Gas Calculation Cost

Gas Cost Calculator: Calculate Your Fuel Expenses :root { –primary-color: #004a99; –success-color: #28a745; –background-color: #f8f9fa; –text-color: #333; –border-color: #ddd; –card-background: #fff; –shadow: 0 4px 8px 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; display: flex; flex-direction: column; align-items: center; } .container { width: 100%; max-width: 960px; margin: 20px auto; padding: 20px; background-color: var(–card-background); border-radius: 8px; box-shadow: var(–shadow); } header { background-color: var(–primary-color); color: white; padding: 20px 0; text-align: center; width: 100%; } header h1 { margin: 0; font-size: 2.5em; } main { width: 100%; } section { margin-bottom: 30px; padding: 25px; background-color: var(–card-background); border-radius: 8px; box-shadow: var(–shadow); } h2, h3 { color: var(–primary-color); margin-bottom: 15px; } .loan-calc-container { margin-bottom: 25px; padding: 20px; border: 1px solid var(–border-color); border-radius: 8px; background-color: #fdfdfd; } .input-group { margin-bottom: 20px; width: 100%; } .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 { outline: none; border-color: var(–primary-color); 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: red; 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: 20px; 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; } button.primary { background-color: var(–primary-color); color: white; } button.primary:hover { background-color: #003366; } button.secondary { background-color: #6c757d; color: white; } button.secondary:hover { background-color: #5a6268; } button.success { background-color: var(–success-color); color: white; } button.success:hover { background-color: #218838; } #results { margin-top: 25px; padding: 20px; border: 1px solid var(–border-color); border-radius: 8px; background-color: #eef7ff; text-align: center; } #results h3 { margin-top: 0; color: var(–primary-color); } .result-item { margin-bottom: 15px; } .result-item span { font-weight: bold; font-size: 1.2em; color: var(–primary-color); } .main-result { font-size: 2em; color: var(–success-color); margin-bottom: 20px; padding: 15px; background-color: #dff0d8; border-radius: 5px; display: inline-block; } .formula-explanation { font-size: 0.9em; color: #555; margin-top: 15px; padding-top: 15px; border-top: 1px dashed var(–border-color); } table { width: 100%; border-collapse: collapse; margin-top: 20px; } th, td { padding: 10px; border: 1px solid var(–border-color); text-align: left; } th { background-color: var(–primary-color); color: white; font-weight: bold; } 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 { max-width: 100%; height: auto; margin-top: 20px; border: 1px solid var(–border-color); border-radius: 4px; } .chart-container { text-align: center; margin-top: 20px; } .chart-legend { margin-top: 10px; font-size: 0.9em; color: #555; } .chart-legend span { display: inline-block; margin: 0 10px; } .chart-legend .color-box { display: inline-block; width: 15px; height: 15px; margin-right: 5px; vertical-align: middle; } .chart-legend .color-primary { background-color: var(–primary-color); } .chart-legend .color-success { background-color: var(–success-color); } .article-content { margin-top: 30px; padding: 25px; background-color: var(–card-background); border-radius: 8px; box-shadow: var(–shadow); } .article-content h2 { border-bottom: 2px solid var(–primary-color); padding-bottom: 5px; } .article-content h3 { color: #0056b3; margin-top: 20px; } .article-content p { margin-bottom: 15px; } .article-content ul, .article-content ol { margin-left: 20px; margin-bottom: 15px; } .article-content li { margin-bottom: 8px; } .article-content strong { color: var(–primary-color); } .internal-links { margin-top: 25px; padding: 20px; background-color: var(–card-background); border-radius: 8px; box-shadow: var(–shadow); } .internal-links h3 { margin-top: 0; color: var(–primary-color); } .internal-links ul { list-style: none; padding: 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; } @media (max-width: 768px) { .container { margin: 10px; padding: 15px; } header h1 { font-size: 1.8em; } button { padding: 10px 15px; font-size: 0.95em; } .button-group { flex-direction: column; align-items: center; } .button-group button { width: 100%; margin-bottom: 10px; } .button-group button:last-child { margin-bottom: 0; } }

Gas Cost Calculator

Calculate Your Fuel Expenses

Enter the total distance you plan to travel (e.g., in miles or kilometers).
Miles Kilometers Select the unit for your distance.
Enter your vehicle's fuel efficiency (e.g., MPG for miles, L/100km for kilometers).
Enter the current price of fuel per unit (e.g., per gallon or per liter).
Per Gallon Per Liter Select the unit for your fuel price.

