Navy Height Weight Calculator

Navy Height Weight Calculator – Determine Your Fit :root { –primary-color: #004a99; –success-color: #28a745; –background-color: #f8f9fa; –text-color: #333; –border-color: #ddd; –card-bg: #ffffff; –shadow: 0 2px 5px rgba(0,0,0,0.1); } body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: var(–background-color); color: var(–text-color); margin: 0; padding: 0; line-height: 1.6; } .container { max-width: 1000px; margin: 20px auto; padding: 20px; background-color: var(–card-bg); border-radius: 8px; box-shadow: var(–shadow); } header { background-color: var(–primary-color); color: white; padding: 20px 0; text-align: center; margin-bottom: 20px; border-radius: 8px 8px 0 0; } header h1 { margin: 0; font-size: 2.2em; } .calculator-section { padding: 25px; border: 1px solid var(–border-color); border-radius: 8px; margin-bottom: 30px; } .calculator-section h2 { color: var(–primary-color); margin-top: 0; text-align: center; margin-bottom: 25px; } .input-group { margin-bottom: 20px; text-align: left; } .input-group label { display: block; margin-bottom: 8px; font-weight: bold; color: var(–primary-color); } .input-group input[type="number"], .input-group select { width: calc(100% – 24px); padding: 12px 10px; border: 1px solid var(–border-color); border-radius: 4px; font-size: 1em; box-sizing: border-box; } .input-group input[type="number"]:focus, .input-group select:focus { outline: none; border-color: var(–primary-color); box-shadow: 0 0 0 2px rgba(0, 74, 153, 0.2); } .input-group small { display: block; margin-top: 8px; color: #666; font-size: 0.85em; } .error-message { color: #dc3545; font-size: 0.8em; margin-top: 5px; display: none; /* Hidden by default */ } .error-message.visible { display: block; } .button-group { display: flex; justify-content: space-between; margin-top: 25px; } button { padding: 12px 20px; font-size: 1em; border: none; border-radius: 4px; cursor: pointer; transition: background-color 0.3s ease; font-weight: bold; } .btn-primary { background-color: var(–primary-color); color: white; } .btn-primary:hover { background-color: #003b7f; } .btn-reset { background-color: #ffc107; color: #212529; } .btn-reset:hover { background-color: #e0a800; } .btn-copy { background-color: var(–success-color); color: white; } .btn-copy:hover { background-color: #218838; } .results-section { background-color: var(–primary-color); color: white; padding: 25px; border-radius: 8px; margin-top: 25px; box-shadow: inset var(–shadow); text-align: center; } .results-section h3 { margin-top: 0; font-size: 1.5em; color: #f0f0f0; } .primary-result { font-size: 2.5em; font-weight: bold; margin: 15px 0; padding: 10px; background-color: rgba(255, 255, 255, 0.1); border-radius: 4px; display: inline-block; min-width: 150px; /* Ensure it has some width */ } .intermediate-results span { display: inline-block; margin: 5px 15px; font-size: 1.1em; opacity: 0.9; } .formula-explanation { font-size: 0.9em; margin-top: 15px; opacity: 0.8; border-top: 1px solid rgba(255, 255, 255, 0.2); padding-top: 10px; } .chart-container, .table-container { margin-top: 30px; padding: 20px; border: 1px solid var(–border-color); border-radius: 8px; background-color: var(–card-bg); } caption { font-size: 1.2em; font-weight: bold; margin-bottom: 15px; color: var(–primary-color); text-align: left; } table { width: 100%; border-collapse: collapse; margin-top: 15px; } th, td { padding: 10px; text-align: center; border: 1px solid var(–border-color); } th { background-color: var(–primary-color); color: white; font-weight: bold; } td { background-color: #fdfdfd; } canvas { display: block; width: 100%; max-width: 100%; height: auto; margin: 0 auto; } footer { text-align: center; margin-top: 40px; padding: 20px; font-size: 0.9em; color: #777; } article { margin-top: 40px; background-color: var(–card-bg); padding: 30px; border-radius: 8px; box-shadow: var(–shadow); } article h2, article h3 { color: var(–primary-color); margin-bottom: 15px; } article h2 { font-size: 1.8em; border-bottom: 2px solid var(–primary-color); padding-bottom: 8px; } article h3 { font-size: 1.4em; margin-top: 25px; } article p { margin-bottom: 15px; } article ul, article ol { margin-left: 20px; margin-bottom: 15px; } article li { margin-bottom: 8px; } .internal-links { margin-top: 30px; padding: 20px; background-color: #eef5fa; border-radius: 8px; } .internal-links h3 { color: var(–primary-color); margin-top: 0; font-size: 1.3em; border-bottom: none; } .internal-links ul { list-style: none; padding: 0; margin: 0; } .internal-links li { margin-bottom: 10px; } .internal-links a { color: var(–primary-color); text-decoration: none; font-weight: bold; } .internal-links a:hover { text-decoration: underline; } .internal-links p { font-size: 0.9em; color: #555; margin-top: 5px; } .primary-result.compliant, .primary-result.non-compliant { padding: 15px 25px; font-weight: bold; border-radius: 6px; } .primary-result.compliant { background-color: var(–success-color); color: white; } .primary-result.non-compliant { background-color: #dc3545; color: white; } .primary-result.borderline { background-color: #ffc107; color: #333; } /* Responsive adjustments */ @media (max-width: 768px) { .container { margin: 10px; padding: 15px; } header h1 { font-size: 1.8em; } .calculator-section, .results-section, article, .chart-container, .table-container { padding: 15px; } button { font-size: 0.9em; padding: 10px 15px; } .primary-result { font-size: 2em; } .intermediate-results span { font-size: 1em; margin: 5px 10px; } .button-group { flex-direction: column; gap: 10px; } }

