Ideal weight for a 6′6″ (198 cm) man

For a man 6′6″ (198 cm) tall, a healthy weight is 72.6–97.7 kg (160.1–215.5 lb) — the WHO healthy BMI range of 18.5–24.9.

The average of four ideal-body-weight formulas is 86.4 kg (190.5 lb).

Why two answers? The range is where health risks are lowest for adults; the single number is an estimate from clinical formulas (Devine, Robinson, Miller, BMI 22) — a reasonable target, not a medical prescription.

Height in other units: 6′6″ = 78 in = 198.1 cm = 1.98 m · 86.4 kg = 190.5 lb

160.1 lb 215.5 lb 258.7 lb

Underweight

Normal

Overweight

Obese

190.5 lb

Check your weight

BMI categories for a 6′6″ (198 cm) man

Weight Category	BMI	Weight, kg	Weight, lb
Underweight (Severe thinness)	< 16.0	< 62.8	< 138.5
Underweight (Moderate thinness)	16.0–16.9	62.8–66.3	138.5–146.2
Underweight (Mild thinness)	17.0–18.4	66.7–72.2	147.1–159.2
Normal / Healthy weight	18.5–24.9	72.6–97.7	160.1–215.5
Overweight (Pre-obese)	25.0–29.9	98.1–117.4	216.3–258.7
Obese (Class I)	30.0–34.9	117.8–137.0	259.6–302.0
Obese (Class II)	35.0–39.9	137.4–156.6	302.9–345.3
Obese (Class III)	≥ 40.0	≥ 157.0	≥ 346.1

* according to the World Health Organization (WHO)

How the ideal weight is calculated

Devine, Robinson and Miller are clinical formulas that add a fixed amount of weight for every inch of height above 5 feet (152.4 cm); the BMI 22 target sits in the middle of the healthy BMI range. We show each result and their average. Averaging them is this site's method, not an official clinical standard, so treat the number as a guide rather than a prescription.

Method	Equation	Calculation	Result
Devine (1974)	50.0 + 2.3 × (in − 60)	50.0 + 2.3 × (78.0 − 60) = 91.4 kg	91.4 kg 201.5 lb
Robinson (1983)	52.0 + 1.9 × (in − 60)	52.0 + 1.9 × (78.0 − 60) = 86.2 kg	86.2 kg 190.0 lb
Miller (1983)	56.2 + 1.41 × (in − 60)	56.2 + 1.41 × (78.0 − 60) = 81.6 kg	81.6 kg 179.9 lb
BMI 22 target	22 × H(m)²	22 × 1.98² = 86.4 kg	86.4 kg 190.4 lb
Average of the four	(91.4 + 86.2 + 81.6 + 86.4) ÷ 4		86.4 kg 190.5 lb

Height in inches: 198.1 cm ÷ 2.54 = 78.0 in. Each result is rounded to 0.1 kg; the average is calculated from the rounded values.

Does age or ethnicity change the healthy range?

For adults (18+), the WHO BMI categories are the same for women and men and do not change with age.
Over 65: in a meta-analysis of studies in older adults (Winter et al., 2014), mortality was higher at a BMI below about 23 and was not higher in the overweight range (25–29.9). A slightly higher weight is often acceptable in older age — agree on a target with your doctor.
Asian populations: a WHO expert consultation (2004) found that health risks start to rise at lower BMI values in many Asian populations and proposed additional action points at BMI 23 and 27.5. At 6′6″ (198 cm), BMI 23 equals 90.3 kg (199.0 lb).
Children and teens: adult ranges do not apply — use BMI-for-age: BMI for Kids

