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225/40R18 tire load inflation table provides tire pressure psi corresponding to tire's weight load in pounds (lbs).
If your vehicle is carrying extra load, you might want to increase your tire pressure accordingly, but do not overinflate your tires above the maximum tire pressure level indicated on your tire sidewall. Remember that overinflating your tires does not increase their load carrying capacity.
Psi / Load Index
|26 psi||948 lbs||948 lbs|
|27 psi||970 lbs||970 lbs|
|28 psi||992 lbs||992 lbs|
|29 psi||1036 lbs||1036 lbs|
|30 psi||1069 lbs||1069 lbs|
|31 psi||1080 lbs||1080 lbs|
|32 psi||1113 lbs||1113 lbs|
|33 psi||1157 lbs||1157 lbs|
|34 psi||1168 lbs||1168 lbs|
|35 psi||1190 lbs||1190 lbs|
|36 psi||1235 lbs||1235 lbs|
|37 psi||1235 lbs||1257 lbs|
|38 psi||1235 lbs||1268 lbs|
|39 psi||1235 lbs||1312 lbs|
|40 psi||1235 lbs||1334 lbs|
|41 psi||1235 lbs||1356 lbs|
|42 psi||1235 lbs||1389 lbs|
Tire brands and models with 225/40R18 tire size. Click on tire model to see its tire pressure chart.
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