Which calculator do you actually need?
Not everyone lands on this site for the same reason, so start with your situation rather than reading every guide in order.
If you have never bought a policy and just want a number, run the calculator at the top of this page, then read how much coverage you need for the reasoning behind the DIME method. If you already have a rough number in mind and want to know what it costs, go straight to cost per month or rates by age depending on whether coverage amount or your age is the bigger unknown for you.
Deciding between term and permanent coverage is a different question from sizing the amount, so term vs whole life cost covers that separately. Households weighing a round number like $500,000 against $1 million should read $500k vs $1 million before picking either one out of habit. And if one parent does not earn a paycheck, that person's coverage gets calculated differently. See coverage for stay-at-home parents rather than skipping them because there is no salary to replace.
A worked example, using this calculator's own math
The estimator above runs a version of the DIME method: it multiplies a $50,000 base by your income-replacement years, then applies a multiplier for debt and mortgage load, and another for future education costs. Leave every field at its default (10 years of income replacement, an average mortgage plus debt load, no college costs) and the calculator returns a coverage need of $700,000 to $910,000, with an estimated premium of $31 to $64 a month for a healthy 30-year-old.
Change two inputs and the number moves a lot. Push income replacement to 15 years, select a large mortgage plus debt, and add costs for two or more kids in college, and the same formula returns $1.76 million to $2.28 million of coverage, with a premium estimate of $79 to $160 a month. Neither answer is wrong. They are different households. That is the entire point of running your own numbers instead of borrowing someone else's rule of thumb.
What this calculator assumes, and where it can be off
The coverage side of the estimate is arithmetic: it adds a multiple of your income to a debt and mortgage factor and an education factor, the same skeleton behind the DIME framework used by financial planners. The premium side is a rougher approximation. It assumes a healthy, non-smoking applicant around age 30 and prices coverage at roughly $45 to $70 per million dollars of 20-year term insurance, based on published market rate ranges. Real quotes move with age, health class, tobacco use, and the carrier you apply to, sometimes by a factor of two or more in either direction. Treat the premium figure as a planning range for a rough conversation with an agent, not a quote you can hold anyone to.
The calculator also does not subtract savings, existing coverage, or a working spouse's income, all of which reduce what you need to buy. Run the fuller worksheet in the coverage guide if your situation has moving parts this quick version cannot capture.
