Weight Converter

Convert between units and calculate health metrics

BMI & Health Calculators

Body Mass Index (BMI) = Weight (kg) / (Height (m) × Height (m))

BMI is a simple index of weight-for-height commonly used to classify weight categories.

Why Weight and BMI Calculations Matter:

Health calculators like our weight converter and BMI calculator are popular because:

  • People track weight loss/gain progress with weight calculators
  • Healthcare professionals use body mass index to assess health risks
  • Fitness enthusiasts rely on macro calculators for nutrition planning
  • Those managing weight use calorie deficit calculators for diet planning

BMI Categories:

Underweight

BMI less than 18.5. May indicate nutritional deficiency.

Normal weight

BMI 18.5-24.9. Associated with lowest health risks.

Overweight

BMI 25-29.9. Increased risk for health problems.

Obesity

BMI 30 or higher. High risk for serious conditions.

Understanding Weight, BMI, and Health Metrics

A weight converter is an essential tool for anyone tracking their health, fitness, or nutrition. Whether you're converting pounds to kilograms for medical purposes or stones to pounds for personal tracking, accurate conversions are crucial.

The BMI calculator (Body Mass Index) provides a quick assessment of whether your weight is in a healthy range for your height. While BMI doesn't measure body fat directly, it correlates well with more direct measures and is widely used by healthcare professionals.

For those focused on nutrition, a macro calculator helps determine the optimal balance of proteins, fats, and carbohydrates for your goals, whether that's weight loss, muscle gain, or maintenance.

The calorie calculator to lose weight estimates your daily energy needs and suggests an appropriate calorie deficit for safe, sustainable weight loss. Combined with our weight loss calculator, you can track progress toward your goals.

Women often use specialized BMI calculator women tools that account for typical body composition differences. Remember that all these calculators provide estimates - individual needs may vary based on muscle mass, metabolism, and other factors.

Disclaimer

This weight converter and BMI calculator provide estimates based on standard formulas. BMI is a screening tool but not a diagnostic of body fatness or health. Results from our calculators should not replace professional medical advice. Individual health depends on many factors including diet, physical activity, family history, and more. Always consult with a healthcare provider before making changes to your diet or exercise regimen.

How Our Weight Converter Works

Enter Your Weight

Input your weight value and select the current unit (pounds, kilograms, stones, or ounces).

Choose Target Unit

Select the unit you want to convert to. Our tool supports all common weight measurements.

Get Health Insights

Receive converted weight plus BMI calculation and health recommendations if height is provided.