Utilzivo

Ideal Weight Calculator

What should you weigh for your height? BMI tells you a category, but many people want a concrete target number. Using the Devine formula — the classic clinical standard — this calculator gives your ideal body weight plus a healthy ±10% range for your frame, a realistic zone to aim for rather than a single magic number.

How to Use the Ideal Weight Calculator

  1. Enter your height in centimeters, measured without shoes.
  2. Select your gender — the formula differs for men and women.
  3. Press Calculate to see your Devine ideal weight.
  4. Use the healthy range (±10%) as a realistic target zone instead of fixating on one number.

Practical example

A 180 cm man has a Devine ideal weight of 75.0 kg, with a healthy range of 67.5–82.5 kg. A 165 cm woman has an ideal of 56.9 kg, with a range of 51.2–62.6 kg. If you currently weigh 90 kg at 180 cm, the range tells you that even reaching 82.5 kg — the top of the zone — would be a meaningful, healthy improvement, which is far more motivating than a single distant target.

Key features and benefits

  • Devine formula: the long-established clinical standard, still used in medicine today.
  • Realistic range: ±10% accounts for different bone structures and builds.
  • Motivating: a zone is easier to aim for — and stay in — than a single number.
  • Instant: one click, no sign-up, no data stored.
  • Private: computed entirely in your browser.

Limitations

The Devine formula was created for medication dosing in the 1970s, not fitness, and it ignores muscle mass, bone density, age, and body composition — a muscular athlete can be “overweight” by this measure while being very healthy, and older adults naturally carry weight differently. It also says nothing about fat distribution, which matters more for health than total weight. Use it alongside waist measurement and how you feel, not as a verdict on your body. Children, teenagers, and pregnant women should not use adult ideal-weight formulas at all — growth charts and professional guidance apply instead, since bodies in those stages follow completely different norms.