Calculate your Body Mass Index to understand where you fall on the weight spectrum. Toggle between imperial and metric units for easy input.
Your BMI
23.6
Category
Normal weight
Underweight: <18.5 | Normal: 18.5–24.9 | Overweight: 25–29.9 | Obese: 30+
Underweight
<–18.5
Normal
18.5–25
Overweight
25–30
Obese
30–40+
Height: 175 cm (5 ft 9 in)
Min Healthy Weight
125 lbs
56.8 kg
Max Healthy Weight
169 lbs
76.5 kg
You are within the healthy range
A BMI between 18.5 and 24.9 is considered a healthy weight range. This range is associated with lower risk of weight-related health issues.
Health Considerations
Recommendations
Body Mass Index (BMI) is a simple ratio of weight to height used to categorize individuals as underweight, normal weight, overweight, or obese. While it does not directly measure body fat, it correlates with more precise body fat measurements and is widely used for population-level health screening. For a more complete picture of your health, combine BMI with waist circumference, activity level, and other clinical assessments.
A BMI between 18.5 and 24.9 is considered normal weight. Below 18.5 is underweight, 25 to 29.9 is overweight, and 30 or above is classified as obese. These ranges apply to most adults but may not be appropriate for athletes, elderly individuals, or pregnant women.
BMI is a useful screening tool but has limitations. It doesn't distinguish between muscle and fat mass, so muscular individuals may have a high BMI despite being healthy. It also doesn't account for fat distribution, age, or ethnicity. Use it as one data point alongside other health metrics.
BMI is calculated by dividing your weight in kilograms by your height in meters squared (kg/m²). For imperial units, the formula is (weight in pounds × 703) / (height in inches)².
Body Fat Calculator
Estimate your body fat percentage using the U.S. Navy method. Enter simple body measurements to get your body fat category and lean mass estimate.
Calorie Deficit Calculator
Calculate your daily calorie needs and optimal deficit for weight loss. Uses the Mifflin-St Jeor equation with your activity level to find your TDEE and target intake.