Ideal Weight for a 6'1" Female
At 6'1" (185.4 cm) you are 9 inches above the 5'4" average height for an adult woman in the United States (CDC/NHANES anthropometric reference data) - an unusual height, and one that sits at the very edge of what these formulas were built to describe. The healthy BMI band of 18.5 to 24.9 puts the reference weight range for that height at 140 to 189 lb (63.6 to 85.6 kg), and that range - not any single number - is what this page treats as the answer. The four classic ideal-body-weight formulas disagree by 10 lb at this height (Robinson 157 lb, Miller 156 lb, Devine 166 lb and Hamwi 163 lb), which is exactly why a range is more useful than picking one of them. Body frame size shifts the band by roughly 10% either way: a small-framed woman at 6'1" reads 126-170 lb and a large-framed one 154-208 lb, so measure your wrist in the calculator below rather than assuming medium. None of these figures accounts for muscle mass, body composition, pregnancy or any medical condition, and none of them is a target - they are population reference points, and your own healthy weight is a conversation for you and your doctor.
Read this before you read the numbers
Every figure on this page is a population-level statistical estimate. It is not a target, not a goal, and not medical advice.
None of these methods can see muscle mass, bone density, body composition, pregnancy, breastfeeding, disability, or any medical condition or medication that affects weight. Healthy people live above and below every range shown here.
If you are worried about your weight in either direction, or if you have a history of disordered eating, please talk to a doctor or a registered dietitian rather than to a calculator.
A healthy weight range for your height, with body frame size actually factored in
Quick Tips
- A range is the honest answer — the four classic formulas can disagree by ten pounds at the same height.
- Body frame size moves the range by roughly 10% in each direction, and most calculators ignore it entirely.
- Adult formulas do not apply under 18; growth-chart percentiles do.
Healthy weight range
Under 18: different rules apply
Body frame size
Medium (assumed)Small frame: 126–170 lb · Medium frame: 140–189 lb · Large frame: 154–208 lb
Measure the smallest part of your wrist and enter it above to have the range adjusted for your frame.
The five estimates, side by side
| Method | Published | Estimate | Versus the range |
|---|---|---|---|
| Healthy BMI range | WHO / CDC | 140–189 lb | A range, not a point |
| Robinson | 1983 | 157 lb | inside the range |
| Miller | 1983 | 156 lb | inside the range |
| Devine | 1974 | 166 lb | inside the range |
| Hamwi | 1964 | 163 lb | inside the range |
Last updated: August 21, 2026
Healthy weight by height — Female, adult
Every height from 4'6" to 6'8", with the four formula estimates alongside the healthy range.
| Height | cm | Healthy range | Robinson | Miller | Devine | Hamwi |
|---|---|---|---|---|---|---|
| 4'6" | 137.2 | 77–103 lb | 86 | 99 | 70 | 71 |
| 4'7" | 139.7 | 80–107 lb | 89 | 102 | 75 | 76 |
| 4'8" | 142.2 | 83–111 lb | 93 | 105 | 80 | 81 |
| 4'9" | 144.8 | 85–115 lb | 97 | 108 | 85 | 86 |
| 4'10" | 147.3 | 89–119 lb | 101 | 111 | 90 | 91 |
| 4'11" | 149.9 | 92–123 lb | 104 | 114 | 95 | 95 |
| 5'0" | 152.4 | 95–127 lb | 108 | 117 | 100 | 100 |
| 5'1" | 154.9 | 98–132 lb | 112 | 120 | 105 | 105 |
| 5'2" | 157.5 | 101–136 lb | 116 | 123 | 110 | 110 |
| 5'3" | 160 | 104–141 lb | 119 | 126 | 116 | 115 |
| 5'4" | 162.6 | 108–145 lb | 123 | 129 | 121 | 120 |
| 5'5" | 165.1 | 111–150 lb | 127 | 132 | 126 | 125 |
| 5'6" | 167.6 | 115–154 lb | 131 | 135 | 131 | 129 |
| 5'7" | 170.2 | 118–159 lb | 134 | 138 | 136 | 134 |
| 5'8" | 172.7 | 122–164 lb | 138 | 141 | 141 | 139 |
| 5'9" | 175.3 | 125–169 lb | 142 | 144 | 146 | 144 |
| 5'10" | 177.8 | 129–174 lb | 146 | 147 | 151 | 149 |
| 5'11" | 180.3 | 133–179 lb | 149 | 150 | 156 | 154 |
| 6'0" | 182.9 | 136–184 lb | 153 | 153 | 161 | 159 |
| 6'1" | 185.4 | 140–189 lb | 157 | 156 | 166 | 163 |
| 6'2" | 188 | 144–194 lb | 160 | 159 | 171 | 168 |
| 6'3" | 190.5 | 148–199 lb | 164 | 162 | 176 | 173 |
| 6'4" | 193 | 152–205 lb | 168 | 165 | 181 | 178 |
| 6'5" | 195.6 | 156–210 lb | 172 | 168 | 187 | 183 |
| 6'6" | 198.1 | 160–215 lb | 175 | 171 | 192 | 188 |
| 6'7" | 200.7 | 164–221 lb | 179 | 174 | 197 | 192 |
| 6'8" | 203.2 | 168–227 lb | 183 | 177 | 202 | 197 |
Healthy range is BMI 18.5 to 24.9 at a medium frame. Formula columns are single-point adult estimates and are shown for comparison only. Average adult height source: CDC National Center for Health Statistics, NHANES anthropometric reference data for adults aged 20 and over. Reference figures last verified: August 21, 2026.