Navy Height Weight Calculator

US Navy Height and Weight Standards Calculator

Your Navy Fitness Status

BMI: — | Category: — | Allowed Range: —
Calculations based on standard BMI formula and US Navy anthropometric standards.

Height vs. Weight Comparison

Navy Anthropometric Data Ranges (Example for Male, see age factor) Height (in) Min Weight (lbs) Max Weight (lbs)

What is the Navy Height Weight Calculator?

The Navy Height Weight Calculator is a specialized tool designed to help individuals assess their physical compliance with the United States Navy's standards for enlistment and continued service. It takes into account your height, weight, and gender to determine if you fall within the acceptable anthropometric ranges established by the Navy. This calculator is crucial for aspiring recruits and current service members to understand the physical requirements that support mission readiness and overall health.

This tool is not merely about meeting a number; it reflects the Navy's commitment to ensuring its personnel are physically capable of performing demanding duties. It's important to note that while this calculator provides a good estimation, the official assessment process involves comprehensive physical examinations and may consider other factors beyond simple height and weight. Misconceptions sometimes arise that meeting these standards is the *only* physical requirement, but it's one component of a broader fitness assessment.

Navy Height Weight Calculator Formula and Mathematical Explanation

The Navy Height Weight Calculator primarily utilizes two key calculations: Body Mass Index (BMI) and comparison against specific Navy anthropometric tables. These tables are gender-specific and often take age into account, though for simplicity, this calculator uses a representative range.

1. Body Mass Index (BMI) Calculation

BMI is a common metric used to estimate body fat based on height and weight. The formula is:

BMI = (Weight in pounds / (Height in inches)^2) * 703

The factor 703 is used to convert the measurement units from metric (kg/m^2) to imperial (lbs/in^2).

2. Navy Anthropometric Standards Comparison

The US Navy maintains detailed tables that define acceptable weight ranges for specific heights and genders. These ranges are often broader than general BMI guidelines to accommodate the physical demands and body types suited for military service. Your calculated weight is compared directly against the allowed minimum and maximum for your recorded height and gender.

The calculator checks:

  • If your weight is below the minimum allowed for your height and gender.
  • If your weight is above the maximum allowed for your height and gender.
  • If your BMI falls within a healthy range (though Navy standards may differ).

The primary result indicates compliance ("Compliant", "Non-Compliant", or "Borderline") based on the Navy's defined ranges.

Variables Table

Variable Meaning Unit Typical Range
Height Individual's vertical stature Inches (in) Male: 62-80
Female: 60-76
Weight Individual's body mass Pounds (lbs) Varies significantly by height and gender
Gender Biological sex Categorical (Male/Female) Male, Female
BMI Body Mass Index kg/m² (converted) Navy standards are complex; BMI helps as a proxy. Healthy range generally 18.5-27.5 but Navy tables are definitive.

