use cases

Families deciding between term and permanent life insurance.
Evaluating the 'buy term and invest the difference' strategy.
Comparing the long-run cost of whole life premiums to investing.

Limitations & assumptions

Whole life builds guaranteed cash value and lasts your whole life — term expires.
Assumes you actually invest the difference consistently, which many people don't.
Does not model whole life dividends, surrender charges, or the tax treatment of cash value.

Frequently asked questions

A strategy of buying cheaper term life insurance and investing the premium savings (vs whole life) in the market, which historically often outgrows a whole life policy's cash value.

Disclaimer: KalkWise calculators are provided for general informational and educational purposes only and do not constitute financial, investment, tax, or legal advice. Results are estimates based on the figures you enter and the assumptions described above. Actual outcomes will vary. Consult a qualified professional before making financial decisions.

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