Ideal Weight Calculator: A Healthy Range, Not a Single Number
There is no single ideal weight for a given height, and any calculator that gives you one is hiding how much disagreement sits underneath it. The four classic ideal body weight formulas — Robinson, Miller, Devine and Hamwi — can differ by ten pounds or more for the same person, and none of them was written to tell an individual what to weigh. They were built for clinical work: estimating drug doses, setting ventilator tidal volumes, standardising research.
So this calculator leads with the thing that is actually defensible: the weight range associated with a healthy BMI at your height, adjusted for your body frame size. The four formulas are still shown, side by side, as context — because seeing how far apart they land is the most honest illustration of how approximate this whole exercise is.
The Four Formulas, and Why They Disagree
All four share one structure — a base weight at 5 feet, plus a fixed amount for every inch above it — and differ only in their constants:
- Robinson (1983) — men: 52 kg + 1.9 kg per inch over 5 ft. Women: 49 kg + 1.7 kg per inch.
- Miller (1983) — men: 56.2 kg + 1.41 kg per inch. Women: 53.1 kg + 1.36 kg per inch.
- Devine (1974) — men: 50.0 kg + 2.3 kg per inch. Women: 45.5 kg + 2.3 kg per inch.
- Hamwi (1964) — men: 48.0 kg + 2.7 kg per inch. Women: 45.5 kg + 2.2 kg per inch.
Hamwi came first, written on a napkin-simple rule for dietitians. Devine adapted it for drug dosing and became the version most clinical software still uses. Robinson and Miller were both attempts, published in the same year, to fit real population data better than Devine did. Miller adds the least per inch, so the taller you are the further it drifts from the other three.
Below 5 feet, the per-inch term is subtracted. A 4'10" result is the base weight minus two inches' worth. This calculator does that rather than quietly clamping to the 5-foot value the way some tools do — but it is an extrapolation, because none of the four was ever fitted on adults under 5 ft. At those heights the BMI range is the figure to trust.
Body Frame Size: The Input Everyone Publishes and Nobody Uses
Two people of the same height can carry meaningfully different amounts of skeleton, and a heavier skeleton means more weight at the same body composition. The standard proxy is wrist circumference, on the reasoning that a wrist carries almost no fat and very little muscle, so what you are measuring is mostly bone.
| Who | Small frame | Medium frame | Large frame |
|---|---|---|---|
| Women under 5'2" | under 5.5 in | 5.5 – 5.75 in | over 5.75 in |
| Women 5'2" to 5'5" | under 6 in | 6 – 6.25 in | over 6.25 in |
| Women over 5'5" | under 6.25 in | 6.25 – 6.5 in | over 6.5 in |
| Men | under 6.5 in | 6.5 – 7.5 in | over 7.5 in |
Most ideal weight calculators print this table and then ignore it completely. This one feeds it into the result: enter a wrist measurement and the healthy range shifts by roughly 10% in the appropriate direction, and the page tells you which classification it used. It is a rough correction built on a rough proxy — but a rough correction that is applied beats a precise-looking table that changes nothing.
Why Children and Teenagers Need a Different Method
The four adult formulas have no age term at all. Feed them a 12-year-old's height and they return an adult's weight, which is both meaningless and potentially harmful. A growing body has a different healthy weight at every age, and the reference used by paediatricians is the CDC BMI-for-age growth chart: broadly, the 5th to the 85th percentile for the child's exact age and sex.
If you enter an age under 18, this calculator switches to that basis automatically, labels it clearly on the page, and shows no formula results at all. Even then, treat it as orientation only. Children grow in bursts, at wildly different times, and a paediatrician plotting an individual growth curve over several visits learns far more than any single calculation can tell you.
What These Numbers Cannot See
Body composition. BMI is weight against height and nothing else. A muscular person can land above the range with very low body fat; someone inside it can have a high fat proportion and little muscle. If composition matters to you, a body fat estimate tells you more than any weight figure.
Pregnancy and breastfeeding. Nothing on this page applies. Weight gain in pregnancy is expected and is tracked against pre-pregnancy weight by a midwife or doctor.
Age and ancestry. Older adults lose muscle, bone density and a little height, all of which move BMI without any change in health. Several health bodies also use a lower overweight threshold for people of South Asian and East Asian ancestry.
Medical conditions and medication. Thyroid disorders, fluid retention, oedema, amputation, and many common medications all shift weight in ways no height-based formula can account for.
Why Trust This Calculator?
Transparency: every formula, constant and threshold used is printed on this page. Nothing is hidden behind a single headline number.
Honesty about limits: the adult formulas are switched off under 18, extrapolation below 5 ft is labelled as extrapolation, and the frame adjustment is described as the rough correction it is.
Privacy: nothing is stored or sent anywhere. The calculation runs entirely in your browser.
Not medical advice: these are population-level reference figures. They are not a target, and your own healthy weight is a conversation for you and a doctor or registered dietitian.