Practical Examples (Real-World Use Cases)

Example 1: Aspiring Recruit

Scenario: John is a 22-year-old male, 70 inches tall (5'10"), and weighs 175 pounds. He wants to join the Navy.

  • Inputs: Height = 70 inches, Weight = 175 lbs, Gender = Male
  • Calculation:
    • BMI = (175 / (70 * 70)) * 703 = 25.1
    • Navy Minimum Weight (approx. for 70in male): ~130 lbs
    • Navy Maximum Weight (approx. for 70in male): ~190 lbs
  • Results:
    • Primary Result: Compliant
    • BMI: 25.1 (Within healthy range and Navy acceptable range)
    • Weight Category: Acceptable
    • Allowed Range: 130 – 190 lbs (approximate)
  • Interpretation: John's height and weight are well within the US Navy's acceptable limits for his gender. He meets this specific physical requirement for enlistment.

Example 2: Potential Issue for Female Applicant

Scenario: Sarah is a 19-year-old female, 63 inches tall (5'3″), and weighs 145 pounds. She is concerned about meeting the Navy's standards.

  • Inputs: Height = 63 inches, Weight = 145 lbs, Gender = Female
  • Calculation:
    • BMI = (145 / (63 * 63)) * 703 = 28.5
    • Navy Minimum Weight (approx. for 63in female): ~105 lbs
    • Navy Maximum Weight (approx. for 63in female): ~145 lbs
  • Results:
    • Primary Result: Borderline (At the upper limit)
    • BMI: 28.5 (Considered overweight by general standards)
    • Weight Category: At Maximum Allowed
    • Allowed Range: 105 – 145 lbs (approximate)
  • Interpretation: Sarah is currently at the absolute maximum allowed weight for her height and gender according to typical Navy standards. While technically compliant, she is advised to focus on fitness and potentially lose a few pounds to ensure she remains within standards and has better physical capacity. A slight gain could make her non-compliant.

How to Use This Navy Height Weight Calculator

Using the Navy Height Weight Calculator is straightforward. Follow these steps to get an instant assessment:

  1. Input Height: Enter your height in inches. If you know your height in feet and inches (e.g., 5'10"), convert it to total inches (5 feet * 12 inches/foot + 10 inches = 70 inches).
  2. Input Weight: Enter your current weight in pounds. Ensure accuracy for the best results.
  3. Select Gender: Choose 'Male' or 'Female' from the dropdown menu, as Navy standards differ by gender.
  4. Calculate: Click the "Calculate" button.

Reading Your Results:

  • Primary Result: This is the most crucial indicator. "Compliant" means you meet the basic height/weight requirements. "Non-Compliant" means you exceed the maximum allowed weight or fall below the minimum. "Borderline" indicates you are at the very edge of the acceptable range.
  • BMI: Shows your Body Mass Index. While the Navy relies on its specific tables, a healthy BMI is generally considered beneficial.
  • Weight Category: Provides a quick label (e.g., Acceptable, Over Maximum).
  • Allowed Range: Displays the minimum and maximum weight (in pounds) that are typically acceptable for your height and gender according to Navy standards.

Decision-Making Guidance:

  • Compliant: Excellent! This physical metric is met. Continue focusing on overall fitness for Navy training.
  • Borderline: You are within limits but have little room for weight gain. Consider a fitness plan to strengthen your body composition and ensure long-term compliance.
  • Non-Compliant: You currently do not meet the height/weight standards. Focus on a healthy weight loss plan. Consult with a recruiter for specific guidance on how long you might need to maintain a lower weight before re-evaluation. Remember that Navy standards often have specific windows for acceptable weight loss before disqualification.