Your Estimated Gas Cost

$0.00
Fuel Needed: 0.00 Units
Cost Per Unit Distance: $0.00
Total Trip Cost: $0.00
The total gas cost is calculated by determining the total fuel needed for the trip and multiplying it by the price per unit of fuel. Fuel needed is derived from the distance traveled divided by the vehicle's fuel efficiency.
Fuel Needed Total Cost
Fuel Consumption and Cost Breakdown
Metric Value Unit
Distance Traveled 0.00 Units
Fuel Efficiency 0.00 Units/Fuel Unit
Fuel Price 0.00 $/Fuel Unit
Fuel Needed 0.00 Fuel Units
Cost Per Unit Distance $0.00 $/Unit Distance
Total Trip Cost $0.00 $
Detailed Gas Cost Calculation Metrics

What is Gas Cost Calculation?

Gas cost calculation refers to the process of estimating the total expense incurred for fuel consumption over a specific period or distance. This involves understanding your vehicle's fuel efficiency, the distance you intend to travel, and the current price of fuel. Accurate gas cost calculation is crucial for budgeting personal finances, planning road trips, managing fleet expenses for businesses, and making informed decisions about vehicle maintenance and fuel choices. It helps individuals and organizations anticipate and control one of the most significant variable costs associated with operating a vehicle.

Who Should Use Gas Cost Calculation?

Virtually anyone who owns or operates a vehicle can benefit from understanding gas cost calculation. This includes:

  • Individual Drivers: For personal budgeting, planning weekend getaways, or simply understanding daily commuting expenses.
  • Fleet Managers: Businesses with multiple vehicles need to track and optimize fuel spending to maintain profitability.
  • Delivery Services & Logistics Companies: Fuel is a major operational cost, and precise calculation helps in pricing services and managing routes efficiently.
  • Travel Planners: When planning road trips, estimating fuel costs is essential for setting a realistic travel budget.
  • Environmentally Conscious Individuals: Understanding fuel consumption can motivate efforts to improve fuel efficiency and reduce carbon footprint.

Common Misconceptions about Gas Cost Calculation

Several common misconceptions can lead to inaccurate estimations or poor financial planning:

  • "My car's MPG is fixed": Fuel efficiency varies significantly based on driving conditions (city vs. highway), driving habits (speeding, rapid acceleration), vehicle maintenance, tire pressure, and load.
  • "Fuel prices are stable": Fuel prices are highly volatile, influenced by global markets, geopolitical events, and local supply and demand. Relying on outdated price data leads to incorrect cost projections.
  • "Only the price of gas matters": While fuel price is a primary factor, other costs like vehicle maintenance, insurance, and depreciation also contribute to the total cost of ownership, though they are not directly part of the gas cost calculation itself.
  • "Calculating gas cost is too complicated": With modern tools like this gas cost calculator, the process is simplified, requiring only a few key inputs.

By demystifying these points, individuals can approach gas cost calculation with a clearer understanding and achieve more accurate results.

Gas Cost Calculation Formula and Mathematical Explanation

The core of gas cost calculation relies on a straightforward yet powerful formula that breaks down the expense into manageable components. We aim to determine the total expenditure for fuel required to cover a specific distance.

Step-by-Step Derivation

  1. Calculate Fuel Needed: First, we determine how much fuel your vehicle will consume for the given distance. This is found by dividing the total distance traveled by your vehicle's fuel efficiency.
  2. Calculate Total Cost: Once we know the total amount of fuel needed, we multiply this quantity by the price of fuel per unit.

