College Wrestling Weight Certification Calculator

College Wrestling Weight Certification Calculator – NCAA & NAIA Guidelines body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; background-color: #f8f9fa; margin: 0; padding: 0; } .container { max-width: 1000px; margin: 30px auto; padding: 25px; background-color: #ffffff; border-radius: 8px; box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1); display: flex; flex-direction: column; align-items: center; } h1, h2, h3 { color: #004a99; text-align: center; margin-bottom: 20px; } h1 { font-size: 2.2em; margin-bottom: 10px; } .subtitle { font-size: 1.1em; color: #555; text-align: center; margin-bottom: 30px; } .calculator-section { width: 100%; max-width: 700px; margin-bottom: 30px; padding: 25px; border: 1px solid #e0e0e0; border-radius: 8px; background-color: #fdfdfd; } .input-group { margin-bottom: 20px; width: 100%; } .input-group label { display: block; margin-bottom: 8px; font-weight: 600; color: #004a99; } .input-group input[type="number"], .input-group select { width: calc(100% – 20px); padding: 12px; border: 1px solid #ccc; border-radius: 4px; font-size: 1em; box-sizing: border-box; } .input-group input[type="number"]:focus, .input-group select:focus { border-color: #004a99; outline: none; box-shadow: 0 0 0 2px rgba(0, 74, 153, 0.2); } .input-group .helper-text { font-size: 0.85em; color: #666; margin-top: 5px; display: block; } .input-group .error-message { color: #dc3545; font-size: 0.8em; margin-top: 5px; display: none; /* Hidden by default */ } .button-group { display: flex; justify-content: space-between; margin-top: 25px; } button { padding: 12px 20px; border: none; border-radius: 5px; cursor: pointer; font-size: 1em; font-weight: 600; transition: background-color 0.3s ease, transform 0.2s ease; } button.primary { background-color: #004a99; color: white; } button.primary:hover { background-color: #003a7f; transform: translateY(-2px); } button.secondary { background-color: #6c757d; color: white; } button.secondary:hover { background-color: #5a6268; transform: translateY(-2px); } button.copy { background-color: #ffc107; color: #212529; } button.copy:hover { background-color: #e0a800; transform: translateY(-2px); } .result-section { width: 100%; max-width: 700px; margin-top: 30px; padding: 25px; border: 1px solid #e0e0e0; border-radius: 8px; background-color: #f8f9fa; text-align: center; } #result-primary { font-size: 2.5em; font-weight: bold; color: #28a745; margin-bottom: 15px; padding: 15px; background-color: #eaf7ee; border-radius: 6px; display: inline-block; } .intermediate-results p { margin: 8px 0; font-size: 1.1em; color: #004a99; } .intermediate-results span { font-weight: bold; } .formula-explanation { font-size: 0.9em; color: #555; margin-top: 20px; border-top: 1px dashed #ccc; padding-top: 15px; } .chart-container { width: 100%; max-width: 700px; margin-top: 30px; padding: 25px; border: 1px solid #e0e0e0; border-radius: 8px; background-color: #fff; text-align: center; } canvas { max-width: 100%; height: auto; } .chart-caption { font-size: 0.9em; color: #555; margin-top: 15px; } table { width: 100%; border-collapse: collapse; margin-top: 25px; font-size: 0.95em; } th, td { border: 1px solid #ddd; padding: 10px; text-align: left; } th { background-color: #004a99; color: white; font-weight: bold; } tr:nth-child(even) { background-color: #f2f2f2; } .table-caption { font-size: 0.9em; color: #555; margin-bottom: 15px; caption-side: top; text-align: center; } .article-section { margin-top: 40px; padding: 30px; background-color: #fff; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); } .article-section h2, .article-section h3 { text-align: left; color: #004a99; margin-bottom: 15px; } .article-section p, .article-section ul, .article-section ol { margin-bottom: 20px; color: #333; } .article-section ul, .article-section ol { padding-left: 25px; } .article-section li { margin-bottom: 10px; } .faq-item { margin-bottom: 15px; } .faq-item h4 { margin-bottom: 5px; color: #004a99; font-size: 1.1em; text-align: left; } .faq-item p { margin-bottom: 0; color: #555; } a { color: #004a99; text-decoration: none; transition: color 0.3s ease; } a:hover { color: #003a7f; text-decoration: underline; } .internal-links-list { list-style: none; padding: 0; } .internal-links-list li { margin-bottom: 15px; } .internal-links-list a { font-weight: bold; } .internal-links-list p { font-size: 0.9em; color: #666; margin-top: 5px; margin-bottom: 0; } .highlight { color: #28a745; font-weight: bold; } @media (max-width: 768px) { .container { margin: 15px; padding: 15px; } h1 { font-size: 1.8em; } .subtitle { font-size: 1em; } button { padding: 10px 15px; font-size: 0.95em; } }

College Wrestling Weight Certification Calculator

Determine your eligibility based on NCAA and NAIA body fat percentage and weight guidelines.