Key Factors That Affect Navy Height Weight Results

While the calculator provides a quick check, several underlying factors influence the Navy's actual physical standards and your ability to meet them:

  1. Gender-Specific Standards: Biological differences in body composition mean men and women have different acceptable weight ranges for the same height. The Navy reflects this in its requirements.
  2. Height: This is the primary determinant. The acceptable weight *range* changes significantly with height. Taller individuals generally have higher maximum allowable weights.
  3. Age: Although not a direct input in this simplified calculator, the Navy's standards can sometimes have slight variations or considerations based on age groups, particularly concerning metabolic changes and recovery capacity. The underlying anthropometric tables might be segmented.
  4. Body Composition (Muscle vs. Fat): The Navy's standards, while based on weight, aim for functional fitness. A very muscular individual might be heavier but still highly capable. Conversely, someone who meets the weight requirement but has high body fat might still face challenges. The Navy often uses other body fat assessment methods in conjunction with weight.
  5. Mission Requirements: The standards are designed to ensure sailors can perform the physically demanding tasks required in various naval roles, from operating machinery to responding to emergencies. The height/weight requirements help ensure a baseline level of physical capability and suitability for shipboard environments.
  6. Health and Medical Waivers: Being slightly outside the standard range doesn't automatically disqualify an individual. The Navy may grant waivers based on overall health, fitness levels demonstrated in other tests (like the Physical Fitness Assessment – PFA), and specific job roles. However, significant deviations require strong justification.
  7. Future Fitness Requirements: Meeting initial height/weight standards is just the first step. All Navy personnel must regularly pass the Navy Physical Fitness Assessment (PFA), which includes timed runs, push-ups, curl-ups, and body composition assessments. Staying within weight limits ensures better performance on these tests.
  8. Anthropometric Data Evolution: Like many military branches, the Navy periodically reviews and updates its anthropometric standards based on new research, changing demographics, and evolving operational needs to ensure its force remains combat-ready and healthy.

Frequently Asked Questions (FAQ)

Q1: Does the Navy have a strict BMI requirement?

A1: While BMI is a useful metric and often calculated, the US Navy primarily relies on its specific anthropometric tables that define acceptable weight ranges for different heights and genders. These tables are more definitive than a general BMI calculation. Some individuals might have a BMI above the "healthy" range but still be within Navy standards due to muscle mass.

Q2: What if I'm slightly over the maximum weight for my height?

A2: If you are over the maximum weight, you are currently considered non-compliant. You will need to reduce your weight to fall within the acceptable range. Focus on a consistent, healthy diet and exercise regimen. Consult with a Navy recruiter for guidance on the re-evaluation process and timelines.

Q3: Can I join the Navy if I'm underweight?

A3: Yes, it is possible to be considered underweight according to Navy standards. Like being overweight, being significantly underweight can also be a disqualifying factor. You'll need to gain weight to meet the minimum requirement for your height and gender. This often indicates a need to improve nutrition and potentially strength training.

Q4: Do the height and weight standards change often?

A4: The Navy periodically reviews and updates its physical standards, including height and weight requirements. These updates are based on current research, operational needs, and demographic data. It's always best to refer to the latest official Navy guidance or consult a recruiter for the most current information.

Q5: Does the Navy consider body fat percentage?

A5: Yes. While this calculator focuses on height and weight, the Navy also assesses body fat percentage as part of its overall physical readiness standards. Exceeding body fat limits, even if within weight ranges, can lead to disqualification or require participation in specific programs.

Q6: Are there different standards for different Navy jobs (ratings)?

A6: The basic height and weight standards generally apply across most ratings for initial enlistment. However, specific physically demanding roles might have additional or more stringent fitness requirements that are assessed through the PFA and subsequent training.

Q7: How is height measured in the Navy?

A7: Height is typically measured without shoes. Standardized procedures are used at recruiting stations to ensure consistency. Ensure your self-reported height is accurate.

Q8: What if my weight fluctuates?

A8: Your weight must be within the acceptable range at the time of your physical examination for enlistment. Consistent monitoring and maintaining a healthy lifestyle are key. Relying on temporary measures to meet the standard is not advisable and can lead to issues later.

Related Tools and Internal Resources

© 2023 Navy Height Weight Calculator. All rights reserved.

