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Fuel Cost Calculator

Estimate how much your trip will cost in fuel based on distance, fuel economy, and gas prices—supports both MPG and L/100km.

Calculate Fuel Cost

Estimated Fuel Cost:

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    ⛽ Overview: What This Fuel Cost Calculator Does

    This free online Fuel Cost Calculator helps drivers, commuters, and road trippers estimate the total gas or diesel cost for any journey. Just enter:

    • 🛣️ Total trip distance (km or miles)
    • 🚗 Your vehicle's fuel efficiency (MPG or L/100km)
    • ⛽ Current fuel price per liter or gallon
    • 💱 Your preferred currency symbol ($, €, £, etc.)

    You can toggle between metric (km, L/100km) and imperial (miles, MPG) units for maximum flexibility.

    🧮 Formula & Methodology

    The fuel cost is calculated using this basic equation:

    Fuel Cost = (Distance ÷ Fuel Efficiency) × Fuel Price

    Depending on your unit system:

    • Metric (L/100km):
      Fuel Used = (Distance × L/100km) ÷ 100
    • Imperial (MPG):
      Fuel Used = Distance ÷ MPG

    The tool automatically adjusts the math and units based on your selection and displays a breakdown of the total fuel needed and estimated trip cost.

    📊 Example Calculations

    • 🚘 Metric Example:
      Distance = 300 km
      Efficiency = 15 L/100km
      Price = €1.50 per liter
      Fuel used = (300 × 15) / 100 = 45 liters
      Total cost = 45 × €1.50 = €67.50
    • 🚙 Imperial Example:
      Distance = 300 miles
      Efficiency = 25 MPG
      Price = $3.50 per gallon
      Fuel used = 300 ÷ 25 = 12 gallons
      Total cost = 12 × $3.50 = $42.00

    🚗 Use Cases for This Tool

    • 📍 Planning a long-distance road trip or vacation
    • 🚘 Estimating commuting costs for work or school
    • 🧾 Budgeting transportation expenses for deliveries or business travel
    • 💬 Comparing gas vs. diesel vehicle costs
    • 🏡 Deciding whether to drive or use public transportation

    Whether you're commuting daily or preparing for a cross-country drive, this calculator helps avoid surprises at the pump.

    ❓ Frequently Asked Questions

    What is fuel efficiency?

    Fuel efficiency measures how far your vehicle travels per unit of fuel. In metric countries it's in L/100km (liters per 100 kilometers); in imperial, it’s MPG (miles per gallon).

    How does this calculator work?

    It calculates total fuel used based on distance and vehicle efficiency, then multiplies that by your input fuel price to get the trip cost.

    Can I use this tool in Europe or the US?

    Yes! The calculator supports both imperial and metric systems, so you can switch between miles vs. kilometers and MPG vs. L/100km easily.

    Does this include tolls or parking fees?

    No—it only calculates the estimated fuel cost. Tolls, parking, insurance, or maintenance are not included.

    Can I change the fuel currency?

    Yes. Choose your desired currency from the dropdown—€, $, £, ₹, ¥, etc.—and all costs will be displayed accordingly.

    Is this tool suitable for electric vehicles?

    Not directly. However, a dedicated EV cost calculator (based on kWh per km or mile) is in development.

    Can I compare different driving scenarios?

    Yes! Just enter new distances, fuel prices, or efficiencies to instantly see how changes impact fuel cost.