Distance to Calculator

Distance Calculator: Calculate Travel Time & Fuel Costs :root { –primary-color: #004a99; –success-color: #28a745; –background-color: #f8f9fa; –text-color: #333; –border-color: #ddd; –card-background: #fff; –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); line-height: 1.6; margin: 0; padding: 0; } .container { max-width: 1000px; margin: 20px auto; padding: 20px; background-color: var(–card-background); border-radius: 8px; box-shadow: var(–shadow); } h1, h2, h3 { color: var(–primary-color); text-align: center; margin-bottom: 20px; } h1 { font-size: 2.5em; } h2 { font-size: 1.8em; border-bottom: 2px solid var(–primary-color); padding-bottom: 10px; margin-top: 30px; } h3 { font-size: 1.4em; margin-top: 25px; } .calculator-section { background-color: var(–card-background); padding: 30px; border-radius: 8px; box-shadow: var(–shadow); margin-bottom: 30px; } .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 input[type="text"], .input-group select { width: calc(100% – 22px); padding: 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 input[type="text"]:focus, .input-group select:focus { border-color: var(–primary-color); 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; } .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; gap: 10px; } button { padding: 12px 20px; border: none; border-radius: 5px; cursor: pointer; font-size: 1em; font-weight: bold; transition: background-color 0.3s ease; } .btn-primary { background-color: var(–primary-color); color: white; } .btn-primary:hover { background-color: #003366; } .btn-secondary { background-color: #6c757d; color: white; } .btn-secondary:hover { background-color: #5a6268; } .btn-success { background-color: var(–success-color); color: white; } .btn-success:hover { background-color: #218838; } .results-container { margin-top: 30px; padding: 25px; background-color: var(–primary-color); color: white; border-radius: 8px; box-shadow: var(–shadow); text-align: center; } .results-container h3 { color: white; margin-bottom: 15px; } .main-result { font-size: 2.2em; font-weight: bold; margin: 10px 0; padding: 10px; background-color: rgba(255, 255, 255, 0.2); border-radius: 5px; display: inline-block; } .intermediate-results div { margin-bottom: 10px; font-size: 1.1em; } .intermediate-results span { font-weight: bold; color: #e0e0e0; } .formula-explanation { font-size: 0.9em; margin-top: 15px; opacity: 0.8; } table { width: 100%; border-collapse: collapse; margin-top: 20px; box-shadow: var(–shadow); } th, td { padding: 12px; text-align: left; border-bottom: 1px solid var(–border-color); } thead th { background-color: var(–primary-color); color: white; font-weight: bold; } tbody tr:nth-child(even) { background-color: #f2f2f2; } caption { font-size: 1.1em; font-weight: bold; color: var(–primary-color); margin-bottom: 10px; caption-side: top; text-align: left; } canvas { display: block; margin: 20px auto; max-width: 100%; border: 1px solid var(–border-color); border-radius: 4px; } .article-content { margin-top: 40px; background-color: var(–card-background); padding: 30px; border-radius: 8px; box-shadow: var(–shadow); } .article-content p, .article-content ul, .article-content ol { margin-bottom: 15px; } .article-content li { margin-bottom: 8px; } .article-content a { color: var(–primary-color); text-decoration: none; } .article-content a:hover { text-decoration: underline; } .faq-item { margin-bottom: 15px; border-left: 3px solid var(–primary-color); padding-left: 15px; } .faq-item strong { display: block; color: var(–primary-color); margin-bottom: 5px; } .related-tools ul { list-style: none; padding: 0; } .related-tools li { margin-bottom: 10px; } .related-tools a { font-weight: bold; } .related-tools span { font-size: 0.9em; color: #555; display: block; margin-top: 3px; } /* Responsive adjustments */ @media (max-width: 768px) { .container { margin: 10px; padding: 15px; } h1 { font-size: 2em; } h2 { font-size: 1.5em; } button { padding: 10px 15px; font-size: 0.95em; } .button-group { flex-direction: column; } .results-container { padding: 20px; } .main-result { font-size: 1.8em; } }

Distance Calculator

Calculate travel time, fuel needs, and costs for any journey.

Distance & Travel Calculator

Enter the total distance of your trip.
Enter your expected average speed (e.g., km/h or mph).
Enter your vehicle's fuel efficiency (e.g., MPG or L/100km).
Enter the price per unit of fuel (e.g., $/gallon or €/liter).
Miles & Gallons (MPG) Kilometers & Liters (L/100km) Select your preferred units.

