How to calculate fuel consumption per litre

The fuel consumption calculator is our simple tool that helps you estimate your vehicle’s fuel efficiency and calculate the cost of driving based on your fuel consumption and gas prices. Here’s a short guide on how to use it:

Key Takeaways

  • To do the calculation, you need to note the odometer readings before and after filling up. Also, record how much fuel you put in to fill the tank.
  • Getting good at this calculation can help you change your driving habits to save on fuel.
  • Things like your driving style, the weather, and keeping your car in good shape can affect how accurate your fuel use measurements are.

Fuel Consumption vs. Fuel Economy

While often used interchangeably, these terms have distinct meanings:

MetricDefinitionUnit
Fuel ConsumptionAmount of fuel used per distanceL/100 km
Fuel EconomyDistance traveled per unit of fuelMPG or km/L

Why Measure Fuel Consumption?

  1. Track fuel usage and identify efficiency improvements
  2. Compare different vehicle models
  3. Budget and manage operational costs

The Fuel Consumption Formula

Our tool at fuelconsumptioncalculator.com uses the following formula:

Fuel Consumption (L/100 km) = (Litres Used × 100) ÷ Kilometers Traveled

Step-by-Step Guide to Calculate Fuel Consumption

  1. Fill your tank and reset the trip counter
  2. Drive a known distance
  3. Refill and note the amount of fuel used
  4. Apply the formula

Example Calculation

MetricValue
Distance Traveled500 km
Fuel Used65 L
Fuel Consumption13 L/100 km

Calculation: (65 × 100) ÷ 500 = 13 L/100 km

Converting Units

To convert between L/100 km and MPG, use this formula:

MPG = 282.481 ÷ (L/100 km)
L/100 kmMPG
7.537.66

Factors Affecting Fuel Consumption

  • Driving style
  • Vehicle weight
  • Road conditions
  • Weather
  • Engine performance

Tips for Improving Fuel Efficiency

  1. Drive smoothly and adhere to speed limits
  2. Maintain proper tire pressure
  3. Avoid excessive idling
  4. Perform regular vehicle maintenance