var heightInput = document.getElementById('height'); var weightInput = document.getElementById('weight'); var genderSelect = document.getElementById('gender'); var heightError = document.getElementById('heightError'); var weightError = document.getElementById('weightError'); var genderError = document.getElementById('genderError'); // Though less likely to error, good practice var primaryResultDisplay = document.getElementById('primaryResult'); var bmiValueDisplay = document.getElementById('bmiValue'); var weightCategoryDisplay = document.getElementById('weightCategory'); var heightRangeDisplay = document.getElementById('heightRange'); var navyDataTableBody = document.getElementById('navyDataTable'); var navyFitChartCanvas = document.getElementById('navyFitChart'); var chartInstance = null; // Navy Standard Data (Simplified for demonstration) // These are approximate and can vary. Always refer to official Navy sources. var navyStandards = { male: [ { height: 60, min: 110, max: 150 }, // 5'0″ { height: 61, min: 113, max: 154 }, { height: 62, min: 116, max: 158 }, { height: 63, min: 120, max: 162 }, { height: 64, min: 123, max: 167 }, { height: 65, min: 127, max: 171 }, { height: 66, min: 130, max: 176 }, // 5'6″ { height: 67, min: 134, max: 180 }, { height: 68, min: 138, max: 185 }, { height: 69, min: 141, max: 189 }, { height: 70, min: 145, max: 194 }, // 5'10" { height: 71, min: 149, max: 199 }, { height: 72, min: 153, max: 204 }, { height: 73, min: 157, max: 209 }, { height: 74, min: 161, max: 214 }, { height: 75, min: 165, max: 219 }, { height: 76, min: 170, max: 225 }, // 6'4″ ], female: [ { height: 58, min: 98, max: 130 }, // 4'10" { height: 59, min: 101, max: 134 }, { height: 60, min: 104, max: 138 }, // 5'0″ { height: 61, min: 107, max: 142 }, { height: 62, min: 110, max: 146 }, { height: 63, min: 113, max: 150 }, // 5'3″ { height: 64, min: 117, max: 155 }, { height: 65, min: 120, max: 159 }, { height: 66, min: 124, max: 164 }, // 5'6″ { height: 67, min: 128, max: 169 }, { height: 68, min: 132, max: 174 }, { height: 69, min: 136, max: 179 }, { height: 70, min: 141, max: 185 }, // 5'10" { height: 71, min: 145, max: 190 }, { height: 72, min: 150, max: 196 }, { height: 73, min: 155, max: 202 }, { height: 74, min: 160, max: 208 }, { height: 75, min: 165, max: 214 }, // 6'3″ ] }; function findNavyRange(height, gender) { var standards = navyStandards[gender]; if (!standards) return { min: null, max: null }; // Find the closest matching height or interpolate if needed var lowerBound = null; var upperBound = null; for (var i = 0; i < standards.length; i++) { if (standards[i].height === height) { return { min: standards[i].min, max: standards[i].max }; } if (standards[i].height height) { upperBound = standards[i]; break; // Found the first height greater than input } } if (lowerBound && upperBound) { // Interpolate var heightDiff = upperBound.height – lowerBound.height; var weightDiff = upperBound.max – lowerBound.max; // Interpolate max var minWeightDiff = upperBound.min – lowerBound.min; // Interpolate min var proportion = (height – lowerBound.height) / heightDiff; var interpolatedMax = lowerBound.max + (proportion * weightDiff); var interpolatedMin = lowerBound.min + (proportion * minWeightDiff); return { min: Math.round(interpolatedMin), max: Math.round(interpolatedMax) }; } else if (lowerBound) { // Input height is greater than the largest in the table return { min: lowerBound.min, max: lowerBound.max }; } else if (upperBound) { // Input height is smaller than the smallest in the table return { min: upperBound.min, max: upperBound.max }; } return { min: null, max: null }; // Should not happen with reasonable data } function validateInput(value, errorElement, min, max) { var numValue = parseFloat(value); if (isNaN(numValue)) { errorElement.textContent = "Please enter a valid number."; errorElement.classList.add('visible'); return false; } if (numValue <= 0) { errorElement.textContent = "Value must be positive."; errorElement.classList.add('visible'); return false; } if (min !