Your Trip Summary

–:–:–
Calculated using: Time = Distance / Speed
Total Fuel Needed:
Estimated Fuel Cost:
Distance Unit:
Speed Unit:
Fuel Unit:

Trip Analysis Chart

Series: Fuel Needed vs. Distance

Trip Cost Breakdown

Estimated Costs by Segment
Segment Distance Fuel Needed Cost
Enter inputs to see breakdown.

What is Distance Calculation?

Distance calculation is a fundamental concept in physics and everyday life, referring to the measurement of the space between two points. In the context of travel, it's the total length of the path one must traverse to get from a starting point to a destination. Understanding distance is crucial for planning journeys, estimating travel times, calculating fuel consumption, and determining associated costs. This distance calculator tool simplifies these complex calculations, providing instant insights for drivers, travelers, and logistics planners.

Many people misunderstand distance calculation, often confusing it with displacement (the straight-line distance between two points, regardless of the path taken). For travel planning, the actual path distance is what matters. Another common misconception is that speed is constant; in reality, average speed accounts for variations due to traffic, stops, and speed limits. This distance calculator helps account for these factors by using average speed.

Who should use this distance calculator? Anyone planning a road trip, managing a fleet of vehicles, calculating commute times, or simply curious about the physical aspects of travel. It's invaluable for budgeting fuel expenses and optimizing travel routes. Understanding the relationship between distance, speed, and time is key to efficient travel planning, and this tool makes that accessible.

Distance Calculation Formula and Mathematical Explanation

The core of distance calculation relies on the fundamental relationship between distance, speed, and time. The primary formula is:

Distance = Speed × Time

However, when planning a trip, we often know the distance and our intended average speed, and we need to find the time. Rearranging the formula gives us:

Time = Distance / Speed

This is the main calculation performed by our distance calculator to determine travel duration.

To calculate fuel consumption, we use the vehicle's fuel efficiency:

Fuel Needed = Distance / Fuel Efficiency

Finally, to estimate the cost, we multiply the fuel needed by the price per unit of fuel:

Estimated Cost = Fuel Needed × Fuel Price

Variables Explained

Variables Used in Distance Calculation
Variable Meaning Unit Typical Range
Distance The total length of the path between the start and end points. Miles (mi) or Kilometers (km) 1 – 10,000+
Average Speed The average rate of motion over the entire journey, accounting for stops and variations. Miles Per Hour (MPH) or Kilometers Per Hour (KPH) 10 – 100+
Fuel Efficiency The amount of distance a vehicle can travel per unit of fuel. Miles Per Gallon (MPG) or Liters per 100 Kilometers (L/100km) 10 – 60 (MPG), 3 – 15 (L/100km)
Fuel Price The cost of one unit of fuel. Currency per Gallon or Currency per Liter 1.00 – 10.00+
Time The duration of the journey. Hours, Minutes, Seconds Calculated
Fuel Needed The total volume of fuel required for the journey. Gallons or Liters Calculated
Estimated Cost The total monetary cost of the fuel for the journey. Currency (e.g., USD, EUR) Calculated

Practical Examples (Real-World Use Cases)

Let's explore how this distance calculator can be used in practical scenarios:

Example 1: Planning a Road Trip

Sarah is planning a 500-mile road trip from Los Angeles to San Francisco. She estimates her average driving speed will be 65 mph, considering highway speeds and potential slowdowns. Her car gets 30 MPG, and the current average fuel price is $3.80 per gallon.

  • Inputs:
  • Distance: 500 miles
  • Average Speed: 65 mph
  • Fuel Efficiency: 30 MPG
  • Fuel Price: $3.80 / gallon
  • Units: Miles & Gallons

Using the calculator:

  • Calculated Time: Approximately 7.69 hours (or 7 hours, 41 minutes)
  • Calculated Fuel Needed: Approximately 16.67 gallons
  • Calculated Estimated Cost: Approximately $63.33

Interpretation: Sarah can expect her trip to take nearly 8 hours of driving time. She'll need about 17 gallons of fuel, costing her around $63. This helps her budget for gas and plan overnight stops if needed.

Example 2: International Travel Planning

Mark is driving from Berlin to Paris, a distance of approximately 1050 kilometers. He anticipates an average speed of 110 km/h. His car consumes fuel at a rate of 7.5 L/100km, and the fuel price in Europe is around €1.80 per liter.