Wrestling Weight Certification Calculator

Enter weight in pounds (lbs).
Enter current body fat percentage.
NCAA NAIA Select the governing body for your competition.
Enter the target weight class you wish to compete in.

Certification Results

Lean Body Mass: lbs

Maximum Allowed Fat Mass: lbs

Minimum Required Lean Mass: lbs

How it's calculated:
1. Lean Body Mass (LBM) = Current Weight * (1 – (Body Fat Percentage / 100))
2. Maximum Allowed Fat Mass = Current Weight * (Body Fat Percentage / 100)
3. Minimum Required Lean Mass = Desired Weight Class * (1 – (Max Allowed Body Fat % / 100))
For NCAA, the maximum body fat percentage allowed is 15% for most divisions. For NAIA, it's also typically 15%.

Weight Certification Trend Analysis

Comparison of required lean mass vs. wrestler's current lean mass at different body fat percentages for the selected weight class.
NCAA & NAIA Standard Body Fat Limits
Organization Maximum Body Fat (%) Minimum Lean Body Mass Factor
NCAA (Divisions I, II, III) 15% 0.85
NAIA 15% 0.85

What is College Wrestling Weight Certification?

College wrestling weight certification is a crucial process designed to ensure fair competition and the health of student-athletes. It involves verifying that a wrestler's body composition – specifically their body fat percentage and lean body mass – meets established standards for their chosen weight class. Governing bodies like the NCAA and NAIA implement these regulations to prevent unhealthy weight cutting practices and maintain a level playing field. Understanding these requirements is fundamental for any aspiring collegiate wrestler.

Who should use it: Any high school wrestler aiming for college competition, current college wrestlers needing to track their progress, coaches, and parents involved in the sport. This tool is particularly useful for assessing whether a wrestler's current weight and body fat align with the demands of a specific weight class under official rules.

Common misconceptions: A common misconception is that simply making weight on the day of competition is sufficient. However, modern weight management regulations focus on body composition and safe practices throughout the season. Another misconception is that a single body fat test is the only factor; consistent monitoring and understanding the lean body mass are equally important. Wrestlers might also believe that extreme weight cutting is a necessary evil, overlooking the detrimental health impacts and the focus on sustainable body composition by organizations.

College Wrestling Weight Certification Formula and Mathematical Explanation

The core of college wrestling weight certification relies on calculating a wrestler's Lean Body Mass (LBM) and comparing it against the minimum LBM required for their desired weight class, given the sport's maximum allowable body fat percentage.

Step-by-Step Derivation:

  1. Calculate Lean Body Mass (LBM): This is the portion of a wrestler's body weight that is not fat. The formula is:
    LBM = Current Weight * (1 - (Body Fat Percentage / 100))
  2. Calculate Maximum Allowed Fat Mass: This is the maximum amount of fat a wrestler can carry to be eligible for a specific weight class, based on their *current* weight and body fat.
    Maximum Fat Mass = Current Weight * (Body Fat Percentage / 100)
  3. Determine Minimum Required Lean Mass for the Target Weight Class: This is the most critical calculation for certification. It determines the minimum LBM a wrestler *must* possess to compete at their desired weight class, assuming they adhere to the maximum allowable body fat percentage (typically 15% for NCAA and NAIA).
    Minimum Required LBM = Desired Weight Class * (1 - (Maximum Body Fat % / 100))
  4. Eligibility Check: A wrestler is eligible for a specific weight class if their calculated Lean Body Mass (LBM) from Step 1 is greater than or equal to the Minimum Required Lean Mass calculated in Step 3.

