Overweight Calculator
Determine in seconds whether your current weight is in the healthy, overweight or obese range.
Your BMI: →
Ponderal Index (PI):
📋How to Use Overweight Calculator?
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Select units (kg/cm or lb/inches)
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Enter your current weight and height
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Click “Calculate” to see your BMI and overweight status instantly
The use of the overweight calculator is simple: After choosing the unit of measurement (either kilograms/cms or lbs/in) you would like to use, enter your current height and weight and then click "calculate." Your results will show you your body mass index (BMI), along with where you fall in the World Health Organization's categories of underweight (< 18.5), normal weight (18.5-24.9), overweight (25.0-29.9) and obese (≥ 30).
Useful Tips💡
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Weigh and measure yourself in the morning, without clothes or shoes, for the most consistent results
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Use the same units and conditions each time to accurately track changes over weeks or months
Mistakes to Avoid ⚠️
- Relying only on BMI - muscular people show “overweight” but are healthy.
- Using waist-to-height ratio wrong - waist should be measured at navel.
- Forgetting that Asian populations have higher risk at lower BMI (≥23 vs ≥25).
- Thinking “slightly overweight” is harmless - increases risk of diabetes significantly.
How the Overweight Check Is Calculated
Using the internationally recognised formula of the Body Mass Index (BMI), the calculator divides the weight of a user in kilograms (kg) by the square of their height in metres (m). When users choose to use imperial units for their calculations, the weights and heights entered into the calculator are automatically converted into the metric system by using conversion factors of 1 lb = 0.453592 kg and 1 inch = 0.0254 m. The BMI calculated for all users is compared against the BMI classification thresholds established by the World Health Organisation (WHO) for adults in 1997 and still used globally.
Practical Applications📊
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Monitor progress during weight-loss or fitness programs
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Get a quick health risk screening before a doctor visit
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Track long-term weight trends with consistent measurements
Questions and Answers
What does an overweight calculator do?
An overweight calculator, otherwise known as excess weight calculator or overweight checker, is a calculative device that provides you with your weight status depending on your height and weight based upon BMI level as given in World Health Organisation (WHO) and calculates whether you are in the normal range, overweight (BMI 25.0-29.9) or obese (BMI 30 or above).
How do I know if I am overweight?
Put in your height and weight in the calculator above. If your BMI is between 25.0 and 29.9, you fall under the overweight category; if your BMI is 30.0 or higher, you are classified as obese. These values are exactly the same for adult males and females around the world and have been used by health agencies since 1997.
What is the difference between overweight and obese?
Overweight (BMI between 25.0 and 29.9) has much lower risks of developing serious health problems than people classified as obese (BMI ≥ 30). A higher BMI usually indicates an increased risk of developing type 2 diabetes, high blood pressure (hypertension), coronary artery disease (CAD) and some forms of cancer.
Can teenagers use this overweight calculator?
This calculator was created specifically for adults who are 18 years of age or older. For children and teens (youth), please refer to the World Health Organization or Centers for Disease Control and Prevention for appropriate BMI Percentile Charts that take age and sex into consideration.
Is BMI reliable for very muscular people?
Although BMI is an effective population-based screening tool, it may overestimate body fat on very muscular individuals or athletes, while underestimating body fat on total elderly adults that have a decrease in muscle. Other measures such as waist circumference and body fat percentage may need to be used in conjunction with BMI.
Am I obese or just overweight?
You have an Overweight classification when your BMI falls within the range of 25.0-29.9, and an Obese classification when your BMI is equal to or greater than 30.0 according to international guidelines.
What formula does the overweight calculator use?
The official Formula for Body Mass Index is used and adopted by the World Health Organization as BMI = weight (kg)/(height (m)[2]). When using pounds and inches the equivalent Formula is BMI = 703 × weight (lb)÷ (height (in)(2)). These two formulas derived from the work of Adolphe Quetelet have been the internationally accepted standards for classification of Weight Status since their full validation in 1997 through extensive validation studies of large samples of diverse populations.