Tee Weight Calculator

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Tee Weight Calculator

Understand the impact of tee weight on your golf swing and shot performance.

Golf Tee Weight Calculator

Wood (Pine/Birch) Plastic (ABS/Polycarbonate) Metal (Aluminum/Steel) Composite (Carbon Fiber/Resin) Select the primary material of your golf tee.
Standard length is around 70mm (2.75 inches).
Typical diameter is around 8mm (0.31 inches).
Average club head speed for male golfers.
Approximate mass of your driver's club head.

Calculation Results

Tee Impact Factor: 1.00
Tee Weight: 5.0 grams
Tee Volume: 40 cm³
Material Density: 0.125 g/cm³
Swing Speed Impact Factor: 1.00
Formula: Tee Impact Factor = (Tee Weight / Average Tee Weight) * (Swing Speed / Average Swing Speed)
*Note: This is a simplified model to illustrate potential impact. Actual physics are more complex.
Tee Weight Calculator Results: Tee Impact Factor: 1.00 Tee Weight: 5.0 grams Tee Volume: 40 cm³ Material Density: 0.125 g/cm³ Swing Speed Impact Factor: 1.00 Key Assumptions: Average Tee Weight: 5.0 grams Average Swing Speed: 160 km/h Club Head Mass: 200 grams
Chart: Relative Impact Factor vs. Tee Weight
Golf Tee Material Properties
Material Typical Density (g/cm³) Typical Weight for 70mm x 8mm Tee (grams) Common Use
Wood (Pine/Birch) 0.40 – 0.70 14.0 – 24.5 Beginner to Intermediate
Plastic (ABS/Polycarbonate) 1.05 – 1.25 36.75 – 43.75 All Levels, Durable
Metal (Aluminum/Steel) 2.70 – 7.85 94.5 – 274.75 Durability, Unique Feel
Composite (Carbon Fiber) 1.60 – 1.80 56.0 – 63.0 Performance-oriented, Lightweight

What is Tee Weight?

Definition and Significance

In golf, "tee weight" refers to the mass of the golf tee used to elevate the ball at the start of a hole. While often overlooked, the weight of a golf tee, along with its material and design, can have subtle yet measurable impacts on a golfer's performance. This is primarily due to its interaction with the club head during the downswing and impact. A heavier tee, or a tee made of denser material, introduces slightly more resistance or drag as the club passes over it. Conversely, a lighter tee might offer less resistance.

Understanding tee weight is crucial for golfers seeking to optimize every aspect of their game. While the effect is generally less significant than factors like club head speed, swing path, or ball dynamics, subtle changes can contribute to consistency and potentially minor gains in distance or feel. This tee weight calculator helps quantify these potential effects.

Who Should Use a Tee Weight Calculator?

This tee weight calculator is beneficial for several groups of golfers:

  • Performance-Seeking Amateurs: Golfers who meticulously analyze their equipment and seek marginal gains in distance or consistency.
  • Club Fitters and Coaches: Professionals who advise golfers on equipment choices and can use such tools to explain subtle equipment differences.
  • Equipment Enthusiasts: Golfers who enjoy understanding the physics and engineering behind their gear.
  • Equipment Manufacturers: Companies designing and testing new golf tee products can use these calculations as part of their R&D process.

Common Misconceptions about Tee Weight

  • "Tee weight has no impact": While the impact is small compared to other factors, it exists. The goal isn't to eliminate it but to understand and potentially leverage it.
  • "Heavier is always better/worse": The optimal weight is subjective and depends on the golfer's swing characteristics and personal preference. There's no universal "best" weight.
  • "All tees are the same": Materials, shapes, and weights vary significantly, leading to different physical properties and impacts.

Tee Weight Formula and Mathematical Explanation

The Simplified Tee Impact Factor

The core idea behind calculating the impact of tee weight is to compare the actual tee's properties against a baseline or average. Our simplified tee weight calculator uses a "Tee Impact Factor" to represent how much a specific tee might influence performance relative to a standard. This factor considers the tee's weight and the golfer's swing speed.

