How to Calculate a Car's Fuel Consumption per 100 Kilometers?
2 Answers
Calculation method for a car's fuel consumption per 100 kilometers: Fuel consumption per 100 kilometers equals fuel consumption (liters) divided by travel distance (kilometers) multiplied by 100. The fuel consumption per 100 kilometers indicated in the manuals of domestic cars is generally the constant-speed fuel consumption. Constant-speed fuel consumption refers to the fuel economy indicator when the car is driving at a constant speed on a good road surface. Several key technologies related to fuel consumption include three main aspects: 1. The relationship between vehicle weight and fuel consumption is directly proportional. For every 10% reduction in vehicle weight, fuel consumption will also decrease by several percentage points; 2. Car design: a smaller aerodynamic drag of the car body will significantly reduce fuel consumption, and the relationship between these two is also directly proportional; 3. Driving conditions are an important factor affecting fuel consumption.
I think calculating a car's fuel consumption per 100 kilometers is quite simple, and the key is relying on actual data. First, fill up the tank until the pump automatically stops, and note the odometer reading, say 1000 kilometers. Then drive for a few hundred kilometers—the longer the distance, the more accurate the result. Next, refuel until the pump stops again and check how many liters were added. Finally, divide the liters added by the kilometers driven and multiply by 100. For example, if you added 10 liters and drove 200 kilometers, 10 divided by 200 gives 0.05, then multiplied by 100 equals 5 liters per 100 kilometers. After years of driving, I've found that road conditions and driving habits have a big impact. Driving steadily on highways can save fuel, while stop-and-go traffic increases consumption. Regularly calculating your fuel consumption can help you save money—it only takes a few minutes each month. I recommend keeping records in a notebook or a mobile app.
