What do kg/cm2 and bar mean on a tire pressure gauge?

[MayaMarie]

Tire pressure bar is the imperial unit of pressure "bar", which is one of the units for measuring tire pressure. 1 bar = 1 ATM (standard atmospheric pressure). In addition to bar, other units for tire pressure include kPa (kilopascal), psi, and kg/cm2 (kilogram pressure). The conversion formula between them is: 1 bar = 100 kPa = 14.5 psi = 1.02 kg/cm2. The following factors should be considered when adjusting tire pressure: 1. Seasonal factors: In winter, the tire pressure can be appropriately increased by about 0.2 bar based on the standard tire pressure. In summer, the lower limit of the standard tire pressure should be followed. If the car is parked outdoors in summer, the pressure can generally be about 0.1 bar lower than the standard to avoid tire blowouts due to high temperatures. 2. Road conditions: On roads with significant bumps, the tire pressure can be appropriately reduced by 0.1-0.2 bar based on the standard tire pressure. For roads with minor bumps, this can be ignored. For long-distance high-speed driving, the tire pressure should not be too low and can be appropriately increased by about 0.2 bar based on the lower limit of the standard tire pressure.