How to Calculate Fuel Consumption Formula and Cost per Kilometer?

2 Answers
VonEmmanuel
07/30/25 1:16am
Fuel consumed ÷ Distance traveled × 100 = Fuel consumption per 100 kilometers; The data on fuel consumed is relatively difficult to obtain. Generally, a full fuel tank is used as the initial data. After driving a certain distance, the tank is refilled to full, and the refueling data provided by the gas station is taken as the standard. Below are the specific steps for calculating fuel consumption: 1. Method: First, fill the vehicle's fuel tank to full, then reset the odometer to zero, and proceed to drive. After driving 200 kilometers, enter a gas station to refuel. When the tank is full, the fuel dispenser shows 15 liters. According to the formula (15 ÷ 200 × 100 = 7.5), the vehicle's fuel consumption per 100 kilometers is 7.5L. 2. Notes: Individual driving habits, road conditions, vehicle load, tire pressure, and weather conditions can all affect fuel consumption, making it vary. A more scientific method for calculating fuel consumption involves calculating the average. Drive the vehicle for 10,000 kilometers, record the data after multiple refueling sessions during this period, then take the average of the highest and lowest fuel consumption values. This method yields relatively more scientific data.
Was this review help?
18
3
Share
DelRyan
08/15/25 6:52am
I'm someone who commutes by car frequently. The formula to calculate fuel consumption per kilometer is actually quite simple: the amount of fuel refilled (in liters) divided by the distance traveled (in kilometers). For example, last time I filled up my tank before driving and noted the odometer was at 1000 kilometers. After driving 500 kilometers, I returned to the gas station and refilled with 40 liters of fuel. So, the fuel consumption per kilometer is 40 liters ÷ 500 kilometers = 0.08 liters/km. Over time, I've noticed that driving habits can significantly affect the result. For instance, frequent hard acceleration and braking can increase fuel consumption a lot, whereas maintaining a steady speed around 70 km/h is much more fuel-efficient. Vehicle weight and road conditions are also crucial; carrying a full load or driving uphill will definitely raise the numbers. I recommend resetting the odometer right after refueling and recording it directly the next time you fill up—it's accurate and easy to remember. Developing this habit not only helps save money but also prevents potential car issues, like low tire pressure or engine carbon buildup.
Was this review help?
16
1
Share
Expand All
More Forum Discussions

Can Waste Engine Oil Be Ignited?

Waste engine oil can be ignited. Hazards of Waste Engine Oil: Waste engine oil contains carcinogenic, mutagenic, and teratogenic substances, as well as waste acids, heavy metals, and other harmful materials that pose significant risks to human health. Organic compounds such as aromatic hydrocarbons are particularly toxic, capable of lodging in the lungs and entering the bloodstream to affect the entire body. These substances can interfere with the hematopoietic system, nervous system, etc., leading to blood disorders. Heavy metals like lead and cadmium are difficult to eliminate from the body and severely impact the nervous system. Characteristics of Waste Engine Oil: Waste engine oil refers to used oil that has been replaced from various machinery, vehicles, ships, and equipment due to oxidation, thermal decomposition, and contamination by impurities, rendering its physical and chemical properties unsuitable for continued use. During its service life, lubricating oil accumulates large amounts of sludge and oxides from external contamination, diminishing or completely losing its functions such as friction control, wear reduction, cooling, sealing, and vibration damping. This results in the formation of waste oil—a semi-solid or liquid product composed of wholly or partially used mineral or synthetic hydrocarbons (synthetic oils), residues from storage tanks, mixtures of oil and water, and emulsions.
5
0
Share

Will the car display a warning when the windshield washer fluid runs out?

When the windshield washer fluid runs out, the car will display a warning. After the washer fluid is insufficient, a warning light will illuminate on the dashboard to alert the driver. This warning light is shaped like a fan, with water spraying out from the bottom of the fan. This indicator is used to show the level of the vehicle's windshield cleaning fluid. Normally, it remains off. When the indicator lights up, it means the vehicle's windshield cleaning fluid is insufficient and needs to be refilled. After adding the cleaning fluid, the indicator will turn off. Windshield washer fluid is something many car owners use regularly, whether for cleaning the windshield or headlights. If the washer fluid is low, it should be refilled as soon as possible.
4
5
Share

Which Gear Should You Use When Stopping at a Traffic Light?

When stopping at a traffic light, it is generally recommended to shift into N (Neutral) gear. P Gear Introduction: P (Park) gear is the gear used when the vehicle is parked for an extended period. R Gear Introduction: R (Reverse) gear is the gear engaged when the vehicle needs to move backward. N Gear Introduction: N (Neutral) gear is the gear used when the vehicle is parked for a short time without turning off the engine. D Gear Introduction: D (Drive) gear, also known as the forward or driving gear, automatically shifts gears based on throttle position and speed data when the gear lever is in D. M Gear Introduction: M (Manual) gear refers to the manual mode of an automatic transmission or the simulated manual mode of a CVT transmission. When the gear lever is shifted into M, gear changes are performed manually by the driver.
11
3
Share

Is Haima Automobile a Domestic or Joint Venture Brand?

Haima Automobile is now a domestic brand, but it was previously a joint venture with Japan's Mazda, with technology and production lines provided by the Japanese side. Haima Automobile has a relatively limited product range, with the Family (Familiy) being its main model. Haima Automobile owns brands such as Fushida, Cupid, Haima M3, S5, and M6. The Haima M3 is an A-segment sedan newly developed by Haima Automobile, completed by Haima's Shanghai R&D Center, and is a stylish and elegant compact family car. In terms of body dimensions, the Haima M3 measures 4545mm in length, 1737mm in width, and 1495mm in height, with a wheelbase of 2600mm.
3
3
Share

What is the replacement interval for manual transmission fluid?

Manual transmission fluid should be replaced every 2 years or 60,000 kilometers. Manual transmission vehicles may experience discomfort when driven over 20,000 kilometers. The functions of manual transmission fluid include lubricating, cleaning, cooling, and protecting the inner walls of the transmission. After a certain mileage, prolonged operation causes the fluid to lose its primary functions, becoming similar to water in consistency. Failure to replace it regularly will severely impact the transmission's service life and driving experience. To reduce wear on friction components and prevent increased component wear, manual transmission fluid also requires timely replacement.
8
3
Share

How Often Should a Motorcycle Battery Be Charged?

Motorcycle batteries should be charged every 2 to 3 months. Battery Charging Method: Be sure not to reverse the positive and negative terminals, and do not block the vent tube next to the battery. Motorcycle batteries generally have a small capacity, typically around 5AH-9AH, and are 12V batteries. Therefore, the charger should be set to around 12V1A. For a 7AH battery, it takes approximately 7 hours to fully charge. Battery Charging Precautions: Do not start the motorcycle or turn on the headlights while charging, as this can damage the charger. Before charging, ensure the vent holes on the battery's filler caps are clear and unobstructed. This allows proper ventilation even when the battery produces bubbles during charging. Additionally, the wires connected to the battery, especially the positive wire (the red one), must not come into contact with the vehicle to avoid short circuits.
18
4
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.