Variable Explanations:

  • Current Weight: The wrestler's body weight at the time of assessment.
  • Body Fat Percentage: The estimated percentage of the wrestler's total body weight that is composed of fat tissue.
  • Desired Weight Class: The specific weight class the wrestler aims to compete in.
  • Maximum Body Fat Percentage: The upper limit of body fat allowed by the governing body (e.g., 15% for NCAA/NAIA).
  • Lean Body Mass (LBM): The total weight of bone, muscle, organs, and connective tissue.
  • Maximum Allowed Fat Mass: The total weight of fat considered acceptable at the wrestler's current weight and body fat level.
  • Minimum Required Lean Mass: The minimum amount of LBM required to be certified for the desired weight class.

Variables Table:

Variable Meaning Unit Typical Range
Current Weight Wrestler's current body mass. lbs 100 – 300+ lbs
Body Fat Percentage Proportion of body mass that is fat. % 5% – 25% (Wrestlers aiming for lower classes often range from 7%-15%)
Desired Weight Class Target weight category for competition. lbs 125 – 285 lbs (depending on division/organization)
Maximum Body Fat % Governing body's limit on body fat. % 15% (standard for NCAA/NAIA)
Lean Body Mass (LBM) Weight excluding fat mass. lbs Calculated value, typically 85%-95% of body weight for wrestlers.
Minimum Required LBM Essential LBM for weight class eligibility. lbs Calculated value, e.g., 110.5 lbs for 130 lb class at 15% BF.

Practical Examples (Real-World Use Cases)

Example 1: NCAA Wrestler aiming for 149 lbs

Scenario: A wrestler currently weighs 155 lbs and has a body fat percentage of 13%. They want to compete in the 149 lb weight class under NCAA rules (max 15% body fat).

Inputs:

  • Current Weight: 155 lbs
  • Body Fat Percentage: 13%
  • Desired Weight Class: 149 lbs
  • Organization: NCAA

Calculations:

  • Lean Body Mass: 155 lbs * (1 – (13 / 100)) = 155 * 0.87 = 134.85 lbs
  • Maximum Allowed Fat Mass: 155 lbs * (13 / 100) = 155 * 0.13 = 20.15 lbs
  • Minimum Required LBM for 149 lbs: 149 lbs * (1 – (15 / 100)) = 149 * 0.85 = 126.65 lbs

Results Interpretation:

  • Primary Result: Eligible (134.85 lbs LBM ≥ 126.65 lbs Minimum Required LBM)
  • Lean Body Mass: 134.85 lbs
  • Maximum Allowed Fat Mass: 20.15 lbs
  • Minimum Required Lean Mass: 126.65 lbs
This wrestler is currently eligible to compete at 149 lbs. They have a comfortable margin of 8.2 lbs of LBM above the minimum requirement, indicating a healthy body composition. They could even gain a small amount of fat mass (up to 20.15 lbs total) or lose weight while maintaining their LBM and still be certified.

Example 2: NAIA Wrestler needing to cut weight

Scenario: A wrestler weighs 160 lbs with 17% body fat. They need to make the 157 lb weight class for NAIA competition (max 15% body fat).

Inputs:

  • Current Weight: 160 lbs
  • Body Fat Percentage: 17%
  • Desired Weight Class: 157 lbs
  • Organization: NAIA

Calculations:

  • Lean Body Mass: 160 lbs * (1 – (17 / 100)) = 160 * 0.83 = 132.8 lbs
  • Maximum Allowed Fat Mass: 160 lbs * (17 / 100) = 160 * 0.17 = 27.2 lbs
  • Minimum Required LBM for 157 lbs: 157 lbs * (1 – (15 / 100)) = 157 * 0.85 = 133.45 lbs

Results Interpretation:

  • Primary Result: Not Eligible (132.8 lbs LBM < 133.45 lbs Minimum Required LBM)
  • Lean Body Mass: 132.8 lbs
  • Maximum Allowed Fat Mass: 27.2 lbs
  • Minimum Required Lean Mass: 133.45 lbs
This wrestler is currently not eligible for the 157 lb weight class because their LBM is 0.65 lbs below the minimum requirement. They have too much fat mass relative to their LBM for this class. To become eligible, they need to either increase their LBM (through muscle gain, which must be done safely and in conjunction with a coach) or decrease their body fat percentage while maintaining or increasing LBM. Simply losing weight without considering LBM might not solve the certification issue. This highlights the importance of the body composition analysis.