== undefined && numValue max) { errorElement.textContent = "Value is too high."; errorElement.classList.add('visible'); return false; } errorElement.textContent = ""; errorElement.classList.remove('visible'); return true; } function calculateNavyFit() { var height = parseFloat(heightInput.value); var weight = parseFloat(weightInput.value); var gender = genderSelect.value; var isHeightValid = validateInput(heightInput.value, heightError, 1, 120); // Min 1 inch, Max 10 feet var isWeightValid = validateInput(weightInput.value, weightError, 1, 1000); // Min 1 lb, Max 1000 lbs if (!isHeightValid || !isWeightValid) { clearResults(); return; } // Calculate BMI var bmi = (weight / (height * height)) * 703; bmiValueDisplay.textContent = "BMI: " + bmi.toFixed(1); // Get Navy specific weight range var navyRange = findNavyRange(height, gender); var minWeight = navyRange.min; var maxWeight = navyRange.max; var rangeText = "–"; if (minWeight !== null && maxWeight !== null) { rangeText = minWeight + " – " + maxWeight + " lbs"; } heightRangeDisplay.textContent = "Allowed Range: " + rangeText; var status = ""; var statusMessage = ""; var weightCategory = ""; if (minWeight !== null && maxWeight !== null) { if (weight maxWeight) { status = "NON-COMPLIANT"; statusMessage = "Over Maximum Weight"; weightCategory = "Overweight"; primaryResultDisplay.classList.add('non-compliant'); primaryResultDisplay.classList.remove('compliant', 'borderline'); } else if (weight >= minWeight && weight (maxWeight – borderlineThreshold)) { status = "BORDERLINE"; primaryResultDisplay.classList.add('borderline'); primaryResultDisplay.classList.remove('compliant', 'non-compliant'); } } else { status = "N/A"; statusMessage = "Standards not available for this height/gender combination."; weightCategory = "Unknown"; primaryResultDisplay.classList.remove('compliant', 'non-compliant', 'borderline'); } primaryResultDisplay.textContent = status; weightCategoryDisplay.textContent = "Category: " + weightCategory; updateChart(height, weight, gender, minWeight, maxWeight); populateTable(gender); } function clearResults() { primaryResultDisplay.textContent = "–"; bmiValueDisplay.textContent = "BMI: –"; weightCategoryDisplay.textContent = "Category: –"; heightRangeDisplay.textContent = "Allowed Range: –"; primaryResultDisplay.className = 'primary-result'; // Reset classes if (chartInstance) { chartInstance.destroy(); chartInstance = null; } navyDataTableBody.innerHTML = "; // Clear table } function resetCalculator() { heightInput.value = "70"; // Example default for male weightInput.value = "170"; // Example default genderSelect.value = "male"; clearResults(); calculateNavyFit(); // Recalculate with defaults } function copyResults() { var resultText = "Navy Height Weight Calculation:\n"; resultText += "———————————-\n"; resultText += "Status: " + primaryResultDisplay.textContent + "\n"; resultText += primaryResultDisplay.classList.contains('compliant') ? "(Compliant)\n" : primaryResultDisplay.classList.contains('non-compliant') ? "(Non-Compliant)\n" : primaryResultDisplay.classList.contains('borderline') ? "(Borderline)\n" : "\n"; resultText += "Height: " + heightInput.value + " inches\n"; resultText += "Weight: " + weightInput.value + " lbs\n"; resultText += "Gender: " + genderSelect.value + "\n"; resultText += "———————————-\n"; resultText += bmiValueDisplay.textContent + "\n"; resultText += weightCategoryDisplay.textContent + "\n"; resultText += heightRangeDisplay.textContent + "\n"; resultText += "\nKey Assumptions:\n"; resultText += "- Calculations based on US Navy anthropometric standards (simplified).\n"; resultText += "- Age is not a direct factor in this simplified model.\n"; resultText += "- Does not account for body fat percentage or specific job requirements.\n"; var textArea = document.createElement("textarea"); textArea.value = resultText; document.body.appendChild(textArea); textArea.select(); try { document.execCommand('copy'); alert("Results copied to clipboard!"); } catch (err) { console.error('Unable to copy text: ', err); alert("Failed to copy results. Please copy manually."); } textArea.remove(); } function populateTable(gender) { var standards = navyStandards[gender]; if (!standards) return; var tableHTML = "; // Display a subset for clarity, e.g., every 5 inches for (var i = 0; i < standards.length; i++) { if (i % 3 === 0) { // Show roughly every 3 entries tableHTML += ''; tableHTML += '' + standards[i].height + ''; tableHTML += '' + standards[i].min + ''; tableHTML += '' + standards[i].max + ''; tableHTML += ''; } } // Ensure last entry is always shown if not caught by modulo if (standards.length > 0 && (standards.length -1) % 3 !