There's a healthy range, not one number
Ask what a woman 'should' weigh at a given height and the honest answer is a range, not a single figure. Healthy women of the same height can differ by 10 kilograms or more depending on their build, muscle, and frame โ and all be perfectly healthy. What you can pin down is a sensible weight band and a mid-point estimate to aim for.
The most widely used guide is the healthy BMI range of 18.5 to 24.9, translated into a weight range for your specific height.
Healthy weight by height (rough guide)
Here's the approximate healthy weight range for women at common heights, based on the healthy BMI band:
5 foot 0 (152 cm): roughly 43โ58 kg (95โ128 lb). 5 foot 2 (157 cm): 46โ62 kg (101โ136 lb). 5 foot 4 (163 cm): 49โ66 kg (108โ145 lb). 5 foot 6 (168 cm): 52โ70 kg (115โ154 lb). 5 foot 8 (173 cm): 55โ74 kg (122โ164 lb). 5 foot 10 (178 cm): 59โ79 kg (129โ174 lb).
Anywhere within your height's band is considered a healthy weight โ the width of the range is the whole point.
Ideal-weight formulas
If you want a single reference point, several peer-reviewed formulas โ Devine, Robinson, Miller, and Hamwi โ estimate an ideal body weight for women from height. They tend to cluster around the middle of the healthy BMI range. For example, the Devine formula puts a woman of 5 foot 4 at about 57 kg (125 lb).
Our ideal weight calculator runs all four formulas at once, averages them, and shows your healthy BMI range alongside, so you get both a target and the sensible zone around it.
Why the number isn't the whole story
Weight-for-height guides only know your height and weight โ not your body composition. A muscular, athletic woman can sit above the 'ideal' range and be very lean and healthy, while someone within it can carry excess fat and little muscle. That's why the number is a starting point, not a verdict.
For a fuller picture, check your body fat percentage and how your clothes fit. If those are healthy, your exact weight matters far less than the scale implies.
Finding your target
Use your height's healthy range as the zone to aim for, take the ideal-weight estimate as a mid-point if you like a concrete goal, then judge it against how you look and feel. Aim for a weight you can maintain with habits you enjoy. Our ideal weight and BMI calculators map your personal range in seconds.