  • Inputs:
  • Distance: 1050 km
  • Average Speed: 110 km/h
  • Fuel Efficiency: 7.5 L/100km
  • Fuel Price: €1.80 / liter
  • Units: Kilometers & Liters

Using the calculator:

  • Calculated Time: Approximately 9.55 hours (or 9 hours, 33 minutes)
  • Calculated Fuel Needed: Approximately 78.75 liters
  • Calculated Estimated Cost: Approximately €141.75

Interpretation: Mark's journey will take just over 9.5 hours of driving. He will need approximately 79 liters of fuel, costing him around €142. This information is vital for planning fuel stops and managing his travel budget for the European trip. This is a great example of using a distance calculator for international travel.

How to Use This Distance Calculator

Using our distance calculator is straightforward. Follow these steps for accurate results:

  1. Enter Distance: Input the total distance of your trip in the 'Distance' field. Ensure you use the correct units (miles or kilometers).
  2. Set Average Speed: Provide your expected average speed in the 'Average Speed' field (e.g., 60 mph or 90 km/h). Remember this accounts for variations in speed.
  3. Input Fuel Efficiency: Enter your vehicle's fuel efficiency. If using Miles & Gallons, enter MPG. If using Kilometers & Liters, enter L/100km.
  4. Specify Fuel Price: Enter the cost per unit of fuel in the 'Fuel Price' field.
  5. Select Units: Choose the appropriate unit system (Miles & Gallons or Kilometers & Liters) from the dropdown menu. This ensures all calculations are consistent.
  6. Click Calculate: Press the 'Calculate' button.

Reading the Results:

  • Total Time: Displays the estimated duration of your journey in hours, minutes, and seconds.
  • Total Fuel Needed: Shows the total amount of fuel required for the trip in gallons or liters.
  • Estimated Fuel Cost: Provides the total estimated cost of fuel for the journey.
  • Intermediate Values: Details like distance units, speed units, and fuel units are also shown for clarity.

Decision-Making Guidance:

Use the results to make informed decisions. If the calculated travel time is too long, consider alternative routes or modes of transport. If the fuel cost is higher than expected, explore more fuel-efficient vehicles or look for cheaper fuel stations. This tool empowers you to optimize your travel plans and budget effectively. For more detailed route planning, consider using a route optimization tool.

Key Factors That Affect Distance Calculator Results

While the formulas are straightforward, several real-world factors can influence the accuracy of the results from any distance calculator:

  1. Actual vs. Average Speed: The 'Average Speed' is a critical input. Real-world speeds fluctuate due to traffic congestion, road conditions, speed limits, and driver behavior. Consistently lower average speeds will significantly increase travel time and potentially fuel consumption per hour.
  2. Fuel Efficiency Variations: Fuel efficiency (MPG or L/100km) is not static. It's affected by driving style (aggressive acceleration/braking reduces efficiency), terrain (uphill driving uses more fuel), vehicle load (heavier loads decrease efficiency), tire pressure, and weather conditions (cold weather can reduce efficiency).
  3. Route Complexity and Detours: The 'Distance' input assumes a specific route. Unexpected road closures, construction, or the need for detours can increase the actual distance traveled, impacting both time and fuel costs. Using a GPS navigation service can help mitigate this.
  4. Fuel Price Volatility: Fuel prices fluctuate daily based on market conditions, geopolitical events, and local taxes. The 'Fuel Price' input is a snapshot; the actual cost may vary by the time and location of refueling. Budgeting a buffer is wise.
  5. Vehicle Maintenance: A poorly maintained vehicle (e.g., clogged air filter, underinflated tires) will consume more fuel than rated. Regular maintenance ensures the vehicle operates at its optimal efficiency.
  6. Environmental Factors: Weather conditions like strong headwinds or tailwinds can affect average speed and fuel consumption. Extreme temperatures can also impact engine performance and fuel efficiency.
  7. Tolls and Fees: This calculator focuses on fuel costs. Many routes involve tolls, parking fees, or other charges that are not factored into the fuel cost calculation. These need to be considered separately for a complete trip budget.
  8. Driver Fatigue and Stops: The calculated time is purely driving time. It doesn't account for necessary breaks for rest, meals, or refueling stops, which add to the overall journey duration.

