When to Use This BMI Calculator

Underweight (&lt;18.5): May indicate nutritional deficiency or health issues. Consult a healthcare provider.
Normal weight (18.5-24.9): Indicates a healthy weight range. Maintain through balanced diet and regular exercise.
Overweight (25-29.9): May increase health risks. Consider lifestyle changes with professional guidance.
Obese (&ge;30): Significantly increases health risks. Seek professional medical advice for a personalized plan.

Our free BMI calculator helps you monitor your health and wellness:

Personal Health Monitoring
Track your body mass index regularly to monitor weight changes and maintain a healthy lifestyle.
Fitness Goals
Set realistic weight loss or gain targets based on your current BMI and health category.
Medical Consultations
Prepare for doctor visits with accurate BMI measurements to discuss health and wellness plans.
Pregnancy Planning
Monitor BMI before and during pregnancy to ensure optimal health for both mother and baby.
Sports & Athletics
Athletes and sports enthusiasts can track body composition changes as part of their training regimen.

Frequently Asked Questions

What is a healthy BMI range?: According to WHO guidelines, a healthy BMI is between 18.5 and 24.9. Below 18.5 is underweight, 25-29.9 is overweight, and 30+ is considered obese. These are general guidelines.
Is BMI accurate for everyone?: BMI has limitations. It doesn't distinguish between muscle and fat, so athletes may show high BMI despite being healthy. Age, gender, and ethnicity can also affect interpretation.
Should I use metric or imperial units?: Use whichever system you're comfortable with. Our calculator supports both and produces the same accurate BMI result regardless of which unit system you choose.
How often should I check my BMI?: Checking BMI monthly or quarterly is reasonable for tracking weight management goals. For general health monitoring, annual checks during regular medical appointments are typically sufficient.
Is this BMI calculator a substitute for medical advice?: No. BMI is a screening tool only, not a diagnostic measure. Always consult healthcare professionals for personalized health assessments, especially before making lifestyle changes.