Ideal weight calculator
Enter your height and sex to get an ideal weight and a healthy range.
Ideal weight calculator
Estimate your ideal weight from your height and sex using the classic Devine formula, plus the healthy weight range based on a BMI of 18.5–24.9. It’s a guideline, not a diagnosis — muscle, build and age all matter.
Formula
Devine: men 50 kg + 2.3 kg per inch over 5 ft; women 45.5 kg + 2.3 kg per inch over 5 ft. The healthy range comes from BMI: lower = 18.5 × height², upper = 24.9 × height² (height in metres).
Frequently asked questions
Is ideal weight the same as healthy weight? Not quite — “ideal weight” is a single formula figure, while the healthy range is a band most people fall into.
Does it account for muscle? No — very muscular people can be heavier yet healthy. Use it as a rough guide.