A digital gauge will display the reading on the screen.Attach the pressure gauge by pressing it firmly into the valve stem - you will hear a hissing sound as the air gets released.Unscrew the valve cap from the tyre’s valve stem.To use the pressure gauge, follow these simple steps: Once you’ve identified the unit of measurement, you’ll need the relevant pressure gauge that uses the same measurement. a reading of 200 KPA, would mean that the air inside the tyre is exerting a force of 200 kilopascals per square centimetre.Īll cars have specific measurement guidelines - whether this be PSI, Bar or KPA. The more air you put into the balloon, the greater the pressure you feel when you touch it. ![]() It's similar to how you can feel the pressure when you squeeze a tightly inflated balloon. Think of KPA as a way to understand how much "push" the air inside the tyre is applying. KPA is another way to measure tyre pressure and stands for Kilopascals, and tells us the amount of air pressure inside the tyre. A reading of 2 Bar would mean that the air inside the tyre is exerting a force equivalent to 2 times the atmospheric pressure. When measuring tyre pressure, the Bar method measures the amount of force applied by the air inside the tyre. If you live in a country that uses the imperial system, you likely won’t need to convert to Bar or KPA, but just in case you need to know, read on.īar is another way to measure tyre pressure and uses atmospheric pressure - the pressure exerted by the air around us. A reading of 30 PSI, would mean there is a force of 30 pounds acting on every square inch of the tyre's internal area. The higher the PSI reading, the more pressure inside the tyre. It measures how much force the air inside the tyre is exerting and displays the reading in PSI units. PSI stands for Pounds per Square Inch and is a commonly used imperial measurement. PSI is the most common tyre pressure measurement and is the one motorists are most familiar with, especially here in the UK. Types of tyre pressure measurements: PSI, Bar & KPA To stay safe on the roads it is important to look after your tyres and ensure they always have the right pressure. ![]() Poorly maintained tyres can lead to serious issues further down the road including flat tyres, breakdowns and worst-case a collision. Understanding your tyre pressure will allow you to know when your tyres need air and exactly how much they need. Keeping on top of your tyres is a crucial part of vehicle maintenance.
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