== 0) { tableHTML += ''; tableHTML += '' + standards[standards.length-1].height + ''; tableHTML += '' + standards[standards.length-1].min + ''; tableHTML += '' + standards[standards.length-1].max + ''; tableHTML += ''; } navyDataTableBody.innerHTML = tableHTML; } function updateChart(currentHeight, currentWeight, gender, minNavyWeight, maxNavyWeight) { var ctx = navyFitChartCanvas.getContext('2d'); // Destroy previous chart instance if it exists if (chartInstance) { chartInstance.destroy(); } var chartData = { labels: [], datasets: [] }; var navyData = navyStandards[gender] || []; // Prepare dataset for Navy Standard Range var minWeights = []; var maxWeights = []; var heightLabels = []; for (var i = 0; i < navyData.length; i++) { heightLabels.push(navyData[i].height); minWeights.push(navyData[i].min); maxWeights.push(navyData[i].max); } chartData.labels = heightLabels; chartData.datasets.push({ label: 'Navy Min Weight', data: minWeights, borderColor: 'rgba(255, 99, 132, 1)', backgroundColor: 'rgba(255, 99, 132, 0.2)', fill: false, borderWidth: 1, pointRadius: 0 // Hide points on the line }); chartData.datasets.push({ label: 'Navy Max Weight', data: maxWeights, borderColor: 'rgba(54, 162, 235, 1)', backgroundColor: 'rgba(54, 162, 235, 0.2)', fill: false, borderWidth: 1, pointRadius: 0 // Hide points on the line }); // Add current user data point chartData.datasets.push({ label: 'Your Data', data: [{ x: currentHeight, y: currentWeight }], borderColor: 'rgba(75, 192, 192, 1)', backgroundColor: 'rgba(75, 192, 192, 1)', type: 'scatter', // Use scatter for a single point pointRadius: 8, pointHoverRadius: 10, order: 1 // Ensure scatter point is drawn on top }); // Adjust chart options for clarity var options = { responsive: true, maintainAspectRatio: true, scales: { x: { title: { display: true, text: 'Height (inches)' }, min: Math.min(…heightLabels) – 2, // Adjust padding max: Math.max(…heightLabels) + 2 }, y: { title: { display: true, text: 'Weight (pounds)' }, min: 80, // Ensure reasonable minimum max: 250 // Ensure reasonable maximum } }, plugins: { title: { display: true, text: 'US Navy Acceptable Weight Ranges by Height (' + gender.charAt(0).toUpperCase() + gender.slice(1) + ')' }, tooltip: { callbacks: { label: function(context) { var label = context.dataset.label || ''; if (label) { label += ': '; } if (context.parsed.x !== undefined && context.parsed.y !== undefined) { if (label.includes('Your Data')) { label += `Height: ${context.parsed.x} in, Weight: ${context.parsed.y} lbs`; } else if (context.dataset.label.includes('Min') || context.dataset.label.includes('Max')) { label += `Height: ${context.parsed.x} in, Weight: ${context.parsed.y} lbs`; } else { label += `${context.parsed.y} lbs`; } } return label; } } } } }; // Create the chart chartInstance = new Chart(ctx, { type: 'line', // Base type is line for ranges data: chartData, options: options }); } // Initial population and calculation on load document.addEventListener('DOMContentLoaded', function() { populateTable(genderSelect.value); calculateNavyFit(); }); // Add event listeners for real-time updates heightInput.addEventListener('input', calculateNavyFit); weightInput.addEventListener('input', calculateNavyFit); genderSelect.addEventListener('change', function() { populateTable(this.value); // Update table when gender changes calculateNavyFit(); // Recalculate with new gender standards }); // — Simple Chart.js integration — // NOTE: In a real-world scenario, you'd include Chart.js library via CDN or local file. // For this self-contained HTML, we'll assume Chart.js is available globally. // If running this standalone, uncomment the line below and add the Chart.js CDN to the . // // Fallback if Chart.js is not loaded (e.g., when running standalone without CDN) if (typeof Chart === 'undefined') { console.warn("Chart.js library not found. Charts will not be displayed."); // Optionally hide chart elements or show a message var chartContainer = document.querySelector('.chart-container'); if (chartContainer) { chartContainer.innerHTML = "

Chart Unavailable

Chart.js library is required for dynamic charts.

"; } }

Leave a Comment