Frequently Asked Questions (FAQ)

Q1: What is the difference between distance and displacement?

Distance is the total length of the path traveled, while displacement is the straight-line distance between the start and end points. For travel planning, distance is the relevant metric.

Q2: How accurate is the 'Average Speed' input?

The accuracy depends on your estimation. It's best to be realistic, considering potential traffic, speed limits, and planned stops. A higher estimated average speed leads to a shorter calculated travel time.

Q3: My car's MPG is different from the calculator result. Why?

The calculator uses the 'Fuel Efficiency' you input. Real-world MPG varies significantly based on driving conditions, maintenance, load, and driving style. The calculator provides an estimate based on your provided data.

Q4: Can this calculator estimate costs for electric vehicles?

Not directly. For EVs, you would need to adapt the inputs. 'Fuel Efficiency' would be in kWh/100 miles or km, and 'Fuel Price' would be the cost per kWh of electricity. The core logic remains similar but requires unit conversion.

Q5: What if I need to calculate the distance between two specific addresses?

This calculator requires you to input the distance manually. For calculating distances between addresses, you would need a dedicated mapping and routing service.

Q6: Does the calculator account for traffic?

It accounts for traffic only indirectly through the 'Average Speed' input. If you anticipate heavy traffic, use a lower average speed for a more realistic time estimate.

Q7: How do I handle different fuel prices along my route?

The calculator uses a single 'Fuel Price' input. For routes with varying fuel costs, you might need to calculate segments separately or use an average price for budgeting purposes.

Q8: What does the chart represent?

The chart visually represents the relationship between the distance traveled and the cumulative fuel needed. It helps visualize fuel consumption patterns over the journey.

