Find your ideal healthy weight range based on your height.
Based on Devine formula. A healthy range, not an exact target.
Ideal weight is just one health metric. Body composition (muscle vs fat ratio), waist circumference, blood pressure, blood glucose, and energy levels are equally important indicators of health. Focus on overall wellness rather than achieving a specific number.
Ideal weight formulas like Devine, Robinson, and Miller were originally developed for medical dosing calculations, not general health guidance. They estimate a weight range based primarily on height and frame, while BMI uses height and current weight together. Neither formula accounts for muscle mass, bone density, or individual body composition, so results should be treated as a general reference range, not a strict target.
Two women of the same height can be equally healthy at meaningfully different weights, depending on muscle mass, frame size, and overall fitness. Rather than chasing an exact number, most healthcare providers recommend focusing on sustainable habits — balanced nutrition, regular movement, adequate sleep — and letting weight settle naturally within a healthy range.
Ideal weight calculators give a range rather than a single target because healthy weight depends on frame size, muscle mass, and individual body composition, not just height. For women specifically, being within a healthy range supports regular ovulation and reduces pregnancy complication risk, but the range itself can span 15-20 pounds depending on your build. Use this as a general reference point, not a strict target.
It's worth knowing the history here: the Devine formula, still widely used today, was created in 1974 specifically to help calculate medication dosing, not to define health or aesthetics. The Robinson and Miller formulas came later as refinements. None were designed with body composition, ethnicity, or athletic build in mind, which is exactly why modern healthcare providers treat these numbers as one reference point among several, rather than a definitive target to chase.
Waist circumference, blood pressure, fasting glucose, cholesterol, energy levels, and how you feel day to day collectively give a far more complete picture of health than weight alone. Two women at the exact same "ideal weight" range can have very different metabolic health depending on these other factors — which is why providers increasingly look at the whole picture rather than any single number in isolation.
Medical Disclaimer: This tool is for educational purposes only and should not replace professional medical advice. Always consult a qualified healthcare provider.
What it does. Shows a formula-based reference weight and range for your height. It is not a measure of health or a target you should aim for.
How it works. Devine formula for women: 45.5 kg + 2.3 kg for each inch of height over 5 feet. The range shown is 10% below to 10% above that figure.
Example. At 165 cm (about 65 in) the formula gives about 56.9 kg, with a range of about 51.2–62.6 kg.
Medical disclaimer: This tool gives an educational estimate based on the information you enter. It is not medical advice, a diagnosis or a substitute for care from a qualified healthcare professional. See our Medical Disclaimer.
Last updated: October 2026 · Published by Bloom Health Woman (not medically reviewed) · Editorial Policy