Ideal weight for men based on height

Height, cm	ft / in	Healthy range, kg	Healthy range, lb	Ideal, kg
150	4′11″	41.5–55.9	91.6–123.3	50.5
152	5′0″	43.0–57.8	94.7–127.5	52.3
155	5′1″	44.4–59.8	97.9–131.8	54.2
157	5′2″	45.9–61.8	101.1–136.1	56.0
160	5′3″	47.4–63.8	104.4–140.6	57.8
163	5′4″	48.9–65.8	107.8–145.1	59.7
165	5′5″	50.4–67.9	111.2–149.6	61.6
168	5′6″	52.0–70.0	114.6–154.3	63.4
170	5′7″	53.6–72.1	118.1–159.0	65.3
173	5′8″	55.2–74.3	121.7–163.8	67.2
175	5′9″	56.8–76.5	125.3–168.6	69.1
178	5′10″	58.5–78.7	128.9–173.5	71.0
180	5′11″	60.2–81.0	132.6–178.5	72.9
183	6′0″	61.9–83.3	136.4–183.6	74.8
185	6′1″	63.6–85.6	140.2–188.7	76.7
188	6′2″	65.4–88.0	144.1–193.9	78.6
190	6′3″	67.1–90.4	148.0–199.2	80.6
193	6′4″	68.9–92.8	152.0–204.6	82.5
196	6′5″	70.8–95.2	156.0–210.0	84.5
198	6′6″	72.6–97.7	160.1–215.5	86.4
201	6′7″	74.5–100.3	164.2–221.0	88.4
203	6′8″	76.4–102.8	168.4–226.7	90.3
206	6′9″	78.3–105.4	172.6–232.4	92.3
208	6′10″	80.3–108.0	176.9–238.1	94.3
211	6′11″	82.2–110.7	181.3–244.0	96.3
213	7′0″	84.2–113.4	185.7–249.9	98.2
216	7′1″	86.2–116.1	190.1–255.9	100.3
218	7′2″	88.3–118.8	194.6–261.9	102.3
221	7′3″	90.3–121.6	199.2–268.1	104.3

* healthy range: BMI 18.5–24.9

Key numbers

What is the ideal weight for a 6′6″ (198 cm) man?

For a man 6′6″ (198 cm) tall, the average of four formulas is 86.4 kg (190.5 lb). The healthy range is wider: 72.6–97.7 kg.

What is a healthy weight range for a 6′6″ (198 cm) man?

A BMI of 18.5–24.9 corresponds to 72.6–97.7 kg (160.1–215.5 lb) at this height.

Underweight threshold for a 6′6″ (198 cm) man?

Below 72.6 kg (160.1 lb), which is a BMI under 18.5.

Overweight threshold for a 6′6″ (198 cm) man?

Above 97.7 kg (215.5 lb) — a BMI of 25 or more. From 117.8 kg (259.6 lb), BMI 30, it is classed as obesity.

Fun Facts About a 6′6″ Man

Worldwide, only 0.0% of men are 198 cm or taller — top 1%!
In the Netherlands, about 2.2% of men are taller than 198 cm.
In the USA, about 0.1% of men are taller than 198 cm.
In Japan, about 0% of men are taller than 198 cm.
A regulation basketball rim is 305 cm high — 107 cm above your head!

Percentiles are rough estimates based on average adult heights from national surveys, assuming a normal distribution.

Calculate for another height

Sources

World Health Organization. Obesity and overweight — fact sheet; WHO Technical Report Series 894 (2000).
Devine BJ. Gentamicin therapy. Drug Intell Clin Pharm. 1974;8:650–655.
Robinson JD, Lupkiewicz SM, Palenik L, et al. Determination of ideal body weight for drug dosage calculations. Am J Hosp Pharm. 1983;40(6):1016–1019.
Miller DR, Carlson JD, Lloyd BJ, Berry BJ. Determining ideal body weight (and mass). Am J Hosp Pharm. 1983;40(10):1622–1625.
WHO Expert Consultation. Appropriate body-mass index for Asian populations and its implications for policy and intervention strategies. Lancet. 2004;363(9403):157–163.
Winter JE, MacInnis RJ, Wattanapenpaiboon N, Nowson CA. BMI and all-cause mortality in older adults: a meta-analysis. Am J Clin Nutr. 2014;99(4):875–890.

Methodology last reviewed: 2026-10-03 · For general information only; not a substitute for advice from a doctor or dietitian. Not for pregnancy or people under 18.