What is the difference between MPG (US) and L/100km?

Miles Per Gallon (MPG) measures how far you travel on a gallon (higher is better), while Litres per 100km (L/100km) measures fuel consumed over distance (lower is better).

Does this fuel calculator save or transmit my travel information?

No. All calculations run strictly in your web browser. No locations, distances, or vehicle details are sent to any remote server.

Fuel Cost Calculator — Gas & Mileage Trip Cost Estimator

Accurate Fuel Cost Calculation for Any Journey

Whether you are planning a weekend road trip, tracking monthly commuting expenses, or coordinating a carpool split with coworkers, our free online Fuel Cost Calculator delivers instantaneous, precise cost breakdowns. It dynamically computes total distance, fuel consumption volume, aggregate costs, and per-passenger contributions in both Metric and Imperial units.

Mathematical Fuel Consumption Formulas

The math behind vehicle travel expenditure is straightforward:

Total Fuel Volume: Total Distance ÷ Vehicle Mileage
Total Journey Cost: Fuel Consumed × Price Per Unit
Cost Per Person (Carpool): Total Cost ÷ Total Travelers
Fuel Cost per 100 km / Miles: (Price Per Unit ÷ Mileage) × 100

Practical Tips to Maximize Vehicle Fuel Economy

Maintain Optimal Tire Pressure: Under-inflated tires increase rolling resistance, reducing fuel mileage by up to 3% to 5%.
Smooth Acceleration & Braking: Aggressive starts and heavy braking can waste up to 30% more petrol or diesel compared to smooth, anticipatory driving.
Cruise Control on Highways: Using cruise control on flat terrain helps maintain a steady engine RPM, dramatically cutting highway fuel consumption.
Reduce Excess Payload: Removing unnecessary luggage or rooftop racks lowers vehicular drag and engine workload.

Frequently Asked Questions (FAQ)

How do you calculate fuel cost for a road trip?

Divide your total travel distance by your vehicle's fuel efficiency to determine total fuel consumed. Multiply that number by the local price per litre or gallon to calculate your total cost.

How do I calculate cost per person for carpooling?

Take the total fuel expense calculated for the trip and divide it equally among all riders in the vehicle. Our tool automatically computes this when you adjust the traveler count.

What is the difference between MPG and km/L?

Both are distance-per-volume metrics. 1 km/L is approximately equal to 2.35 US MPG (or 2.82 Imperial MPG). In contrast, the European L/100km system measures fuel volume needed per 100 kilometres.

Are my route inputs or calculations stored on your server?

No. EasyToolz executes all calculations client-side in your web browser. No location coordinates, vehicle metrics, or trip logs are stored or monitored.