How to Use This College Wrestling Weight Certification Calculator

Our College Wrestling Weight Certification Calculator is designed for ease of use, providing quick insights into eligibility. Follow these simple steps:

  1. Enter Current Weight: Input your current body weight in pounds (lbs) into the "Wrestler's Current Weight" field.
  2. Enter Body Fat Percentage: Accurately record your body fat percentage (%). If you don't know it, consult a coach or use reliable measurement methods (e.g., body fat calipers, bioelectrical impedance analysis – BIA).
  3. Select Organization: Choose either "NCAA" or "NAIA" from the dropdown menu, depending on the division you compete under. While their standard maximum body fat is often the same (15%), specific rules can vary slightly.
  4. Enter Desired Weight Class: Specify the weight class (in lbs) you intend to compete in.
  5. Click "Calculate": The calculator will instantly process your inputs.

How to Read Results:

  • Primary Result: This is your overall eligibility status. "Eligible" means your current body composition meets the requirements for the chosen weight class. "Not Eligible" indicates you do not meet the minimum LBM requirement.
  • Lean Body Mass (LBM): Displays your calculated LBM in pounds. This is a key metric for assessing your body's composition.
  • Maximum Allowed Fat Mass: Shows the total pounds of fat you can have at your current weight to potentially meet certification standards (based on the organization's max BF%).
  • Minimum Required Lean Mass: Indicates the minimum LBM needed to be certified for your desired weight class. Compare this number directly to your calculated LBM.

Decision-Making Guidance:

If the calculator shows "Eligible," continue maintaining a healthy body composition. If it shows "Not Eligible," focus on a healthy weight management plan that prioritizes increasing LBM and decreasing fat mass gradually, under the guidance of your coach. This tool helps identify potential issues early, allowing for proactive adjustments rather than last-minute crises. Remember, consistent monitoring is key.

Key Factors That Affect College Wrestling Weight Certification Results

Several factors significantly influence the outcome of college wrestling weight certification, extending beyond simple numerical inputs. Understanding these dynamics is crucial for wrestlers, coaches, and parents aiming for successful certification and competitive performance.

  • Accuracy of Body Fat Measurement: This is paramount. Inaccurate measurements (e.g., using unreliable scales, improper caliper technique) can lead to misleading results. A wrestler might be deemed eligible or ineligible incorrectly, impacting training and competition plans. Consistent measurement protocols are vital.
  • Rate of Weight Loss: NCAA and NAIA have specific guidelines (e.g., the "2% rule" per week in some contexts, though this calculator focuses on body composition) regarding the pace of weight loss. Rapid, unhealthy weight cutting can lead to dehydration, loss of muscle mass, and health risks, potentially failing certification or harming performance. This calculator assumes a snapshot of current body composition, but the *method* of achieving it matters.
  • Muscle Mass vs. Fat Mass Ratio: The core of certification is the LBM. A wrestler might be slightly overweight but possess high muscle mass, making them eligible. Conversely, a lighter wrestler with a higher body fat percentage might fall short. Strength and conditioning programs are critical for optimizing this ratio.
  • Hydration Status: Dehydration can temporarily lower body weight but does not significantly reduce LBM or fat mass. It can, however, skew body fat measurements depending on the method used. Proper hydration is essential for accurate assessment and overall health.
  • Nutritional Intake and Timing: A wrestler's diet directly impacts LBM and fat mass. Sufficient protein supports muscle maintenance and growth, while calorie balance influences fat storage. The timing of meals and hydration around measurement day can also play a role, though the focus remains on sustainable body composition.
  • Growth and Development: Younger wrestlers, especially in high school transitioning to college, are still growing. Their body composition can change significantly over time. Regular re-evaluation using tools like this calculator is necessary to adapt training and weight management strategies.
  • Training Load and Muscle Development: Intense training programs can build muscle, increasing LBM. If a wrestler is concurrently losing fat, their eligibility can improve. However, overtraining without adequate nutrition could lead to muscle loss, negatively impacting LBM and potentially causing ineligibility.

Frequently Asked Questions (FAQ)

Q1: What is the standard body fat percentage limit for college wrestling?

A: For both NCAA and NAIA, the standard maximum body fat percentage is typically 15%. This can vary slightly for specific circumstances or divisions, but 15% is the widely recognized benchmark.

Q2: How often is weight certification conducted?

A: This varies by organization and team. Some require initial certification at the beginning of the season, with re-evaluations periodically. Others may conduct it more frequently. It's essential to follow your specific team's or conference's policy.

