Life insurance, weight and build charts

Life insurers use a build chart, a table of height against weight, to decide which rate classes you can qualify for. Weight alone rarely decides coverage, but being well above or below the ranges an insurer accepts for its best classes can move you down a tier, and a very high weight can lead to a rating. Because each company writes its own chart, the same height and weight can fit a preferred class at one insurer and a standard class at another.

What a build chart is

A build chart lists, for each height, the weight range allowed for each rate class. A person whose weight is inside the band for the best class can qualify on build; someone above it drops to the next class, and so on. The chart often differs for men and women, and some insurers adjust for age. These charts are insurer-specific and are not published for consumers by neutral sources, so be wary of any single chart presented online as "the" limit. See life insurance rate classes: preferred plus to substandard for how the classes fit together.

The chart is usually only one input. A person at the edge of the build range with excellent blood pressure, cholesterol and no tobacco use can still land a better class than a heavier person with several other concerns, and many underwriters allow some flexibility when the rest of the file is strong.

BMI and what it measures

Many insurers and health agencies use body mass index (BMI), which is weight relative to height, as a shorthand. The CDC's adult BMI categories define a healthy weight range as a BMI of 18.5 to 24.9, overweight as 25.0 to 29.9, and obesity as 30.0 or higher, with obesity further divided into classes. The CDC's BMI calculator lets you check yours.

BMI has limits. It does not distinguish muscle from fat, so a muscular person can have a high BMI and be healthy. For that reason, some insurers consider body composition, waist measurement or other health markers, and may flexibly treat athletes with documentation. Underwriters also care about low weight: a BMI that is well under the usual range, or unexplained weight loss, can raise questions about underlying illness.

What underwriters look at beyond the number

• Height and weight as measured. At a the life insurance medical exam: what to expect, the examiner measures you. Applications also ask for them, and a large difference between your stated and measured weight is a red flag. Do not guess; weigh yourself.
• Recent weight change. Large recent gain or loss is often asked about. Intentional loss from diet and exercise is a different story from unexplained loss. Insurers may want proof that loss has been stable, sometimes for several months, before treating the new weight as your baseline.
• Weight-related conditions. High blood pressure (life insurance with high blood pressure), high cholesterol (life insurance with high cholesterol), diabetes (life insurance with type 1 or type 2 diabetes) and sleep apnea (life insurance with sleep apnea) are linked to excess weight and are often weighed together with build.
• Weight-loss surgery and medications. Bariatric surgery and weight-loss drugs are handled differently by different insurers; see GLP-1 drugs like Ozempic and life insurance underwriting.
• Age. Acceptable ranges are commonly more generous at older ages.

How build affects your rate class

In general practice, a build within an insurer's best range leaves the top preferred classes open. Moving above it usually costs you a tier, which raises the premium. At higher weights, an insurer may offer only standard classes, and at the highest ranges it may add a table rating, an extra percentage on the premium; see table ratings and flat extras explained. Very high weight combined with other conditions can lead to postponement or a decline: see Declined for life insurance? What to do next.

Because the effect depends on the chart, two people with identical numbers can get different offers. An independent agent who knows which insurers are generous on build for your height and age can compare the options before you commit to a formal application.

Step by step: get a more accurate class

1. Weigh yourself in the morning on an accurate scale and record your height with shoes off. Use those figures on the application.
2. Check your BMI with the CDC calculator, and note if you are close to a category boundary.
3. Gather weight-related health numbers: blood pressure, cholesterol and blood sugar. Good numbers help offset build.
4. Ask an agent which insurers have more generous build tables for your height, sex and age, and request informal inquiries.
5. Consider timing. If you are in the middle of losing weight, an insurer may want a stable weight for a period before using the new figure. Applying sooner at the current class and later asking for reconsideration is one option; waiting is another. Compare the cost of waiting with your need for coverage.
6. Be accurate on the exam. Do not try to look lighter. Misstating weight can lead to a corrected rate or problems later; see what happens if you lie on a life insurance application.

A hypothetical example

Say two 40-year-old men are both 5 feet 10 inches tall. The first weighs 180 pounds and the second 235 pounds. The first may be inside the range for the best classes at many insurers if the rest of his file is clean. The second likely falls outside the best classes at most insurers, and the offer depends on each company's chart and on whether his blood pressure and cholesterol are normal. One insurer might price him at standard, another with a modest table rating. If he later loses 40 pounds and keeps it off, reapplying could change his class. These are illustrations only, not quotes or published limits.

Keeping the policy you have

If you already own a policy and have since lost weight, some insurers will reconsider your rate class on request, with new underwriting. If you have gained weight, your existing rate is generally locked in for the policy's life, which is a reason a level term policy bought while healthy can be valuable. Ask whether reconsideration is available and what it would cost. A new application restarts the two-year the two-year contestability period.

Key takeaways

• Insurers use build charts, height against weight, to set the best rate class you can reach; each insurer has its own chart, so results vary.
• BMI is a common shorthand, but underwriters also weigh muscle mass, recent weight changes and related conditions such as blood pressure and sleep apnea.
• Being over the preferred range usually costs a tier, and very high weights can bring a table rating.
• Report your true height and weight; the exam will measure them.
• Compare insurers and consider timing if you are actively losing weight.