How Many Kilograms Does 1 Liter of Gasoline Equal?
3 Answers
In fact, China's gasoline prices were once calculated in units of "kilograms" and "liters." At that time, China only had 66-grade and 70-grade gasoline. In terms of price, it was about 0.1 yuan per kilogram, and gasoline coupons were used at the time. After China joined the WTO, to align with international standards, the measurement units were gradually unified, designating "liters" as the legal unit of capacity, while "gong liters" and "li liters" became commonly used non-legal units (1 liter equals 1 gong liter). Converting "liters" to "jin" or "kilograms" is relatively more complex. According to China's current gasoline standards, gasoline can be classified into 92, 95, and 98 grades. Generally, the average density of 92-grade gasoline is 0.72 g/ml, 95-grade is 0.725 g/ml, and 98-grade is 0.737 g/ml. Based on the formula "mass equals density multiplied by volume," the mass per liter of 92-grade gasoline is 0.72 kg, 95-grade is 0.725 kg, and 98-grade is 0.737 kg. Taking 92-grade gasoline as an example, 1 liter of gasoline roughly equals 1.44 jin. At the current price of 7.05 yuan per liter for 92-grade gasoline in Guangdong, the price per jin of gasoline is approximately 4.9 yuan, which is a far cry from the "0.1 yuan per kilogram" price back then. Different climates in different seasons can cause slight variations in the density of substances. At a temperature of 25°C, the average densities of the major gasoline grades are as follows: assuming 89-grade gasoline has an average density of 0.72 g/ml, 92-grade gasoline has a density of 0.725 g/ml, and 95-grade gasoline has a density of 0.737 g/ml. Since 1 liter equals 1,000 ml, multiplying each density by 1,000 and converting to kilograms gives approximately 0.72 kg for 1 liter of 89-grade gasoline, 0.725 kg for 92-grade, and 0.737 kg for 95-grade. In summary: the conversion between density, liters, and kilograms is density multiplied by 1,000 equals kilograms, and kilograms divided by density equals the number of liters.
As a car owner who frequently refuels my own vehicle, I always remember that 1 liter of gasoline is approximately equal to 0.75 kilograms. This is mainly because the density of gasoline ranges between 0.73 to 0.78 grams per cubic centimeter, and taking a median value simplifies the calculation. Knowing this is quite practical. For example, my car's fuel tank has a capacity of 50 liters, so a full tank is roughly equivalent to 37.5 kilograms, which has a slight impact on the total load when the car is on the road. Especially during road trips or long-distance travel, I need to check that the items in the trunk aren't too heavy, as it could affect fuel consumption and safety. Additionally, the weight of gasoline can vary with temperature—it's lighter in the summer when it's hot due to lower density, and heavier in the winter when it's cold. So, after each refueling, I do a quick calculation of the overall vehicle weight to ensure a smoother drive. In the end, this isn't anything complicated, but understanding it can make daily driving more worry-free.
I was quite interested in this topic back in school. From a physics perspective, the density of gasoline determines how volume converts to weight. Generally speaking, one liter of gasoline weighs approximately 0.75 kilograms, as its average density is 0.75 grams per milliliter. This is actually related to water's density - water weighs 1 kilogram per liter, but gasoline is lighter because it contains hydrocarbon compounds. Out of curiosity, I once researched why this is the case. The main reason is that gasoline has lower density during refining, unlike diesel which is much heavier. This knowledge comes in handy in daily life - for example, helping parents calculate their family car's fuel consumption. If a car consumes 8 liters per 100 kilometers, that's equivalent to shedding 6 kilograms of weight per kilometer - how fascinating! However, it's worth noting that different gasoline grades have slightly varying densities. For instance, 92-octane might be marginally lighter than 95-octane. Overall, remembering this value and factoring in weather conditions should suffice.
