Calculate Your Body Mass Index Instantly & Get Personalized Health Tips
BMI, or Body Mass Index, is a simple calculation using a person's height and weight to estimate body fat. The formula is BMI = kg/m² where kg is a person's weight in kilograms and m² is their height in meters squared.
While BMI is a useful screening tool, it's important to note that it doesn't directly measure body fat percentage. Factors like muscle mass, bone density, overall body composition, and racial and sex differences can affect the relationship between BMI and body fat.
May indicate malnutrition, eating disorder, or other health problems. Consult a healthcare provider.
Indicates a healthy weight range. Maintain through balanced diet and regular exercise.
May increase risk of health conditions. Consider lifestyle changes and consult healthcare provider.
Significantly increases health risks. Professional medical guidance strongly recommended.
Understanding your BMI helps you become more aware of your overall health status and potential risks.
Set realistic weight management goals based on your current BMI and target healthy range.
Maintaining a healthy BMI reduces risk of heart disease, diabetes, and other chronic conditions.
Monitor your weight management journey and celebrate milestones along the way.
Use this chart to find your BMI based on your height and weight:
| Height (cm) | Underweight (<18.5) | Normal (18.5-24.9) | Overweight (25-29.9) | Obese (≥30) |
|---|---|---|---|---|
| 150 | <42 kg | 42-56 kg | 56-67 kg | ≥68 kg |
| 160 | <47 kg | 47-64 kg | 64-77 kg | ≥77 kg |
| 170 | <53 kg | 53-72 kg | 72-87 kg | ≥87 kg |
| 180 | <60 kg | 60-81 kg | 81-97 kg | ≥97 kg |
| 190 | <67 kg | 67-90 kg | 90-108 kg | ≥108 kg |
BMI is a useful screening tool but not a diagnostic measure. It doesn't account for muscle mass, bone density, or body composition. Athletes with high muscle mass may have high BMI but low body fat. Always consult healthcare professionals for comprehensive health assessment.
A healthy BMI range for most adults is between 18.5 and 24.9. However, ideal BMI can vary based on age, sex, ethnicity, and individual health factors. Consult with your healthcare provider for personalized recommendations.
To improve your BMI: maintain a balanced diet rich in fruits, vegetables, and whole grains; engage in regular physical activity (150 minutes of moderate exercise per week); get adequate sleep; manage stress; and stay hydrated. Always consult healthcare professionals before starting any weight management program.
Yes, BMI for children and teens is calculated differently. It uses age and sex-specific percentiles rather than fixed categories. Children's BMI is compared to other children of the same age and sex. Always consult a pediatrician for children's health assessments.
For general health monitoring, checking BMI once a month is sufficient. If you're actively working on weight management, weekly checks can help track progress. However, focus on overall health improvements rather than just numbers, and consult healthcare providers for personalized monitoring schedules.