Calculate your BMI, body fat percentage, ideal weight, and get personalized health recommendations with our comprehensive health metrics calculator.
Comprehensive health metrics and personalized recommendations
Optional measurements for body fat calculation
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Get instant BMI, ideal weight, and personalized recommendations
Input your height and weight using either metric (cm/kg) or imperial (feet-inches/pounds) units. The tool detects your preference and converts between systems automatically.
For a more comprehensive health profile, enter your age, gender, and activity level. These additional inputs unlock body fat estimation, BMR calculation, TDEE, and personalized recommendations.
See your BMI score with its WHO classification (underweight, normal, overweight, obese), along with your ideal weight range, estimated body fat percentage, and daily caloric needs.
Read personalized health tips based on your results, including suggested water intake, protein needs, and general wellness guidance. Use these as a starting point for conversations with your healthcare provider.
Calculates Body Mass Index using the standard formula and maps it to World Health Organization classifications. Results include a visual gauge showing where you fall on the BMI spectrum.
Estimates body fat percentage using validated formulas based on your BMI, age, and gender. While not as precise as clinical measurements, it provides a useful general indicator.
Computes your Basal Metabolic Rate (calories burned at rest) and Total Daily Energy Expenditure based on your activity level. Essential numbers for anyone managing their nutrition.
Shows your ideal weight range based on height using multiple established formulas. This gives a realistic target range rather than a single number, accounting for different body types.
Provides general health risk information associated with your BMI category. Clearly notes that BMI is a screening tool, not a diagnostic measure, and recommends professional consultation.
Works with both metric and imperial units. Enter your height in centimeters or feet and inches, and your weight in kilograms or pounds. Switch between systems at any time.
Individuals monitoring their weight and fitness use BMI calculators as a quick screening tool. While BMI does not measure body fat directly and has limitations for muscular individuals, it remains one of the most widely used indicators for assessing whether weight falls within a healthy range for a given height. The additional metrics like body fat estimation and ideal weight range provide a more complete picture.
Fitness enthusiasts and people on weight management programs use the BMR and TDEE calculations to set appropriate calorie targets. Knowing your daily energy expenditure helps determine whether you need a calorie surplus for muscle building or a deficit for fat loss. The protein and water intake recommendations support informed nutritional planning.
Health educators and wellness coaches use BMI calculators as conversation starters about body composition and healthy habits. The tool presents results with appropriate context, emphasizing that BMI is a screening tool rather than a definitive health assessment. This responsible framing supports informed discussions between clients and healthcare providers.
BMI is calculated by dividing your weight in kilograms by the square of your height in meters (kg/m2). For imperial units, the formula is weight in pounds multiplied by 703, divided by height in inches squared. The result is a single number that corresponds to a weight category.
The WHO defines four main categories: underweight (below 18.5), normal weight (18.5 to 24.9), overweight (25 to 29.9), and obese (30 and above). The obese category is further divided into Class I (30-34.9), Class II (35-39.9), and Class III (40+).
BMI has limitations. It does not distinguish between muscle and fat, so athletes and bodybuilders may show a high BMI despite being healthy. It also does not account for age, gender, ethnicity, or body fat distribution. It is best used as a general screening tool alongside other health metrics.
Basal Metabolic Rate (BMR) is the number of calories your body burns at rest to maintain basic functions like breathing, circulation, and cell production. It typically accounts for 60-75% of daily calorie expenditure. Knowing your BMR helps set realistic nutrition goals for weight management.
Yes, if your BMI falls outside the normal range or if you have concerns about your weight and health. BMI is a screening tool, not a medical diagnosis. A healthcare provider can perform additional assessments including body composition analysis, blood work, and a full health evaluation to give you personalized guidance.