The formula is derived from comparing the given input values to standard or average values for each parameter.

Formula Derivation

We aim to quantify the *relative* impact. A tee that weighs twice the average might have a larger impact than one that is only slightly heavier. Similarly, a faster swing speed might amplify the effect of the tee's mass.

  1. Calculate Tee Volume: We first need the volume of the tee to estimate its weight based on material density. Assuming a cylindrical shape for simplicity: Volume (cm³) = π * (Diameter/2)² * Length Where Diameter is in cm and Length is in cm. (Note: Input diameter is in mm, so it needs conversion).
  2. Calculate Tee Weight: Using the calculated volume and the material's density: Tee Weight (grams) = Volume (cm³) * Density (g/cm³)
  3. Calculate Swing Speed Impact Factor: This factor adjusts for the golfer's swing speed. A faster swing means the club head encounters the tee with more kinetic energy, potentially making the tee's mass more relevant. Swing Speed Impact Factor = Swing Speed (km/h) / Average Swing Speed (km/h)
  4. Calculate Tee Impact Factor: This is the primary output. It combines the relative weight of the tee with the relative impact of the swing speed. Tee Impact Factor = (Tee Weight (grams) / Average Tee Weight (grams)) * Swing Speed Impact Factor

Variables Explained

Here's a breakdown of the variables used in the calculation:

Variable Meaning Unit Typical Range / Basis
Tee Material The substance the tee is made from. Wood, Plastic, Metal, Composite
Tee Length The vertical height of the tee. cm 30 – 100 cm
Tee Diameter The thickness of the tee shaft. mm 5 – 15 mm
Swing Speed The speed of the club head at impact. km/h 80 – 250 km/h
Club Head Mass The mass of the driver's club head. (Used for context, not direct calculation in this simplified model) grams 150 – 250 grams
Material Density Mass per unit volume of the tee material. g/cm³ Varies by material (See table)
Tee Volume The physical space occupied by the tee. cm³ Calculated
Tee Weight The mass of the specific tee. grams Calculated
Average Tee Weight A reference weight for comparison (e.g., standard wood tee). grams 5.0 grams (default baseline)
Average Swing Speed A reference swing speed for comparison. km/h 160 km/h (default baseline)
Swing Speed Impact Factor Relative impact based on swing speed. Calculated
Tee Impact Factor Overall relative impact of the tee. Calculated

Practical Examples (Real-World Use Cases)

Example 1: The Average Golfer with a Standard Wood Tee

Consider a golfer with a driver swing speed of 160 km/h. They are using a standard 70mm wooden tee with an 8mm diameter. We assume the wood has a density of 0.5 g/cm³.

  • Tee Material: Wood
  • Tee Length: 70 mm = 7 cm
  • Tee Diameter: 8 mm = 0.8 cm
  • Swing Speed: 160 km/h
  • Club Head Mass: 200 g
  • Material Density: 0.5 g/cm³

Calculations:

  1. Tee Volume = π * (0.8cm / 2)² * 7cm ≈ 3.52 cm³
  2. Tee Weight = 3.52 cm³ * 0.5 g/cm³ ≈ 1.76 grams
  3. Swing Speed Impact Factor = 160 km/h / 160 km/h = 1.00
  4. Tee Impact Factor = (1.76 g / 5.0 g) * 1.00 ≈ 0.35

Interpretation: This golfer's lighter wood tee has a relatively low impact factor (0.35). This suggests that for their swing speed, the tee's weight is not a significant contributor to performance variables like drag or energy transfer efficiency. This is typical for standard wooden tees.

Example 2: The Powerful Golfer with a Heavy Plastic Tee

Now, imagine a golfer with a faster swing speed of 200 km/h using a robust, slightly larger 80mm plastic tee (density 1.2 g/cm³) with a 10mm diameter.

  • Tee Material: Plastic
  • Tee Length: 80 mm = 8 cm
  • Tee Diameter: 10 mm = 1.0 cm
  • Swing Speed: 200 km/h
  • Club Head Mass: 200 g
  • Material Density: 1.2 g/cm³

Calculations:

  1. Tee Volume = π * (1.0cm / 2)² * 8cm ≈ 6.28 cm³
  2. Tee Weight = 6.28 cm³ * 1.2 g/cm³ ≈ 7.54 grams
  3. Swing Speed Impact Factor = 200 km/h / 160 km/h = 1.25
  4. Tee Impact Factor = (7.54 g / 5.0 g) * 1.25 ≈ 1.51 * 1.25 ≈ 1.89

Interpretation: This golfer's tee is significantly heavier than the average (7.54g vs 5.0g), and their swing speed is higher. The resulting impact factor of 1.89 is considerably higher than the average golfer. This suggests that the heavier tee, combined with their powerful swing, might introduce more aerodynamic drag or alter the impact dynamics more noticeably. They might consider testing lighter tees to see if it improves club head speed and distance, or if the stability of the heavier tee is preferred.

How to Use This Tee Weight Calculator

Our tee weight calculator is designed for simplicity and ease of use. Follow these steps to understand the potential impact of your golf tee:

  1. Input Your Tee Details: Select your tee's primary material from the dropdown. Enter the precise length (in cm) and diameter (in mm) of your tee. If you don't have a measuring tool, use the typical dimensions provided as a starting point.
  2. Enter Your Swing Data: Input your driver swing speed in km/h. If you're unsure, many launch monitors and golf simulators can provide this data. Enter your club head mass in grams, which is usually listed in your club's specifications.
  3. Observe the Results: As you input the data, the calculator will update automatically in real-time.
    • Tee Weight: This is the calculated mass of your specific tee based on its dimensions and material.
    • Tee Volume: The physical volume occupied by the tee.
    • Material Density: The inherent density of the selected tee material.
    • Swing Speed Impact Factor: Shows how your swing speed compares to the baseline average.
    • Primary Result (Tee Impact Factor): This highlighted number provides a relative score. A factor significantly above 1.0 suggests the tee might have a more noticeable effect (potentially negative due to drag, or positive due to stability) on your swing compared to a baseline. A factor below 1.0 suggests a lesser impact.
  4. Understand the Formula: Read the brief explanation of the formula to grasp how the inputs contribute to the output. Remember this is a simplified model.
  5. Analyze the Chart and Table:
    • The chart visually compares the potential impact factor across different tee weights.
    • The table provides a quick reference for typical material densities and calculated weights for common tee sizes.
  6. Use the 'Copy Results' Button: If you want to save or share your findings, click the 'Copy Results' button. This will copy the main result, intermediate values, and key assumptions to your clipboard.
  7. Experiment with 'Reset': The 'Reset' button returns all inputs to their default, average values, allowing you to easily start a new calculation or compare scenarios.

Decision-Making Guidance

Use the calculated Tee Impact Factor as a guide, not a definitive rule.

  • High Impact Factor (> 1.5): If your factor is significantly high, consider experimenting with lighter tees or tees made from less dense materials. This might reduce drag and potentially increase club head speed. However, some golfers prefer the feel and stability of slightly heavier tees.
  • Low Impact Factor (< 0.7): If your factor is very low, the tee's weight is unlikely to be a major performance factor for you. Focus on other aspects of your swing and equipment.
  • Moderate Impact Factor (0.7 – 1.5): Your tee weight is within a typical range. Preferences here are often subjective. Test different materials and weights to see if you notice any difference in feel or performance.

Always remember that personal feel, consistency, and the ball's launch conditions are paramount. Use this calculator to inform your equipment choices, not dictate them.

