Determine your body mass index with our simple BMI calculator.
Enter your height and weight into the BMI calculator fields. Select units (kg or lbs), then click "Calculate" to get your body mass index. The result shows your body mass category, like normal, overweight, or obese.
BMI is a simple way to check healthy weight using height and weight, but it has limits. It may not account for muscle mass or body composition, which can affect accuracy. For example, older adults or athletes with more muscle might have a higher BMI yet be healthy. Less active people may have more fat, while growing kids are harder to measure accurately. For a personalized assessment, consider consulting a professional.
Track your weight category for personal health goals.
Combine with our Calorie Calculator to plan your diet.
Adjust your fitness routine based on BMI trends.
A BMI calculator quantifies the body mass index by calculating the ratio of weight in kilograms to height in meters squared (m²). With an aid like CalcMate’s tool, health evaluation becomes effortless.
To calculate BMI for women, use our free online calculator by providing your weight and height. The same formula, (weight ÷ height²), applies for everyone. Adults women’s results are analyzed using standard BMI categorizations specific to women.
A BMI calculator for men helps in tracking the body mass index and maintaining personal health. At CalcMate, entering your weight and height instantly calculates your BMI, revealing your category, whether underweight or obese.
Yes, any adult use our tool at any age. For children, particular specialized BMI charts (authored by the CDC) are suggested due to developmental reasons. However, adults only need to input their height and weight to receive their calculated BMI.
As for the BMI Calculator, it uses the typical Body Mass Index formula which is weight in kilograms divided by height in meters squared, or kg/m². This equation created by Adolphe Quetelet allows for a rapid health evaluation based on available data, although it accounts for different body shapes by using general population figures to make the equation applicable to most people. The formula is accepted by the World Health Organization (WHO) for international health evaluations.
To keep track of your general health, checking your BMI every 3–6 months is fine to track any weight changes. If your goals are based on specific fitness or weight goals, then checking it every month may be helpful to track your progress. If you have questions about checking your BMI, consult a healthcare provider for personalized advice about frequency and what the BMI means to your health.
BMI is a general measure that may not represent health the same way for every group of ethnicity or body type. For example, individuals with greater muscle mass or a certain ethnic background may have higher BMI readings with different, or at least less severe, health risks. Use BMI as an initial measure when starting to think about your health, then see a medical professional for a better overall health evaluation.