Is 210kpa equivalent to 2.5 atmospheric pressure?
2 Answers
210KPa=2.1 kgf/cm²=2.1 standard atmospheric pressure. Automotive tire pressure: Generally, the standard range for the original factory tire pressure setting of a car is between 2.3-2.5 bar, which is considered appropriate. Car tire pressure is influenced by various factors, such as season, load, and the cold or hot state of the tires. Different conditions: In summer, car tire pressure should be set at the lower limit of the standard tire pressure. As temperatures and road surface temperatures rise in summer, tire pressure can easily increase during high-speed or long-distance driving. However, tire pressure should not be too low either. Low tire pressure increases the contact area between the tire and the ground, leading to abnormal temperature rise inside the tire during driving, increased fuel consumption, and reduced tire lifespan.
When I was inflating my car tires at the gas station and saw the digital display showing 210 kPa, I initially thought it meant 2.5 atmospheres. Later, after checking the car manual, I realized that 210 kPa actually equals 2.1 bar, as tire pressure is usually measured in bar. Significant deviations in tire pressure can have various impacts: too high pressure leads to faster wear and reduced grip, while too low pressure increases fuel consumption. That time, I noticed my car was driving unstably, which scared me into adjusting the pressure immediately. Now I've developed the habit of checking every two weeks, referring to the label numbers by the car door—the recommended value is generally between 2.2 and 2.4 bar. Don’t be lazy; safety comes first.