Key Factors That Affect Tee Weight Results

While our tee weight calculator provides a useful estimate, several real-world factors influence the actual impact of a golf tee:

  1. Aerodynamic Properties: The shape of the tee (e.g., fluted, conical, solid) significantly affects airflow around it. A more aerodynamic design might reduce drag even if the tee is heavy. Our calculator simplifies this by focusing on weight and material.
  2. Material Strength and Flexibility: Different materials have varying tensile strengths and flex. A very stiff, heavy tee might transfer energy differently than a flexible, lighter one. The tee's ability to withstand impact without breaking is also crucial.
  3. Tee-Ball Interface: How the ball rests on the tee (e.g., number of contact points, depth of the ball's dimple engagement) can affect stability and the initial launch angle, independent of weight.
  4. Club Face Interaction: The exact point of contact between the clubface and the tee during the downswing is critical. If the club completely misses the tee, its weight becomes irrelevant. Variations in swing path and lie angle influence this.
  5. Environmental Conditions: Wind speed and direction can interact with the tee and ball, especially at higher swing speeds. In windy conditions, a more stable, possibly heavier, tee might be preferred.
  6. Golfer's Technique and Feel: Ultimately, a golfer's perception and adaptation play a huge role. If a golfer feels more confident or consistent with a particular tee, regardless of its calculated impact factor, that subjective benefit can outweigh minor physical differences. This often ties into understanding your golf swing.
  7. Tee Degradation: Wooden tees can chip or break, altering their weight and shape mid-round. Plastic tees can become brittle over time. This variability needs consideration.
  8. Ball Compression: The way the golf ball compresses against the tee and club face at impact also plays a role in energy transfer, though this is less directly related to the tee's mass itself.

Frequently Asked Questions (FAQ)

Q1: Does the color of a golf tee affect its performance?

No, the color of a golf tee has no measurable impact on performance. Color is purely aesthetic and does not influence weight, aerodynamics, or material properties.

Q2: How much does a typical golf tee weigh?

A standard wooden tee (around 70mm long, 8mm diameter) typically weighs between 1.5 to 3 grams. Plastic tees can range from 4 to 10 grams depending on size and material density. Heavier materials like metal would result in significantly heavier tees. Our baseline for the calculator is set at 5.0 grams.

Q3: Should I use a heavier or lighter tee?

There's no single answer. Lighter tees may offer less resistance, potentially increasing club head speed slightly. Heavier tees might feel more stable and less prone to breaking. The best approach is to experiment with different weights and materials within your preferred size range to see what feels best and performs optimally for your swing.

Q4: Can tee weight affect my golf ball's distance?

Potentially, yes, but the effect is usually very small. If a heavier tee creates significant drag or hinders the club head speed at impact, it could theoretically reduce distance. Conversely, a very light tee might offer less stable platform. The impact is generally dwarfed by factors like club head speed, launch angle, and spin rate.

Q5: Does the shape of the tee matter more than its weight?

Shape can be equally, if not more, important for aerodynamics. A well-designed, aerodynamic tee might reduce drag more effectively than simply choosing a lighter material. However, weight still plays a role in the overall physics of the interaction.

Q6: What is the best material for a golf tee?

"Best" is subjective. Wood is traditional and biodegradable but breaks easily. Plastic tees offer good durability and consistency. Composite materials can be very strong and light. Metal tees are extremely durable but can be heavy and may even damage clubs if misused. Consider durability, environmental impact, and your personal preference.

Q7: My tee broke. Does that affect the calculation?

Yes. If a tee breaks during a shot, the remaining part might still be in play, but its weight and shape are altered. For calculation purposes, you should always consider the intact tee used for the initial setup. Broken tees are usually replaced.

Q8: How accurate is this tee weight calculator?

This calculator provides a simplified model based on fundamental physics principles (volume, density, weight). It aims to illustrate the *relative* impact of tee weight and swing speed. Real-world golf physics are far more complex, involving intricate aerodynamics, impact dynamics, and material science. Use the results as a guide for understanding potential influences rather than absolute predictions.

Related Tools and Internal Resources

© 2023 Your Golf Insights. All rights reserved. This calculator and information are for educational purposes only.

// Constants for calculation baseline var AVERAGE_TEE_WEIGHT_G = 5.0; // grams (e.g., a standard wood tee) var AVERAGE_SWING_SPEED_KMH = 160; // km/h var PI = Math.PI; // Material density lookup table (g/cm³) var materialDensities = { "wood": 0.55, // Average for Pine/Birch "plastic": 1.15, // Average for ABS/Polycarbonate "metal": 5.0, // Placeholder average, actual varies greatly (e.g., Aluminum ~2.7, Steel ~7.85) "composite": 1.7 // Average for Carbon Fiber composites }; // Function to validate input fields function validateInput(inputId, min, max) { var input = document.getElementById(inputId); var errorElement = document.getElementById(inputId + "Error"); var value = parseFloat(input.value); if (isNaN(value)) { errorElement.textContent = "Please enter a valid number."; errorElement.style.display = "block"; input.style.borderColor = "#dc3545"; return false; } if (value max) { errorElement.textContent = "Value cannot be greater than " + max + "."; errorElement.style.display = "block"; input.style.borderColor = "#dc3545"; return false; } errorElement.textContent = ""; errorElement.style.display = "none"; input.style.borderColor = "#ced4da"; // Default border color return true; } // Function to update chart data function updateChart(teeImpactFactor) { var canvas = document.getElementById("teeWeightChart"); var ctx = canvas.getContext("2d"); canvas.width = canvas.offsetWidth; // Ensure canvas resizes canvas.height = 300; // Generate data points for the chart: varying tee weight var chartDataPoints = []; var weights = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15]; // Tee weights in grams for chart var currentSwingSpeed = parseFloat(document.getElementById("swingSpeed").value) || AVERAGE_SWING_SPEED_KMH; for (var i = 0; i < weights.length; i++) { var weight = weights[i]; var impactFactor = (weight / AVERAGE_TEE_WEIGHT_G) * (currentSwingSpeed / AVERAGE_SWING_SPEED_KMH); chartDataPoints.push({ weight: weight, impactFactor: impactFactor }); } // Clear previous drawing ctx.clearRect(0, 0, canvas.width, canvas.height); // Chart settings var chartAreaWidth = canvas.width * 0.85; var chartAreaHeight = canvas.height * 0.75; var paddingX = canvas.width * 0.1; var paddingY = canvas.height * 0.15; var xAxisY = canvas.height – paddingY; // Find max impact factor for scaling var maxImpactFactor = 0; for (var i = 0; i maxImpactFactor) { maxImpactFactor = chartDataPoints[i].impactFactor; } } if (maxImpactFactor < 1.5) maxImpactFactor = 1.5; // Ensure baseline is visible // Draw X axis ctx.beginPath(); ctx.moveTo(paddingX, xAxisY); ctx.lineTo(canvas.width – paddingX, xAxisY); ctx.strokeStyle = "#ccc"; ctx.stroke(); ctx.font = "12px Arial"; ctx.fillStyle = "#666"; ctx.textAlign = "center"; ctx.fillText("Tee Weight (grams)", canvas.width / 2, canvas.height – paddingY / 4); // Draw Y axis ctx.beginPath(); ctx.moveTo(paddingX, paddingY); ctx.lineTo(paddingX, xAxisY); ctx.strokeStyle = "#ccc"; ctx.stroke(); ctx.textAlign = "right"; ctx.fillText("Impact Factor", paddingX * 0.8, paddingY + 15); // Draw data points and lines ctx.strokeStyle = "var(–primary-color)"; ctx.lineWidth = 2; ctx.beginPath(); for (var i = 0; i < chartDataPoints.length; i++) { var point = chartDataPoints[i]; var x = paddingX + (point.weight / weights[weights.length – 1]) * chartAreaWidth; var y = xAxisY – (point.impactFactor / maxImpactFactor) * chartAreaHeight; if (i === 0) { ctx.moveTo(x, y); } else { ctx.lineTo(x, y); } } ctx.stroke(); // Draw individual points ctx.fillStyle = "var(–primary-color)"; for (var i = 0; i < chartDataPoints.length; i++) { var point = chartDataPoints[i]; var x = paddingX + (point.weight / weights[weights.length – 1]) * chartAreaWidth; var y = xAxisY – (point.impactFactor / maxImpactFactor) * chartAreaHeight; ctx.beginPath(); ctx.arc(x, y, 4, 0, 2 * PI); ctx.fill(); // Add labels for points ctx.fillStyle = "#333"; ctx.font = "11px Arial"; ctx.fillText(point.weight.toFixed(0) + "g (" + point.impactFactor.toFixed(2) + ")", x, y – 10); } // Draw baseline (1.0 Impact Factor) ctx.beginPath(); var baselineY = xAxisY – (1.0 / maxImpactFactor) * chartAreaHeight; ctx.moveTo(paddingX, baselineY); ctx.lineTo(canvas.width – paddingX, baselineY); ctx.strokeStyle = "#aaa"; ctx.setLineDash([5, 5]); ctx.stroke(); ctx.setLineDash([]); // Reset line dash ctx.fillStyle = "#666"; ctx.textAlign = "left"; ctx.fillText("Avg. Impact (1.0)", paddingX + 5, baselineY – 5); // Draw baseline (Average Tee Weight) var avgWeightX = paddingX + (AVERAGE_TEE_WEIGHT_G / weights[weights.length – 1]) * chartAreaWidth; ctx.beginPath(); ctx.moveTo(avgWeightX, paddingY); ctx.lineTo(avgWeightX, xAxisY); ctx.strokeStyle = "#aaa"; ctx.setLineDash([5, 5]); ctx.stroke(); ctx.setLineDash([]); // Reset line dash ctx.textAlign = "center"; ctx.fillText("Avg Tee Wt (" + AVERAGE_TEE_WEIGHT_G.toFixed(1) + "g)", avgWeightX, xAxisY + 15); } // Main calculation function function calculateTeeWeight() { // Get input values var teeMaterial = document.getElementById("teeMaterial").value; var teeLengthCm = parseFloat(document.getElementById("teeLength").value); var teeDiameterMm = parseFloat(document.getElementById("teeDiameter").value); var swingSpeedKmh = parseFloat(document.getElementById("swingSpeed").value); var clubHeadMassG = parseFloat(document.getElementById("clubHeadMass").value); // Validate all inputs first before proceeding var inputsValid = true; inputsValid = validateInput('teeLength', 30, 100) && inputsValid; inputsValid = validateInput('teeDiameter', 5, 15) && inputsValid; inputsValid = validateInput('swingSpeed', 80, 250) && inputsValid; inputsValid = validateInput('clubHeadMass', 150, 250) && inputsValid; if (!inputsValid) { // Clear results if inputs are invalid document.getElementById("primary-result").textContent = "Tee Impact Factor: N/A"; document.getElementById("intermediate-teeWeight").textContent = "Tee Weight: N/A"; document.getElementById("intermediate-teeVolume").textContent = "Tee Volume: N/A"; document.getElementById("intermediate-density").textContent = "Material Density: N/A"; document.getElementById("intermediate-swingImpact").textContent = "Swing Speed Impact Factor: N/A"; return; } // Convert diameter from mm to cm var teeDiameterCm = teeDiameterMm / 10; // Get material density var density = materialDensities[teeMaterial]; if (density === undefined) { console.error("Unknown tee material:", teeMaterial); density = 0.5; // Default to wood if material not found } // Calculate intermediate values // Volume = PI * r^2 * h. r = diameter/2. h = length. var teeVolumeCm3 = PI * Math.pow((teeDiameterCm / 2), 2) * teeLengthCm; // Weight = Volume * Density var teeWeightG = teeVolumeCm3 * density; // Calculate swing speed impact factor var swingImpactFactor = swingSpeedKmh / AVERAGE_SWING_SPEED_KMH; // Calculate primary result: Tee Impact Factor var teeImpactFactor = (teeWeightG / AVERAGE_TEE_WEIGHT_G) * swingImpactFactor; // Display results document.getElementById("primary-result").textContent = "Tee Impact Factor: " + teeImpactFactor.toFixed(2); document.getElementById("intermediate-teeWeight").textContent = "Tee Weight: " + teeWeightG.toFixed(2) + " grams"; document.getElementById("intermediate-teeVolume").textContent = "Tee Volume: " + teeVolumeCm3.toFixed(2) + " cm³"; document.getElementById("intermediate-density").textContent = "Material Density: " + density.toFixed(3) + " g/cm³"; document.getElementById("intermediate-swingImpact").textContent = "Swing Speed Impact Factor: " + swingImpactFactor.toFixed(2); // Update the hidden div for copying var resultsToCopyDiv = document.getElementById("results-to-copy"); resultsToCopyDiv.innerHTML = "Tee Weight Calculator Results:" + "Tee Impact Factor: " + teeImpactFactor.toFixed(2) + "" + "Tee Weight: " + teeWeightG.toFixed(2) + " grams" + "Tee Volume: " + teeVolumeCm3.toFixed(2) + " cm³" + "Material Density: " + density.toFixed(3) + " g/cm³" + "Swing Speed Impact Factor: " + swingImpactFactor.toFixed(2) + "" + "Key Assumptions:" + "Average Tee Weight: " + AVERAGE_TEE_WEIGHT_G.toFixed(1) + " grams" + "Average Swing Speed: " + AVERAGE_SWING_SPEED_KMH + " km/h" + "Club Head Mass: " + clubHeadMassG + " grams"; // Update the chart updateChart(teeImpactFactor); } // Function to reset calculator to default values function resetTeeWeightCalculator() { document.getElementById("teeMaterial").value = "wood"; document.getElementById("teeLength").value = 70; document.getElementById("teeDiameter").value = 8; document.getElementById("swingSpeed").value = 160; document.getElementById("clubHeadMass").value = 200; // Clear errors var inputs = document.querySelectorAll('.loan-calc-container input[type="number"]'); for (var i = 0; i < inputs.length; i++) { var errorId = inputs[i].id + "Error"; var errorElement = document.getElementById(errorId); if (errorElement) { errorElement.textContent = ""; errorElement.style.display = "none"; } inputs[i].style.borderColor = "#ced4da"; // Reset border color } calculateTeeWeight(); // Recalculate with default values } // Function to copy results to clipboard function copyResults() { var resultsDiv = document.getElementById("results-to-copy"); var textToCopy = resultsDiv.innerText || resultsDiv.textContent; // Get text content // Use the Clipboard API navigator.clipboard.writeText(textToCopy).then(function() { // Success feedback (optional) var button = document.querySelector('.copy-button'); var originalText = button.textContent; button.textContent = "Copied!"; setTimeout(function() { button.textContent = originalText; }, 1500); }).catch(function(err) { console.error('Failed to copy text: ', err); // Fallback for older browsers or environments where clipboard API is restricted // This part might require different handling or a textarea approach alert("Could not copy text. Please copy manually."); }); } // Initialize the calculator and chart on page load window.onload = function() { resetTeeWeightCalculator(); // Sets defaults and calculates initial values // Add event listeners for input validation on blur document.getElementById("teeLength").addEventListener("blur", function() { validateInput('teeLength', 30, 100); }); document.getElementById("teeDiameter").addEventListener("blur", function() { validateInput('teeDiameter', 5, 15); }); document.getElementById("swingSpeed").addEventListener("blur", function() { validateInput('swingSpeed', 80, 250); }); document.getElementById("clubHeadMass").addEventListener("blur", function() { validateInput('clubHeadMass', 150, 250); }); // Initialize FAQ toggles var faqItems = document.querySelectorAll('.faq-item h4'); for (var i = 0; i < faqItems.length; i++) { faqItems[i].addEventListener('click', function() { var parent = this.parentElement; parent.classList.toggle('active'); }); } };

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