Tire Pressure Calculator

…pressure for the tires. Using the vehicle's weight capacity for each axle and other considerations, the manufacturer can best calculate the psi needed to ensure the tire handles and performs well. All too often, many drivers and mechanics assume the maximum tire pressure listed on the tire's…

…inch difference in the overall diameter of the tires, as shown. This results in a negligible +/- four tenths of a mph speedometer variance. Related Links * Calculating Approximate Tire Dimensions * Contact Patch * North American Load & Pressure Markings * Tire Size Conversion Chart * Tire Size Guide

…inflation pressure that specific tire is rated to hold. However, the tire's maximum pressure is not necessarily the correct pressure for every vehicle upon which the tire can be used (almost all vehicle manufacturers' recommended tire inflation pressures are less than the tires' maximum pressure).…

…today's closest equivalent Euro-metric or P-metric tire sizes for popular 1949 through 1980 tire sizes. Tire Size Conversion Chart Related Links * Calculating Approximate Tire Dimensions * Contact Patch * North American Load & Pressure Markings * P-Metric & Euro-Metric Tire Sizing * Tire Size Guide

…Air Pressure: When & How to Set Checking Tire Inflation Pressure Clearing the Air About Nitrogen Tire Inflation The Influence of Altitude Changes on Tire Pressure Tire Valve Types, Components & Uses We're Checking Who's Checking Spare Tire Pressures We're Checking Who's Checking Tire Pressures…

…and P-metric tires in the same size (i.e. P225/60R16 & 225/60R16) are equivalent in their dimensions with just slight differences in their load capacity calculations and inflation pressure tables. So if Euro-metric and P-metric tires have the same numeric size, the same tire performance category…

…Tire diameter variations can be caused by accidentally using different sized tires, tires with different tread designs, tires made by different manufacturers, different inflation pressures or even tires worn to different tread depths. As an example of different tire diameters resulting from tires…

…Air Pressure: When & How to Set Checking Tire Inflation Pressure Clearing the Air About Nitrogen Tire Inflation The Influence of Altitude Changes on Tire Pressure Tire Valve Types, Components & Uses We're Checking Who's Checking Spare Tire Pressures We're Checking Who's Checking Tire Pressures…

…Air Pressure: When & How to Set Checking Tire Inflation Pressure Clearing the Air About Nitrogen Tire Inflation The Influence of Altitude Changes on Tire Pressure Tire Valve Types, Components & Uses We're Checking Who's Checking Spare Tire Pressures We're Checking Who's Checking Tire Pressures…

…global tire specifications, [and] provides the ability to calculate/estimate basic tire dimensions." Warning: These calculations (and those provided by all online tire dimension calculators) only reflect nominal tire dimensions, which are often subtly or substantially different than the tire's…

…Air Pressure: When & How to Set Checking Tire Inflation Pressure Clearing the Air About Nitrogen Tire Inflation The Influence of Altitude Changes on Tire Pressure Tire Valve Types, Components & Uses We're Checking Who's Checking Spare Tire Pressures We're Checking Who's Checking Tire Pressures…

…inflation pressures correspond with the tire's maximum inflation pressure, it will often appear that too much tire pressure is present. However, this extra 'hot' tire pressure is temporary and should NOT be bled off to return the tire pressure to within the maximum inflation pressure value branded…

…* Tire Specs Explained: Maximum Inflation Pressure * Tire Specs Explained: Measuring Rim Width * Tire Specs Explained: Overall Diameter * Tire Specs Explained: Revolutions Per Mile * Tire Specs Explained: Rim Width Range for Street / Highway Tires * Tire Specs Explained: Tread Width Measuring * Tire…

…replaced when changing tires. Some cars may have valve mounted tire pressure monitoring sensors (TPMS). In that case, disregard the valve stem charge. You may need to have the sensors serviced, in which case you would include the pricing for TPMS service instead. Tires for larger trucks may be…

…Assetto Gara $172* Each of the four options will work with your 225/45-18 Original Equipment tires and accept the O.E. Tire Pressure Monitoring System (TPMS) sensors. If you prefer the look a wider tire, both 235/45-18 and 245/40-18 are compatible sizes. The 235/45-18 won't provide enough…