Q3: Can I lose weight and still be eligible if my body fat is slightly above 15%?

A: Not necessarily. The certification is based on your body composition *at the time of measurement*. If your body fat is 17% and you need to be at 15%, you must reduce your fat mass. Simply losing weight without reducing body fat percentage won't make you eligible if your LBM drops proportionally or below the minimum requirement for the weight class.

Q4: What happens if I fail my initial weight certification?

A: If you fail, you typically have opportunities to re-test after a specified period, allowing time to adjust your body composition. Work closely with your coach and medical staff to develop a safe and effective plan. Missing matches or competitions might be a consequence if re-certification isn't achieved promptly.

Q5: Does the calculator account for different NCAA divisions (DI, DII, DIII)?

A: This calculator uses the standard 15% body fat limit common across NCAA divisions. While the weight classes themselves differ, the fundamental body composition requirement is generally consistent. Always verify specific nuances with your athletic department.

Q6: How reliable are home body fat scales?

A: Home body fat scales (like BIA scales) can provide a general estimate but are often less accurate than clinical methods (e.g., DEXA scans, hydrostatic weighing, or skinfold calipers performed by a trained professional). For official certification, rely on measurements taken by certified athletic trainers or medical staff.

Q7: What is the "Redshirt" weight class concept?

A: "Redshirting" often implies a wrestler is focusing on training and development for a year without competing. During this time, they might train at a higher weight to build muscle and strength, preparing for a specific weight class in subsequent seasons. This calculator helps project future eligibility based on current data.

Q8: How does "pound-for-pound" relate to weight certification?

A: "Pound-for-pound" is a general ranking term used in combat sports, not an official weight certification rule. Weight certification is strictly based on meeting the defined weight class limits and body composition standards set by the governing body.

Related Tools and Internal Resources

Disclaimer: This calculator is for informational purposes only and does not constitute official athletic certification. Always consult with your coach, athletic trainer, or governing body for official rules and requirements.