Variable Explanations

To perform the calculation, we need the following key variables:

  • Distance Traveled: The total length of the journey you intend to make.
  • Fuel Efficiency: How far your vehicle can travel on a single unit of fuel (e.g., miles per gallon or kilometers per liter).
  • Fuel Price: The cost of one unit of fuel (e.g., price per gallon or price per liter).

The Formula

The primary formula for calculating the total gas cost is:

Total Gas Cost = (Distance Traveled / Fuel Efficiency) * Fuel Price

We also derive intermediate values:

  • Fuel Needed = Distance Traveled / Fuel Efficiency
  • Cost Per Unit Distance = Fuel Price / Fuel Efficiency (This is essentially the cost to travel one unit of distance)

Variables Table

Variables Used in Gas Cost Calculation
Variable Meaning Unit Typical Range
Distance Traveled Total length of the journey. Miles (mi) or Kilometers (km) 10 – 10,000+ mi/km
Fuel Efficiency Distance covered per unit of fuel. Miles Per Gallon (MPG) or Liters per 100 Kilometers (L/100km) 15 – 60 MPG or 4 – 15 L/100km
Fuel Price Cost of one unit of fuel. USD per Gallon ($/gal) or USD per Liter ($/L) $2.00 – $7.00 per unit
Fuel Needed Total volume of fuel required for the trip. Gallons (gal) or Liters (L) Calculated value
Cost Per Unit Distance Cost to travel one mile or kilometer. USD per Mile ($/mi) or USD per Kilometer ($/km) Calculated value
Total Gas Cost Total expense for fuel for the entire trip. USD ($) Calculated value

Practical Examples (Real-World Use Cases)

Understanding the theory is one thing, but seeing how gas cost calculation works in practice makes it much clearer. Here are a couple of real-world scenarios:

Example 1: Planning a Weekend Road Trip

Sarah is planning a round trip to visit her family. The total distance is 400 miles. Her car gets an average of 30 MPG, and the current price of gasoline is $3.80 per gallon.

  • Distance Traveled: 400 miles
  • Fuel Efficiency: 30 MPG
  • Fuel Price: $3.80 per gallon

Calculation:

  • Fuel Needed = 400 miles / 30 MPG = 13.33 gallons
  • Total Gas Cost = 13.33 gallons * $3.80/gallon = $50.67

Interpretation: Sarah can budget approximately $50.67 for gasoline for her weekend trip. This helps her manage her travel expenses effectively.

Example 2: Business Delivery Route Optimization

A small business owner, David, operates a delivery van that consumes 12 liters of fuel per 100 kilometers (L/100km). He needs to cover a total distance of 600 kilometers today. The price of diesel is $1.50 per liter.

  • Distance Traveled: 600 km
  • Fuel Efficiency: 12 L/100km (which means 100km / 12L = 8.33 km/L)
  • Fuel Price: $1.50 per liter

Calculation:

  • Fuel Needed = (600 km / 100 km) * 12 L = 6 * 12 L = 72 liters
  • Alternatively, using km/L: Fuel Needed = 600 km / 8.33 km/L = 72 liters
  • Total Gas Cost = 72 liters * $1.50/liter = $108.00

Interpretation: David estimates that his delivery route today will cost him $108.00 in diesel fuel. This information is vital for pricing his delivery services competitively and ensuring profitability.

These examples highlight how the gas cost calculation is a practical tool for financial planning and operational efficiency in various contexts. For more precise calculations tailored to your specific situation, use our interactive Gas Cost Calculator.

How to Use This Gas Cost Calculator

Our Gas Cost Calculator is designed for simplicity and accuracy. Follow these steps to get your fuel cost estimates:

  1. Enter Distance Traveled: Input the total distance you plan to cover. Specify the unit (miles or kilometers) using the dropdown menu.
  2. Input Fuel Efficiency: Enter your vehicle's fuel efficiency. If you used miles for distance, enter MPG (Miles Per Gallon). If you used kilometers, enter L/100km (Liters per 100 Kilometers).
  3. Specify Fuel Price: Enter the current cost of fuel. Select the corresponding unit (per gallon or per liter) based on your local pricing.
  4. Click 'Calculate Cost': Once all fields are populated, click the button. The calculator will instantly display your estimated total gas cost, fuel needed, and cost per unit distance.
  5. Review Results: Examine the main highlighted result (Total Trip Cost) and the intermediate values for Fuel Needed and Cost Per Unit Distance. The table provides a detailed breakdown.
  6. Use 'Copy Results': If you need to share these figures or save them, click 'Copy Results'. This will copy all calculated values and key assumptions to your clipboard.
  7. Use 'Reset': To start over with default values, click the 'Reset' button.

How to Read Results

  • Main Result (Total Trip Cost): This is your primary estimate for the total amount you'll spend on fuel for the specified distance.
  • Fuel Needed: Shows the total volume of fuel (gallons or liters) your vehicle will consume.
  • Cost Per Unit Distance: Indicates how much it costs to travel one mile or one kilometer. This is useful for comparing the running costs of different vehicles or routes.
  • Table Breakdown: Provides a comprehensive view of all input values and calculated metrics for clarity.

Decision-Making Guidance

Use the results to:

  • Budget: Allocate the necessary funds for your trip or regular commute.
  • Compare Options: Evaluate the fuel cost implications of different routes or modes of transport.
  • Optimize: Understand how changes in fuel efficiency or price impact your overall expenses. For instance, improving MPG by 5 points can significantly reduce long-term costs.
  • Plan Maintenance: Poor fuel efficiency might indicate a need for vehicle maintenance.

This gas cost calculation tool empowers you to make informed financial decisions related to your vehicle's operation.

Key Factors That Affect Gas Cost Results

While the calculator provides a solid estimate, several real-world factors can influence your actual gas costs. Understanding these can help you refine your expectations and planning:

  1. Driving Habits: Aggressive driving (rapid acceleration, hard braking) significantly increases fuel consumption compared to smooth, steady driving. Maintaining a consistent speed, especially on highways, is key to maximizing fuel efficiency.
  2. Vehicle Maintenance: A well-maintained vehicle runs more efficiently. Issues like underinflated tires, clogged air filters, or worn spark plugs can reduce MPG and increase fuel costs. Regular servicing is essential.
  3. Terrain and Traffic Conditions: Driving uphill requires more energy and thus more fuel. Stop-and-go traffic in urban areas is less fuel-efficient than consistent highway driving due to frequent acceleration and idling.
  4. Vehicle Load and Aerodynamics: Carrying heavy loads or using roof racks increases the vehicle's weight and aerodynamic drag, both of which lead to higher fuel consumption.
  5. Fuel Quality and Type: While less common, the specific blend or octane rating of fuel can sometimes subtly affect efficiency. Also, switching between gasoline and diesel (if applicable) drastically changes costs.
  6. Environmental Factors: Extreme temperatures can affect engine performance and tire pressure. Cold weather generally reduces fuel efficiency. Wind resistance also plays a role, especially at higher speeds.
  7. Fuel Price Volatility: The price of gas fluctuates daily due to market forces, geopolitical events, and seasonal demand. The calculator uses a snapshot price; actual costs may vary if prices change during your trip or over time.
  8. Idling Time: Leaving the engine running while stationary consumes fuel without covering any distance. Minimizing idling time, especially in situations like waiting for passengers or deliveries, can save fuel.

Considering these factors alongside the calculator's output provides a more realistic picture of your overall fuel expenses. For businesses, understanding these variables is crucial for accurate fleet fuel management.

Frequently Asked Questions (FAQ)

Q1: How accurate is the gas cost calculation?
The accuracy depends on the precision of your inputs (distance, efficiency, price) and the consistency of driving conditions. The calculator provides a strong estimate based on the data you provide.
Q2: What if my car's MPG is different on the highway versus in the city?
This calculator uses a single fuel efficiency figure. For more detailed planning, you can run the calculation twice: once with your highway MPG for highway driving, and again with your city MPG for city driving, adjusting the distance accordingly.
Q3: How do I find my car's fuel efficiency (MPG or L/100km)?
You can find this information in your vehicle's owner's manual, on the manufacturer's website, or by tracking your fuel consumption over several fill-ups. Many modern cars also display this information on their dashboard.
Q4: Does the calculator account for taxes on fuel?
The calculator uses the price you input, which typically includes all applicable taxes. If you know the pre-tax fuel price, you would need to add the relevant taxes yourself before entering it.
Q5: What is a reasonable range for 'Cost Per Unit Distance'?
This varies greatly. For a car getting 30 MPG at $3.00/gallon, the cost per mile is $0.10 ($3.00 / 30). For a less efficient vehicle or higher fuel prices, this cost will increase. It's a good metric for comparing vehicle running costs.
Q6: Can I use this calculator for different types of fuel, like diesel or electric?
The calculator is designed for gasoline/petrol and diesel. For electric vehicles, you would calculate cost based on electricity price per kWh and the vehicle's kWh/mile consumption.
Q7: How often should I recalculate my gas costs?
Recalculate whenever fuel prices change significantly, you undertake a long trip, or you notice a change in your vehicle's performance. Regular checks help maintain accurate budgeting.
Q8: What if I travel a very long distance? Does the calculation change?
The formula remains the same. However, for extremely long distances, factors like potential price changes along the route, vehicle wear and tear, and the need for multiple fuel stops become more significant considerations.
© 2023 Your Financial Website. All rights reserved.
var distanceInput = document.getElementById('distance'); var unitSelect = document.getElementById('unit'); var fuelEfficiencyInput = document.getElementById('fuelEfficiency'); var fuelPriceInput = document.getElementById('fuelPrice'); var priceUnitSelect = document.getElementById('priceUnit'); var mainResultDisplay = document.getElementById('main-result'); var fuelNeededDisplay = document.getElementById('fuelNeeded'); var fuelNeededUnitDisplay = document.getElementById('fuelNeededUnit'); var costPerUnitDistanceDisplay = document.getElementById('costPerUnitDistance'); var totalTripCostDisplay = document.getElementById('totalTripCost'); var tableDistance = document.getElementById('tableDistance'); var tableDistanceUnit = document.getElementById('tableDistanceUnit'); var tableFuelEfficiency = document.getElementById('tableFuelEfficiency'); var tableFuelEfficiencyUnit = document.getElementById('tableFuelEfficiencyUnit'); var tableFuelPrice = document.getElementById('tableFuelPrice'); var tablePriceUnit = document.getElementById('tablePriceUnit'); var tableFuelNeeded = document.getElementById('tableFuelNeeded'); var tableFuelNeededUnit = document.getElementById('tableFuelNeededUnit'); var tableCostPerUnitDistance = document.getElementById('tableCostPerUnitDistance'); var tableTotalTripCost = document.getElementById('tableTotalTripCost'); var distanceError = document.getElementById('distance-error'); var fuelEfficiencyError = document.getElementById('fuelEfficiency-error'); var fuelPriceError = document.getElementById('fuelPrice-error'); var chart; var chartContext; function formatCurrency(amount) { return "$" + amount.toFixed(2); } function formatNumber(num) { return num.toFixed(2); } function updateChart(fuelNeeded, totalCost) { if (chart) { chart.destroy(); } chartContext = document.getElementById('costChart').getContext('2d'); chart = new Chart(chartContext, { type: 'bar', data: { labels: ['Fuel Needed', 'Total Cost'], datasets: [{ label: 'Amount', data: [fuelNeeded, totalCost], backgroundColor: [ 'rgba(0, 74, 153, 0.6)', // Primary color for Fuel Needed 'rgba(40, 167, 69, 0.6)' // Success color for Total Cost ], borderColor: [ 'rgba(0, 74, 153, 1)', 'rgba(40, 167, 69, 1)' ], borderWidth: 1 }] }, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: true, ticks: { callback: function(value) { if (this.chart.data.labels[this.index] === 'Total Cost') { return formatCurrency(value); } return formatNumber(value); } } } }, plugins: { legend: { display: false // Legend is handled by custom div }, tooltip: { callbacks: { label: function(context) { var label = context.dataset.label || "; if (label) { label += ': '; } if (context.parsed.y !== null) { if (context.label === 'Total Cost') { label += formatCurrency(context.parsed.y); } else { label += formatNumber(context.parsed.y); } } return label; } } } } } }); } function calculateGasCost() { var distance = parseFloat(distanceInput.value); var unit = unitSelect.value; var fuelEfficiency = parseFloat(fuelEfficiencyInput.value); var fuelPrice = parseFloat(fuelPriceInput.value); var priceUnit = priceUnitSelect.value; var distanceErrorMsg = ""; var fuelEfficiencyErrorMsg = ""; var fuelPriceErrorMsg = ""; if (isNaN(distance) || distance <= 0) { distanceErrorMsg = "Please enter a valid positive distance."; distanceInput.style.borderColor = 'red'; } else { distanceInput.style.borderColor = '#ddd'; distanceError.classList.remove('visible'); } var effectiveFuelEfficiency; var fuelNeededUnitText = ""; var efficiencyUnitText = ""; if (unit === 'miles') { efficiencyUnitText = "MPG"; if (isNaN(fuelEfficiency) || fuelEfficiency <= 0) { fuelEfficiencyErrorMsg = "Please enter a valid positive fuel efficiency (e.g., 25 MPG)."; fuelEfficiencyInput.style.borderColor = 'red'; } else { effectiveFuelEfficiency = fuelEfficiency; // MPG fuelNeededUnitText = "Gallons"; fuelEfficiencyInput.style.borderColor = '#ddd'; fuelEfficiencyError.classList.remove('visible'); } } else { // kilometers efficiencyUnitText = "L/100km"; if (isNaN(fuelEfficiency) || fuelEfficiency <= 0) { fuelEfficiencyErrorMsg = "Please enter a valid positive fuel efficiency (e.g., 7 L/100km)."; fuelEfficiencyInput.style.borderColor = 'red'; } else { // Convert L/100km to km/L for calculation consistency effectiveFuelEfficiency = 100 / fuelEfficiency; // km/L fuelNeededUnitText = "Liters"; fuelEfficiencyInput.style.borderColor = '#ddd'; fuelEfficiencyError.classList.remove('visible'); } } var effectivePriceUnit = ""; if (priceUnit === 'gallon') { effectivePriceUnit = "/Gallon"; } else { effectivePriceUnit = "/Liter"; } if (isNaN(fuelPrice) || fuelPrice <= 0) { fuelPriceErrorMsg = "Please enter a valid positive fuel price."; fuelPriceInput.style.borderColor = 'red'; } else { fuelPriceInput.style.borderColor = '#ddd'; fuelPriceError.classList.remove('visible'); } if (distanceErrorMsg || fuelEfficiencyErrorMsg || fuelPriceErrorMsg) { if (distanceErrorMsg) distanceError.textContent = distanceErrorMsg; if (fuelEfficiencyErrorMsg) fuelEfficiencyError.textContent = fuelEfficiencyErrorMsg; if (fuelPriceErrorMsg) fuelPriceError.textContent = fuelPriceErrorMsg; distanceError.classList.add(distanceErrorMsg ? 'visible' : ''); fuelEfficiencyError.classList.add(fuelEfficiencyErrorMsg ? 'visible' : ''); fuelPriceError.classList.add(fuelPriceErrorMsg ? 'visible' : ''); return; } var fuelNeeded = distance / effectiveFuelEfficiency; var totalGasCost = fuelNeeded * fuelPrice; var costPerUnitDistance = fuelPrice / effectiveFuelEfficiency; mainResultDisplay.textContent = formatCurrency(totalGasCost); fuelNeededDisplay.textContent = formatNumber(fuelNeeded); fuelNeededUnitDisplay.textContent = fuelNeededUnitText; costPerUnitDistanceDisplay.textContent = formatCurrency(costPerUnitDistance); totalTripCostDisplay.textContent = formatCurrency(totalGasCost); // Update table tableDistance.textContent = formatNumber(distance); tableDistanceUnit.textContent = unit; tableFuelEfficiency.textContent = formatNumber(parseFloat(fuelEfficiencyInput.value)); // Show original input value tableFuelEfficiencyUnit.textContent = (unit === 'miles' ? 'MPG' : 'L/100km'); tableFuelPrice.textContent = formatNumber(fuelPrice); tablePriceUnit.textContent = effectivePriceUnit; tableFuelNeeded.textContent = formatNumber(fuelNeeded); tableFuelNeededUnit.textContent = fuelNeededUnitText; tableCostPerUnitDistance.textContent = formatCurrency(costPerUnitDistance); tableTotalTripCost.textContent = formatCurrency(totalGasCost); // Update chart updateChart(fuelNeeded, totalGasCost); } function resetCalculator() { distanceInput.value = 100; unitSelect.value = 'miles'; fuelEfficiencyInput.value = 25; fuelPriceInput.value = 3.50; priceUnitSelect.value = 'gallon'; distanceError.textContent = ""; fuelEfficiencyError.textContent = ""; fuelPriceError.textContent = ""; distanceError.classList.remove('visible'); fuelEfficiencyError.classList.remove('visible'); fuelPriceError.classList.remove('visible'); distanceInput.style.borderColor = '#ddd'; fuelEfficiencyInput.style.borderColor = '#ddd'; fuelPriceInput.style.borderColor = '#ddd'; calculateGasCost(); // Recalculate with default values } function copyResults() { var distance = parseFloat(distanceInput.value); var unit = unitSelect.value; var fuelEfficiency = parseFloat(fuelEfficiencyInput.value); var fuelPrice = parseFloat(fuelPriceInput.value); var priceUnit = priceUnitSelect.value; var fuelNeeded = parseFloat(fuelNeededDisplay.textContent); var fuelNeededUnit = fuelNeededUnitDisplay.textContent; var costPerUnitDistance = parseFloat(costPerUnitDistanceDisplay.textContent.replace(/[^0-9.-]+/g,"")); var totalTripCost = parseFloat(mainResultDisplay.textContent.replace(/[^0-9.-]+/g,"")); var textToCopy = "— Gas Cost Calculation Results —\n\n"; textToCopy += "Key Assumptions:\n"; textToCopy += "- Distance: " + formatNumber(distance) + " " + unit + "\n"; textToCopy += "- Fuel Efficiency: " + formatNumber(fuelEfficiency) + " " + (unit === 'miles' ? 'MPG' : 'L/100km') + "\n"; textToCopy += "- Fuel Price: " + formatCurrency(fuelPrice) + " " + priceUnit + "\n\n"; textToCopy += "Calculated Results:\n"; textToCopy += "- Fuel Needed: " + formatNumber(fuelNeeded) + " " + fuelNeededUnit + "\n"; textToCopy += "- Cost Per Unit Distance: " + formatCurrency(costPerUnitDistance) + "\n"; textToCopy += "- Total Trip Cost: " + formatCurrency(totalTripCost) + "\n"; navigator.clipboard.writeText(textToCopy).then(function() { alert('Results copied to clipboard!'); }, function(err) { console.error('Could not copy text: ', err); alert('Failed to copy results. Please copy manually.'); }); } // Initial calculation on page load document.addEventListener('DOMContentLoaded', function() { calculateGasCost(); });

Leave a Comment