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var distanceInput = document.getElementById('distance'); var averageSpeedInput = document.getElementById('averageSpeed'); var fuelEfficiencyInput = document.getElementById('fuelEfficiency'); var fuelPriceInput = document.getElementById('fuelPrice'); var unitSelect = document.getElementById('unit'); var distanceError = document.getElementById('distanceError'); var averageSpeedError = document.getElementById('averageSpeedError'); var fuelEfficiencyError = document.getElementById('fuelEfficiencyError'); var fuelPriceError = document.getElementById('fuelPriceError'); var resultsContainer = document.getElementById('resultsContainer'); var totalTimeDisplay = document.getElementById('totalTime'); var totalFuelDisplay = document.getElementById('totalFuel'); var estimatedCostDisplay = document.getElementById('estimatedCost'); var resultDistanceUnitDisplay = document.getElementById('resultDistanceUnit'); var resultSpeedUnitDisplay = document.getElementById('resultSpeedUnit'); var resultFuelUnitDisplay = document.getElementById('resultFuelUnit'); var costBreakdownTableBody = document.getElementById('costBreakdownTableBody'); var tripAnalysisChart = null; var chartContext = document.getElementById('tripAnalysisChart').getContext('2d'); function validateInput(inputElement, errorElement, minValue, maxValue, unitLabel) { var value = parseFloat(inputElement.value); var isValid = true; errorElement.style.display = 'none'; errorElement.textContent = "; if (isNaN(value) || inputElement.value.trim() === ") { errorElement.textContent = 'This field is required.'; errorElement.style.display = 'block'; isValid = false; } else if (value 200) { errorElement.textContent = 'Speed seems too high. Please check.'; errorElement.style.display = 'block'; isValid = false; } else if (inputElement.id === 'fuelEfficiency' && unitLabel === 'MPG' && value > 100) { errorElement.textContent = 'MPG seems too high. Please check.'; errorElement.style.display = 'block'; isValid = false; } else if (inputElement.id === 'fuelEfficiency' && unitLabel === 'L/100km' && value 10) { errorElement.textContent = 'Fuel price seems too high. Please check.'; errorElement.style.display = 'block'; isValid = false; } return isValid; } function calculateDistance() { var distance = parseFloat(distanceInput.value); var averageSpeed = parseFloat(averageSpeedInput.value); var fuelEfficiency = parseFloat(fuelEfficiencyInput.value); var fuelPrice = parseFloat(fuelPriceInput.value); var unit = unitSelect.value; var distanceUnit = "; var speedUnit = "; var fuelUnit = "; var efficiencyIsLPer100km = false; if (unit === 'miles_gallons') { distanceUnit = 'miles'; speedUnit = 'mph'; fuelUnit = 'gallons'; efficiencyIsLPer100km = false; } else { // km_liters distanceUnit = 'km'; speedUnit = 'km/h'; fuelUnit = 'liters'; efficiencyIsLPer100km = true; } resultDistanceUnitDisplay.textContent = distanceUnit; resultSpeedUnitDisplay.textContent = speedUnit; resultFuelUnitDisplay.textContent = fuelUnit; var isDistanceValid = validateInput(distanceInput, distanceError, 1, 10000, distanceUnit); var isSpeedValid = validateInput(averageSpeedInput, averageSpeedError, 10, 150, speedUnit); var isEfficiencyValid = validateInput(fuelEfficiencyInput, fuelEfficiencyError, 1, 100, fuelUnit); var isPriceValid = validateInput(fuelPriceInput, fuelPriceError, 1, 10, fuelUnit); if (!isDistanceValid || !isSpeedValid || !isEfficiencyValid || !isPriceValid) { resultsContainer.style.display = 'none'; return; } var timeInHours = distance / averageSpeed; var totalFuelNeeded; var estimatedCost; if (efficiencyIsLPer100km) { // Fuel Efficiency is L/100km totalFuelNeeded = (distance / 100) * fuelEfficiency; } else { // Fuel Efficiency is MPG totalFuelNeeded = distance / fuelEfficiency; } estimatedCost = totalFuelNeeded * fuelPrice; // Format Time var hours = Math.floor(timeInHours); var minutes = Math.floor((timeInHours – hours) * 60); var seconds = Math.floor(((timeInHours – hours) * 60 – minutes) * 60); var formattedTime = String(hours).padStart(2, '0') + ':' + String(minutes).padStart(2, '0') + ':' + String(seconds).padStart(2, '0'); // Format Currency and Fuel var formattedFuel = totalFuelNeeded.toFixed(2) + ' ' + fuelUnit; var formattedCost = '$' + estimatedCost.toFixed(2); // Assuming USD for display, adjust if needed if (unit === 'km_liters') { formattedCost = '€' + estimatedCost.toFixed(2); // Assuming EUR for km/liters } totalTimeDisplay.textContent = formattedTime; totalFuelDisplay.textContent = formattedFuel; estimatedCostDisplay.textContent = formattedCost; resultsContainer.style.display = 'block'; updateChart(distance, totalFuelNeeded, unit); updateCostBreakdownTable(distance, distanceUnit, totalFuelNeeded, fuelUnit, estimatedCost, fuelPrice, unit); } function updateChart(totalDistance, totalFuel, unit) { if (tripAnalysisChart) { tripAnalysisChart.destroy(); } var segments = 5; // Number of segments for the chart var segmentDistance = totalDistance / segments; var segmentFuel = totalFuel / segments; var labels = []; var fuelData = []; var distanceData = []; // Added for a second series for (var i = 1; i <= segments; i++) { labels.push('Segment ' + i); fuelData.push(segmentFuel * i); distanceData.push(segmentDistance * i); } tripAnalysisChart = new Chart(chartContext, { type: 'line', data: { labels: labels, datasets: [{ label: 'Total Fuel Needed (' + (unit === 'miles_gallons' ? 