// Charting var ctx = document.getElementById("weightCertificationChart").getContext("2d"); var weightCertificationChart = null; function createChart(currentLBM, minRequiredLBM, desiredWeightClass, bfLevels) { var labels = bfLevels.map(function(bf) { return bf + "%"; }); var requiredLBMData = bfLevels.map(function(bf) { return parseFloat((desiredWeightClass * (1 – (bf / 100))).toFixed(2)); }); if (weightCertificationChart) { weightCertificationChart.destroy(); } weightCertificationChart = new Chart(ctx, { type: 'line', data: { labels: labels, datasets: [{ label: 'Minimum Required LBM (lbs)', data: requiredLBMData, borderColor: '#004a99', backgroundColor: 'rgba(0, 74, 153, 0.2)', fill: false, tension: 0.1 }, { label: 'Your Current LBM (lbs)', data: bfLevels.map(function() { return parseFloat(currentLBM.toFixed(2)); }), borderColor: '#28a745', backgroundColor: 'rgba(40, 167, 69, 0.2)', fill: false, tension: 0.1 }] }, options: { responsive: true, maintainAspectRatio: true, scales: { y: { beginAtZero: true, title: { display: true, text: 'Lean Body Mass (lbs)' } }, x: { title: { display: true, text: 'Body Fat Percentage' } } }, plugins: { tooltip: { callbacks: { label: function(context) { var label = context.dataset.label || "; if (label) { label += ': '; } if (context.parsed.y !== null) { label += context.parsed.y + ' lbs'; } return label; } } } } } }); } // Calculator Logic function calculateWeightCertification() { var wrestlerWeightInput = document.getElementById("wrestlerWeight"); var bodyFatPercentageInput = document.getElementById("bodyFatPercentage"); var wrestlingOrganizationSelect = document.getElementById("wrestlingOrganization"); var competitionWeightClassInput = document.getElementById("competitionWeightClass"); var wrestlerWeightError = document.getElementById("wrestlerWeightError"); var bodyFatPercentageError = document.getElementById("bodyFatPercentageError"); var competitionWeightClassError = document.getElementById("competitionWeightClassError"); var wrestlerWeight = parseFloat(wrestlerWeightInput.value); var bodyFatPercentage = parseFloat(bodyFatPercentageInput.value); var competitionWeightClass = parseFloat(competitionWeightClassInput.value); var organization = wrestlingOrganizationSelect.value; var isValid = true; // Reset errors wrestlerWeightError.style.display = "none"; bodyFatPercentageError.style.display = "none"; competitionWeightClassError.style.display = "none"; // Input validation if (isNaN(wrestlerWeight) || wrestlerWeight <= 0) { wrestlerWeightError.textContent = "Please enter a valid current weight (must be positive)."; wrestlerWeightError.style.display = "block"; isValid = false; } if (isNaN(bodyFatPercentage) || bodyFatPercentage 100) { bodyFatPercentageError.textContent = "Please enter a valid body fat percentage (0-100%)."; bodyFatPercentageError.style.display = "block"; isValid = false; } if (isNaN(competitionWeightClass) || competitionWeightClass = minLeanMassRequired) { resultText = "Eligible"; eligibilityColor = "#28a745"; // Green for eligible } else { resultText = "Not Eligible"; } // Display Results document.getElementById("result-primary").textContent = resultText; document.getElementById("result-primary").style.color = eligibilityColor; document.getElementById("leanBodyMass").textContent = leanBodyMass.toFixed(2); document.getElementById("maxFatMass").textContent = maxFatMass.toFixed(2); document.getElementById("minLeanMass").textContent = minLeanMassRequired.toFixed(2); // Update Chart var bfLevelsForChart = [5, 10, 15, 20, 25]; // Example body fat percentages for chart x-axis var currentLBMForChart = leanBodyMass; createChart(currentLBMForChart, minLeanMassRequired, competitionWeightClass, bfLevelsForChart); } function resetCalculator() { document.getElementById("wrestlerWeight").value = ""; document.getElementById("bodyFatPercentage").value = ""; document.getElementById("wrestlingOrganization").value = "ncaa"; document.getElementById("competitionWeightClass").value = ""; document.getElementById("wrestlerWeightError").style.display = "none"; document.getElementById("bodyFatPercentageError").style.display = "none"; document.getElementById("competitionWeightClassError").style.display = "none"; document.getElementById("result-primary").textContent = "–"; document.getElementById("leanBodyMass").textContent = "–"; document.getElementById("maxFatMass").textContent = "–"; document.getElementById("minLeanMass").textContent = "–"; if (weightCertificationChart) { weightCertificationChart.destroy(); } } function copyResults() { var primaryResult = document.getElementById("result-primary").textContent; var lbm = document.getElementById("leanBodyMass").textContent; var maxFat = document.getElementById("maxFatMass").textContent; var minLean = document.getElementById("minLeanMass").textContent; var currentWeight = document.getElementById("wrestlerWeight").value; var currentBF = document.getElementById("bodyFatPercentage").value; var targetClass = document.getElementById("competitionWeightClass").value; var org = document.getElementById("wrestlingOrganization").value.toUpperCase(); if (primaryResult === "–") { alert("No results to copy yet. Please calculate first."); return; } var resultsText = "College Wrestling Weight Certification Results:\n\n"; resultsText += "Current Status: " + primaryResult + "\n"; resultsText += "—————————————-\n"; resultsText += "Assumptions:\n"; resultsText += " – Current Weight: " + currentWeight + " lbs\n"; resultsText += " – Current Body Fat: " + currentBF + "%\n"; resultsText += " – Desired Weight Class: " + targetClass + " lbs\n"; resultsText += " – Organization: " + org + "\n"; resultsText += "—————————————-\n"; resultsText += "Calculated Metrics:\n"; resultsText += " – Your Lean Body Mass: " + lbm + " lbs\n"; resultsText += " – Max Allowed Fat Mass (at current weight): " + maxFat + " lbs\n"; resultsText += " – Minimum Required LBM for " + targetClass + " lbs class: " + minLean + " lbs\n"; try { navigator.clipboard.writeText(resultsText).then(function() { alert("Results copied to clipboard!"); }).catch(function(err) { console.error("Failed to copy: ", err); prompt("Copy this text manually:", resultsText); }); } catch (err) { console.error("Clipboard API not available: ", err); prompt("Copy this text manually:", resultsText); } } // Initial calculation on load if values are present (e.g., from URL params – not implemented here) // For now, it just sets up the chart placeholder. document.addEventListener("DOMContentLoaded", function() { var bfLevelsForChart = [5, 10, 15, 20, 25]; createChart(0, 0, 130, bfLevelsForChart); // Initial empty chart // Trigger calculation if default values should be shown or if coming from query params // calculateWeightCertification(); });

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