Diesel Petrol Fuel Consumption Calculator

Compare the fuel efficiency of diesel and petrol vehicles with our easy-to-use calculator. Understand how different fuel types affect your vehicle's fuel consumption and operating costs.

How to Use This Calculator

To calculate fuel consumption for both diesel and petrol vehicles, follow these steps:

Enter the distance traveled in kilometers or miles
Input the fuel efficiency for both diesel and petrol vehicles in liters per 100 kilometers (L/100km) or miles per gallon (mpg)
Select the fuel price for both diesel and petrol in your local currency
Click "Calculate" to see the results

The calculator will display the total fuel consumption and cost for both fuel types, allowing you to compare their efficiency.

Formula Used

The calculator uses the following formulas to determine fuel consumption and cost:

Fuel Consumption (Liters) = (Distance / Fuel Efficiency) * 100 Fuel Cost = Fuel Consumption * Fuel Price

Where:

Distance is the total distance traveled
Fuel Efficiency is the vehicle's fuel efficiency in L/100km or mpg
Fuel Price is the cost per liter or gallon

For miles per gallon (mpg) calculations, the formula converts mpg to L/100km for consistency.

Worked Example

Let's calculate fuel consumption for a 500 km trip with the following details:

Example Calculation

Distance: 500 km

Diesel Efficiency: 5.5 L/100km

Petrol Efficiency: 7.2 L/100km

Diesel Price: $1.50/L

Petrol Price: $1.30/L

Using the formula:

Diesel Consumption = (500 / 5.5) * 100 = 9090.91 L Diesel Cost = 9090.91 * 1.50 = $13,636.37 Petrol Consumption = (500 / 7.2) * 100 = 6944.44 L Petrol Cost = 6944.44 * 1.30 = $9,031.77

For this trip, petrol is more fuel-efficient and cheaper than diesel.

Diesel vs Petrol Comparison

Here's a comparison of typical fuel consumption characteristics for diesel and petrol vehicles:

Characteristic	Diesel	Petrol
Fuel Efficiency	Better (typically 20-30% better)	Less efficient
Cost per Liter	Higher (typically 10-20% more)	Lower
Emissions	Lower CO2 and particulate emissions	Higher CO2 and particulate emissions
Performance	Smoother acceleration	More responsive
Maintenance	Requires more frequent service	Lower maintenance costs

When choosing between diesel and petrol, consider your specific needs and priorities regarding fuel efficiency, cost, emissions, and performance.

FAQ

Which fuel is more fuel-efficient, diesel or petrol?

Diesel vehicles are typically more fuel-efficient than petrol vehicles, often achieving 20-30% better fuel economy. However, the actual efficiency depends on the specific vehicle models and driving conditions.

Is diesel more expensive than petrol?

Yes, diesel fuel is generally more expensive than petrol, typically by 10-20%. However, the higher cost is often offset by diesel's better fuel efficiency, making it more economical for long-distance travel.

Which fuel produces fewer emissions?

Diesel vehicles generally produce lower CO2 and particulate emissions compared to petrol vehicles. This makes diesel a more environmentally friendly choice for many applications.