'gallons' : 'liters') + ')', data: fuelData, borderColor: 'var(–primary-color)', backgroundColor: 'rgba(0, 74, 153, 0.2)', fill: true, tension: 0.1 }, { label: 'Total Distance Covered (' + (unit === 'miles_gallons' ? 'miles' : 'km') + ')', data: distanceData, borderColor: 'var(–success-color)', backgroundColor: 'rgba(40, 167, 69, 0.2)', fill: true, tension: 0.1 }] }, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: true, title: { display: true, text: 'Value' } }, x: { title: { display: true, text: 'Trip Segment' } } }, plugins: { legend: { position: 'top', }, title: { display: true, text: 'Fuel Consumption and Distance Progression' } } } }); } function updateCostBreakdownTable(totalDistance, distanceUnit, totalFuel, fuelUnit, estimatedCost, fuelPrice, unit) { var tableBody = document.getElementById('costBreakdownTableBody'); tableBody.innerHTML = ''; // Clear previous rows var segments = 5; var segmentDistance = totalDistance / segments; var segmentFuel = totalFuel / segments; var segmentCost = estimatedCost / segments; for (var i = 1; i <= segments; i++) { var row = tableBody.insertRow(); var cell1 = row.insertCell(0); var cell2 = row.insertCell(1); var cell3 = row.insertCell(2); var cell4 = row.insertCell(3); cell1.textContent = 'Segment ' + i; cell2.textContent = segmentDistance.toFixed(1) + ' ' + distanceUnit; cell3.textContent = segmentFuel.toFixed(2) + ' ' + fuelUnit; var currentSegmentCost = segmentFuel * fuelPrice; // Recalculate for accuracy per segment cell4.textContent = (unit === 'miles_gallons' ? '$' : '€') + currentSegmentCost.toFixed(2); } // Add a total row var totalRow = tableBody.insertRow(); totalRow.style.fontWeight = 'bold'; totalRow.style.backgroundColor = '#e9ecef'; // Light grey background for total var cellTotal1 = totalRow.insertCell(0); var cellTotal2 = totalRow.insertCell(1); var cellTotal3 = totalRow.insertCell(2); var cellTotal4 = totalRow.insertCell(3); cellTotal1.textContent = 'Total'; cellTotal2.textContent = totalDistance.toFixed(1) + ' ' + distanceUnit; cellTotal3.textContent = totalFuel.toFixed(2) + ' ' + fuelUnit; cellTotal4.textContent = (unit === 'miles_gallons' ? '$' : '€') + estimatedCost.toFixed(2); } function resetCalculator() { distanceInput.value = '500'; averageSpeedInput.value = '60'; fuelEfficiencyInput.value = '30'; fuelPriceInput.value = '3.50'; unitSelect.value = 'miles_gallons'; distanceError.style.display = 'none'; averageSpeedError.style.display = 'none'; fuelEfficiencyError.style.display = 'none'; fuelPriceError.style.display = 'none'; resultsContainer.style.display = 'none'; if (tripAnalysisChart) { tripAnalysisChart.destroy(); tripAnalysisChart = null; } costBreakdownTableBody.innerHTML = 'Enter inputs to see breakdown.'; } function copyResults() { var distance = distanceInput.value; var averageSpeed = averageSpeedInput.value; var fuelEfficiency = fuelEfficiencyInput.value; var fuelPrice = fuelPriceInput.value; var unit = unitSelect.options[unitSelect.selectedIndex].text; var totalTime = totalTimeDisplay.textContent; var totalFuel = totalFuelDisplay.textContent; var estimatedCost = estimatedCostDisplay.textContent; var assumptions = "Key Assumptions:\n"; assumptions += "- Distance: " + distance + " " + resultDistanceUnitDisplay.textContent + "\n"; assumptions += "- Average Speed: " + averageSpeed + " " + resultSpeedUnitDisplay.textContent + "\n"; assumptions += "- Fuel Efficiency: " + fuelEfficiency + " " + (unit.includes('Miles') ? 'MPG' : 'L/100km') + "\n"; assumptions += "- Fuel Price: " + fuelPrice + " per " + (unit.includes('Miles') ? 'gallon' : 'liter') + "\n"; assumptions += "- Units: " + unit + "\n\n"; var resultsText = "Trip Summary:\n"; resultsText += "Total Time: " + totalTime + "\n"; resultsText += "Total Fuel Needed: " + totalFuel + "\n"; resultsText += "Estimated Fuel Cost: " + estimatedCost + "\n\n"; resultsText += assumptions; // Use a temporary textarea to copy text var textArea = document.createElement("textarea"); textArea.value = resultsText; textArea.style.position = "fixed"; textArea.style.left = "-9999px"; document.body.appendChild(textArea); textArea.focus(); textArea.select(); try { var successful = document.execCommand('copy'); var msg = successful ? 'Results copied!' : 'Copy failed!'; alert(msg); } catch (err) { alert('Oops, unable to copy'); } document.body.removeChild(textArea); } // Initial calculation on load if default values are present document.addEventListener('DOMContentLoaded', function() { // Check if inputs have default values before calculating if (distanceInput.value && averageSpeedInput.value && fuelEfficiencyInput.value && fuelPriceInput.value) { calculateDistance(); } }); // Add event listeners for real-time updates distanceInput.addEventListener('input', calculateDistance); averageSpeedInput.addEventListener('input', calculateDistance); fuelEfficiencyInput.addEventListener('input', calculateDistance); fuelPriceInput.addEventListener('input', calculateDistance); unitSelect.addEventListener('change', calculateDistance);

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