ARTICLE 4 — Ideal Weight (supports the /ideal-weight-calculator/ tool)

ARTICLE 4 — Ideal Weight (supports the /ideal-weight-calculator/ tool)

ARTICLE 4 — Ideal Weight (supports the /ideal-weight-calculator/ tool)

Working title: How Much Should You Weigh? The Honest Answer for Your Height

Slug: `how-much-should-you-weigh`

Primary keyword: how much should I weigh

Secondary: ideal weight by height, ideal weight calculator, healthy weight range, what is my ideal weight

Category: Kitchen Science → Health Basics · Author voice: Ellie

Internal links: /ideal-weight-calculator/, /calorie-calculator/

External dofollow: WHO BMI classification — https://www.who.int/news-room/fact-sheets/detail/healthy-diet (or https://www.who.int/europe/news-room/fact-sheets/item/a-healthy-lifestyle—who-recommendations)

Word count target: ~1,700 · Schema: FAQPage after publish

Meta title: How Much Should You Weigh? Ideal Weight by Height (Honest Guide)

Meta description: Your healthy weight is a range, not a magic number. See ideal weight charts by height in pounds and kilos, what the formulas actually measure, and what to do next.

How Much Should You Weigh? The Honest Answer for Your Height

I grew up believing there was one perfect number for every body — you know the one, printed on some chart taped inside a school nurse’s office. You stepped on the scale and either “passed” or didn’t. Here’s the thing I wish someone had told me at fifteen: that number never existed. A healthy weight isn’t a single figure. It’s a range, usually about 30 to 40 pounds wide, and where you sit comfortably inside it depends on your build, your muscle, your age, and honestly, your life.

So this guide won’t hand you a verdict. It’ll hand you something more useful: your actual healthy range, a plain-English explanation of where these numbers come from, and a realistic idea of what to do with them — from a cook’s perspective, not a gym-brochure one.

If you already know your height, our free Ideal Weight Calculator will give you your personal range in ten seconds. Everything below explains what that result really means.

First: there is no single “ideal weight”

Ask five doctors for your ideal weight and you may get five slightly different answers. Not because they’re guessing — because they’re using different tools:

ToolWhat it doesWhat it’s good for
WHO healthy BMI rangeWeight range where your BMI lands between 18.5 and 24.9The modern standard; gives a range, not a number
Devine formulaOne target number per height (different for men and women)Classic 1974 formula still used for medication dosing
Hamwi / Robinson / MillerOlder single-number formulas with small tweaksYou’ll see them on other sites; they disagree by a few pounds
Body composition measuresBody fat %, waist circumferenceBetter picture of health, but needs special equipment

Notice something? Every formula built before the 1980s spits out one number. Modern medicine moved to ranges because bodies vary. Any website that tells you “your ideal weight is exactly 141 lb” is overselling what math can do.

Your healthy weight range by height

This table combines both approaches: the WHO healthy BMI range (the wide band) and the Devine formula (the narrower targets). Find your height and see the honest spread.

Healthy weight chart — women and men

HeightHealthy weight range (BMI 18.5–24.9)Devine targetDevine target
5′0″ (152 cm)95–127 lb (43–58 kg)110 lb (50 kg)100 lb (46 kg)
5′1″ (155 cm)98–132 lb (44–60 kg)115 lb (52 kg)105 lb (48 kg)
5′2″ (157 cm)101–136 lb (46–62 kg)120 lb (55 kg)110 lb (50 kg)
5′3″ (160 cm)104–141 lb (47–64 kg)125 lb (57 kg)116 lb (52 kg)
5′4″ (163 cm)108–145 lb (49–66 kg)131 lb (59 kg)121 lb (55 kg)
5′5″ (165 cm)111–150 lb (50–68 kg)136 lb (62 kg)126 lb (57 kg)
5′6″ (168 cm)115–154 lb (52–70 kg)141 lb (64 kg)131 lb (59 kg)
5′7″ (170 cm)118–159 lb (54–72 kg)146 lb (66 kg)136 lb (62 kg)
5′8″ (173 cm)122–164 lb (55–74 kg)151 lb (68 kg)141 lb (64 kg)
5′9″ (175 cm)125–169 lb (57–76 kg)156 lb (71 kg)146 lb (66 kg)
5′10″ (178 cm)129–174 lb (58–79 kg)161 lb (73 kg)151 lb (68 kg)
5′11″ (180 cm)133–179 lb (60–81 kg)166 lb (75 kg)156 lb (71 kg)
6′0″ (183 cm)136–184 lb (62–83 kg)171 lb (78 kg)161 lb (73 kg)
6′1″ (185 cm)140–189 lb (64–86 kg)176 lb (80 kg)166 lb (75 kg)
6′2″ (188 cm)144–194 lb (65–88 kg)181 lb (82 kg)171 lb (78 kg)

Values calculated from the standard formulas; round numbers. For an exact personal result including half-inches and kilos or pounds side by side, use the Ideal Weight Calculator.

Look how wide that middle column is. At 5′6″, the healthy range runs from about 115 to 154 pounds — a 39-pound span. Someone at 120 lb and someone at 150 lb can be equally healthy at the same height. Frame, muscle mass, and genetics decide where in the range you land. This is why “ideal weight” as a single number deserves its retirement.

Where these numbers come from (the short version)

BMI is just weight ÷ height², dressed up in metric units. It was designed in the 1830s for populations, not individuals, and the World Health Organization defines the healthy band as 18.5–24.9. It knows nothing about muscle versus fat — which is why very muscular people often read “overweight” while feeling and being perfectly healthy.

The Devine formula came from a 1974 paper about calculating medicine doses, not from any study of who lives longest. It says: 50 kg (110 lb) for a man at 5 feet, plus 2.3 kg for every inch above that; 45.5 kg (100 lb) for a woman, same increments.

Both are blunt instruments. But blunt instruments are still useful when you use them for what they’re good at: giving you a ballpark so far off readings become obvious, and a sanity check against the scale’s daily drama.

The takeaway: if your weight falls inside your range, stop letting the bathroom scale run your mood. If it falls well outside, that’s information worth acting on — gently, and ideally with your doctor in the loop.

Why the scale lies to you daily

Here’s kitchen-science territory I actually understand: your body weight swings 2–5 lb (1–2 kg) in a single day. Salt pulls water into your tissues. A big carb-heavy dinner stores glycogen, and every gram of glycogen drags 3 grams of water along with it. That “3 pounds overnight”? It wasn’t fat. Fat gain requires roughly 3,500 surplus calories — nobody eats three days of food by accident between breakfast and bedtime.

Practical rules I follow myself: