Gas Calculator Trip

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Trip Fuel Cost Calculator

Plan your journey and estimate your gas expenses

miles/km
MPG L/100km
$
Estimated Total Cost $0.00
Fuel Required 0.00 units

How to Calculate Your Trip Gas Cost

Whether you are planning a weekend getaway or a cross-country move, knowing your estimated fuel cost is essential for travel budgeting. This calculator helps you determine the amount of fuel you will consume and the total price you will pay at the pump based on current gas prices.

The Calculation Formula

The math behind the gas calculator trip depends on the efficiency metric you use:

  • MPG (Miles Per Gallon): Cost = (Distance / MPG) × Price per Gallon
  • L/100km: Cost = (Distance / 100) × L/100km Rate × Price per Liter

Example Scenario

Imagine you are driving from Los Angeles to Las Vegas, a distance of approximately 270 miles. If your car averages 25 MPG and gas is priced at $4.50 per gallon:

270 miles / 25 MPG = 10.8 Gallons Required
10.8 Gallons × $4.50 = $48.60 Total Cost

Tips for Saving Gas on Your Trip

  • Maintain Steady Speeds: Rapid acceleration and hard braking can lower your fuel economy by up to 30%.
  • Check Tire Pressure: Under-inflated tires increase rolling resistance, which consumes more gas.
  • Lighten the Load: Remove unnecessary items from your trunk or roof rack to reduce weight and drag.
  • Use Cruise Control: On flat highways, cruise control helps maintain a constant speed, saving fuel.
function calculateTripFuel() { var distance = parseFloat(document.getElementById('tripDistance').value); var efficiency = parseFloat(document.getElementById('fuelEfficiency').value); var price = parseFloat(document.getElementById('gasPrice').value); var unitType = document.getElementById('efficiencyUnit').value; var resultDiv = document.getElementById('gasResultArea'); var costDisplay = document.getElementById('totalTripCost'); var fuelDisplay = document.getElementById('totalFuelNeeded'); if (isNaN(distance) || isNaN(efficiency) || isNaN(price) || distance <= 0 || efficiency <= 0 || price <= 0) { alert("Please enter valid positive numbers for all fields."); return; } var fuelRequired = 0; var totalCost = 0; var unitLabel = (unitType === 'mpg') ? " Gallons" : " Liters"; if (unitType === 'mpg') { // Calculation for MPG fuelRequired = distance / efficiency; totalCost = fuelRequired * price; } else { // Calculation for L/100km fuelRequired = (distance / 100) * efficiency; totalCost = fuelRequired * price; } costDisplay.innerHTML = "$" + totalCost.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); fuelDisplay.innerHTML = fuelRequired.toFixed(2) + unitLabel; resultDiv.style.display = 'block'; }

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