How is the fuel consumption per 100 kilometers calculated?

[KendraMarie]

There are two methods to calculate fuel consumption per 100 kilometers: 1. Method one: The fuel consumption is calculated as 100/7.5=13.3 liters, and the fuel consumption per 100 kilometers is 13.4/130*100=6.1 liters/100km, meaning the fuel consumption per 100 kilometers is 6.1 liters. A relatively more accurate method to calculate fuel consumption is to fill up the tank until the pump stops (jump gun), reset the odometer to zero, and then fill up the tank again until the pump stops. The fuel consumption is then calculated by dividing the amount of fuel added by the mileage on the odometer. 2. Method two: The basic calculation method is the fuel consumption per 100 kilometers, which is also the parameter provided by manufacturers. It is calculated by dividing the actual fuel consumption by the actual distance traveled. That is, fuel consumption per 100 kilometers = fuel consumption ÷ distance traveled.

[DiSabrina]

When I first started driving, I was particularly curious about how to calculate fuel consumption per 100 kilometers. The basic method is simple: first fill up the fuel tank until the pump automatically stops, then note down the current mileage; then drive normally, preferably for about 100 kilometers, and after driving, say, 100 kilometers, go to the gas station to fill up again; the amount of fuel added this time is the fuel consumed. Divide this fuel amount by the kilometers driven and multiply by 100 to get the fuel consumption per 100 kilometers. For example, if I drove 100 kilometers after the last fill-up and then added 6 liters of fuel, the fuel consumption would be 6 liters per 100 kilometers. Actually, the car's dashboard often displays this data, but I prefer to calculate it manually, feeling it's more accurate. Fuel consumption is greatly affected by driving habits—frequent hard braking or aggressive acceleration can increase consumption by one or two liters; smooth driving and avoiding traffic congestion can help save money. Also, note the differences in various road conditions: in the city, it might be over 8 liters, while on the highway, around 6 liters is considered economical. Regularly checking tire pressure and using the air conditioning less can also benefit fuel consumption. After developing this habit, I've saved quite a bit on fuel costs.

[SanHailey]

As a seasoned driver with years of experience, I always pay close attention to fuel consumption calculations to save money. The core method is to drive a fixed distance and measure fuel usage: fill up the tank and note the mileage, then after driving (e.g., 110 km), return to the gas station to refuel and check the amount; divide the fuel consumed by the kilometers driven and multiply by 100 to get the result. My example from last week: driving 105 km consumed 7.35 liters, resulting in 7 liters per 100 km. This method is reliable and doesn't rely on the car's onboard computer. Fuel consumption varies by situation—in city traffic with congestion, my consumption rises to 9 liters, while maintaining a steady 80 mph on the highway can drop it to 5.5 liters. To reduce fuel consumption, I've developed habits like gently pressing the accelerator and coasting whenever possible; using the air conditioning less often saves me dozens of dollars each month. Knowledge about fuel efficiency also helps in choosing economical cars—hybrid vehicles consume significantly less, with some even achieving under 4 liters per 100 km.

[HarleyDella]

Calculating fuel consumption per 100 kilometers is actually quite simple with a basic formula: fuel consumption equals the amount of fuel filled divided by the distance traveled, then multiplied by 100. The specific steps are to fill up the tank, reset the trip meter, drive a certain distance (e.g., 50 kilometers), return to the same station to fill up again, note the amount of fuel used, and then convert it to a per 100 kilometers value. I've tested this on highways and city roads for comparison—cruising at a constant speed consumes about 5 liters, while frequent stops and starts can push it up to 10 liters. Many factors influence this, including vehicle weight, wind speed, and engine efficiency; driving at 90-100 km/h on highways is the most fuel-efficient, while uphill driving or using the air conditioning at full blast can add about 1 liter. I often use a mobile app to track data, averaging around 6.5 liters. To optimize, I choose to travel during early mornings or after the evening rush hour to reduce idle time and save on fuel costs, easily saving dozens of dollars each month.