Calculate Correct Weight – Loan calculator

Ideal Weight Calculator

Height:

feet inches

Current Weight:

lbs kg

Gender: Male Female

Your Ideal Weight Analysis:

function calculateIdealWeight() { var heightFeet = parseFloat(document.getElementById('heightFeet').value); var heightInches = parseFloat(document.getElementById('heightInches').value); var currentWeight = parseFloat(document.getElementById('currentWeight').value); var weightUnit = document.getElementById('weightUnit').value; var gender = document.getElementById('gender').value; var resultDiv = document.getElementById('result'); var currentBmiResult = document.getElementById('currentBmiResult'); var bmiCategory = document.getElementById('bmiCategory'); var idealWeightRangeResult = document.getElementById('idealWeightRangeResult'); var devineIdealWeightResult = document.getElementById('devineIdealWeightResult'); // Input validation if (isNaN(heightFeet) || isNaN(heightInches) || isNaN(currentWeight) || heightFeet < 0 || heightInches 11 || currentWeight <= 0) { resultDiv.style.display = 'block'; resultDiv.style.backgroundColor = '#f8d7da'; resultDiv.style.borderColor = '#f5c6cb'; resultDiv.style.color = '#721c24'; resultDiv.innerHTML = '

Error:

Please enter valid positive numbers for height and weight.'; return; } // Convert height to meters for BMI calculation var totalInches = (heightFeet * 12) + heightInches; var heightMeters = totalInches * 0.0254; // 1 inch = 0.0254 meters // Convert current weight to kg if in lbs var currentWeightKg = currentWeight; if (weightUnit === 'lbs') { currentWeightKg = currentWeight * 0.453592; // 1 lb = 0.453592 kg } // Calculate BMI var bmi = currentWeightKg / (heightMeters * heightMeters); var bmiCategoryText = "; if (bmi = 18.5 && bmi = 24.9 && bmi < 29.9) { bmiCategoryText = 'Overweight'; } else { bmiCategoryText = 'Obese'; } // Calculate Ideal Weight Range (BMI 18.5 to 24.9) var minIdealWeightKg = 18.5 * (heightMeters * heightMeters); var maxIdealWeightKg = 24.9 * (heightMeters * heightMeters); // Calculate Ideal Body Weight using Devine Formula var devineIdealWeightKg; var heightOver5FeetInches = Math.max(0, totalInches – 60); // 60 inches = 5 feet if (gender === 'male') { devineIdealWeightKg = 50 + (2.3 * heightOver5FeetInches); } else { // female devineIdealWeightKg = 45.5 + (2.3 * heightOver5FeetInches); } // Display results resultDiv.style.display = 'block'; resultDiv.style.backgroundColor = '#e9f7ef'; resultDiv.style.borderColor = '#d4edda'; resultDiv.style.color = '#155724'; currentBmiResult.innerHTML = 'Your Current BMI: ' + bmi.toFixed(1) + ''; bmiCategory.innerHTML = 'BMI Category: ' + bmiCategoryText + ''; idealWeightRangeResult.innerHTML = 'Healthy BMI Weight Range: ' + minIdealWeightKg.toFixed(1) + ' kg (' + (minIdealWeightKg / 0.453592).toFixed(1) + ' lbs) to ' + maxIdealWeightKg.toFixed(1) + ' kg (' + (maxIdealWeightKg / 0.453592).toFixed(1) + ' lbs)'; devineIdealWeightResult.innerHTML = 'Estimated Ideal Body Weight (Devine Formula): ' + devineIdealWeightKg.toFixed(1) + ' kg (' + (devineIdealWeightKg / 0.453592).toFixed(1) + ' lbs)'; }

Understanding Your Ideal Weight

The concept of a "correct" or "ideal" weight is often misunderstood. There isn't a single magic number that applies to everyone. Instead, health professionals typically refer to a healthy weight range that is associated with a lower risk of weight-related health problems.

Body Mass Index (BMI)

The most widely used tool to assess whether your weight is healthy in relation to your height is the Body Mass Index (BMI). BMI is a simple calculation using your weight and height:

BMI = weight (kg) / [height (m)]²

The BMI categories are generally:

Underweight: BMI less than 18.5
Healthy Weight: BMI between 18.5 and 24.9
Overweight: BMI between 25 and 29.9
Obese: BMI of 30 or greater

Our calculator provides your current BMI and also shows you the weight range that corresponds to a "Healthy Weight" BMI (18.5 to 24.9) for your height.

Limitations of BMI

While BMI is a useful screening tool, it has limitations. It doesn't directly measure body fat and can sometimes misclassify individuals. For example:

Muscular individuals: Athletes or very muscular people might have a high BMI due to muscle mass, not excess fat, placing them in the "overweight" category even if they are very lean.
Elderly individuals: Older adults may have less muscle mass, leading to a "healthy" BMI even with higher body fat percentages.
Ethnicity: Some ethnic groups may have different healthy BMI ranges.

Ideal Body Weight (IBW) Formulas

Another approach to estimating a "correct" weight is through Ideal Body Weight (IBW) formulas. These formulas provide a single target weight based on height and gender. One common formula is the Devine Formula:

For Men: 50 kg + 2.3 kg for each inch over 5 feet
For Women: 45.5 kg + 2.3 kg for each inch over 5 feet

These formulas were originally developed for medication dosage calculations and are not perfect indicators of health, but they offer another perspective on a potential target weight.

How to Use the Calculator

Enter your Height: Input your height in feet and inches.
Enter your Current Weight: Input your current weight and select the correct unit (lbs or kg).
Select your Gender: Choose Male or Female from the dropdown.
Click "Calculate Ideal Weight": The calculator will instantly display your current BMI, your BMI category, the healthy weight range for your height, and an estimated ideal body weight using the Devine Formula.

Important Considerations

Remember that these calculations are estimates. Your overall health is influenced by many factors beyond just weight, including diet, physical activity, body composition (muscle vs. fat), genetics, and medical history. It's always best to consult with a healthcare professional or a registered dietitian to determine what a healthy weight and lifestyle mean for you personally.

This calculator is for informational purposes only and should not be used as a substitute for professional medical advice.