Check your body mass index, see where it sits on the scale, and find the healthy weight range for your height.
Enter your height and weight, then tap Calculate.
Adult BMI categories from the World Health Organization.
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Good to know: These are estimates for general wellness, not medical advice. They’re made for healthy adults: if you’re pregnant or breastfeeding, under 18, have a medical condition or follow a diet your doctor prescribed, talk to your doctor or a licensed dietitian first.
Body mass index is your weight in kilograms divided by your height in meters squared. It’s a quick, free screening number that doctors and researchers use worldwide to spot weight-related health risks across large groups of people.
Your BMI divided by 25, the top of the healthy range. A BMI Prime of 1.00 is right at the line; 1.20 means 20 percent above it.
Weight divided by height cubed. It’s less skewed for very tall or very short people.
| Category | BMI |
|---|---|
| Underweight | Under 18.5 |
| Healthy weight | 18.5 – 24.9 |
| Overweight | 25 – 29.9 |
| Obesity, class I | 30 – 34.9 |
| Obesity, class II | 35 – 39.9 |
| Obesity, class III | 40 and up |
For children and teens, BMI is read on age- and sex-specific growth charts instead. Ask your pediatrician.
BMI is one number. Pair it with your waist size, your body-fat estimate, your blood pressure and how you feel day to day: your energy, your sleep and how easily you climb stairs or carry groceries.
If your BMI is outside the healthy range, it’s a reason for a friendly chat with your doctor, not a verdict.
Numbers help, but they’re only part of the story. Josh coaches mindset first (he says it’s about 60 percent of the work), then consistency, with lots of variety so training stays fun.
He lost 62 pounds himself in his early 50s, so he knows the hard part isn’t the math. It’s showing up on busy days and getting back on track after a slip. He tracks what matters to you, like strength, energy and how your clothes fit, not just the scale.
For a personal eating plan or a medical diet, Josh will point you to your doctor or a licensed dietitian.
For adults, the World Health Organization calls 18.5 to 24.9 a healthy range. Under 18.5 is underweight, 25 to 29.9 is overweight, and 30 or more is obesity.
It’s a useful screening tool for groups of people, but it can’t tell muscle from fat or show where you carry weight. Pair it with your waist size and a body-fat estimate for a fuller picture.
Muscle weighs more than fat for its size, so strong, athletic people often score higher. A body-fat estimate or waist measurement tells you more.
The adult categories stay the same, but research suggests a BMI slightly above 25 may be fine for adults over 65, and keeping muscle matters more as you age.
No. Children and teens use age- and sex-specific BMI percentiles. Please ask your pediatrician.
No. BMI isn’t meaningful during pregnancy. Talk to your doctor about healthy weight gain for you.
Numbers are a great start. Josh turns them into a plan you can keep, with training and habits built around your life, in the Palm Beach area or online.
