Tire Pressure Calculator – Check, Adjust & Maintain Correct Levels

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Frequently asked questions about tire pressure

What is the correct tire pressure for my car?

The correct pressure depends on your vehicle model, tire size and load. You can find the recommended PSI in your owner’s manual, on a sticker inside the driver’s door or on the fuel cap. Remember to adjust the pressure when carrying heavy luggage and increase it slightly during cold weather.

How do I check my tire pressure properly?

Use a reliable gauge or visit a service station. Always check the pressure when the tires are cold and every two to three weeks or before long trips. Attach the gauge to the valve, read the pressure and compare it with the recommended value; repeat for all four tires.

What happens if my tire pressure is too low or too high?

Low pressure increases rolling resistance, causes overheating, raises fuel consumption and lengthens stopping distances. High pressure reduces the contact patch, decreases traction and makes the ride harsh. Keeping the pressure within the recommended range enhances safety, fuel efficiency and tire life.

What is a TPMS and why is it important?

A Tire Pressure Monitoring System (TPMS) watches the pressure while you drive and warns you if it drops below a safe level. Vehicles built after 2014 often include TPMS as standard, helping you react quickly to punctures or leaks.

How do I adjust tire pressure and what equipment should I carry?

Unscrew the valve cap, attach the hose and use the controls to add or release air. Adjust according to load and driving conditions. For extra safety, carry a car-jack, tire repair kit to handle punctures, and a first aid kit in case of accidents – essential items for any holiday trip.

Also use our free tire size and speedometer deviation calculator.