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Tire Load And Speed Index Charts

When determining the correct tire for your RV, it is important to consider the load and speed index that is listed on the tire's sidewall. To avoid tire issues, it is important to follow these indexes, such as not loading your RV beyond the maximum weight or driving faster than the maximum speed rating. Please use the charts below to find the maximum weight and speed rating for your tire. If you find that your tire's rating is not ideal for your circumstance, keep in mind that you can always upgrade to a tire with a higher load or speed rating, or both. Upgrading to a tire with a higher rating is imperative if you plan on pushing your RV beyond the current ratings specified by the manufacturer - don't do it!

In addition to the charts below, tire manufacturers provide load and inflation tables that are specific to their tires. We have compiled a list here: click here. If you cannot find your tire listed, please reach out to the tire manufacturer for the load and inflation table that corresponds to your tire.

Tire Load Index Chart

Load IndexLoad(lbs)Load IndexLoad(lbs)Load IndexLoad(lbs)
099504191001764
1102514301011819
2105524411021874
3107534541031929
4110544671041984
5114554811052039
6117564941062094
7120575071072149
8123585201082205
9128595361092271
10132605511102337
11136615671112403
12139625841122469
13143636001132535
14148646171142601
15152656391152679
16157666391162756
17161676771172833
18165686941182910
19171697161192998
20176707391203086
21182717611213197
22187727831223307
23193738051233417
24198748271243527
25204758521253638
26209768821263748
27215779081273858
28220789371283968
29227799631294079
30234809921304189
312408110191314289
322478210471324409
332548310741334541
342608411021344674
352678511351354806
362768611681364938
372828712011375071
382918812351385203
393008912791395357
403099013231405512
413209113561415677
423319213891425842
433429314331436008
443539414771446173
453649515211456393
463759615651466614
473869716091476779
483979816531486844
494089917091497165
1507385

Tire Speed Index Chart

Speed Rating Maximum Speed
B Up to 31 mph
C Up to 37 mph
D Up to 40 mph
E Up to 43 mph
F Up to 50 mph
G Up to 56 mph
J Up to 62 mph
K Up to 68 mph
L Up to 75 mph
M Up to 81 mph
N Up to 87 mph
P Up to 93 mph
Q Up to 100 mph
R Up to 106 mph
S Up to 112 mph
T Up to 118 mph
U Up to 124 mph
H Up to 130 mph
V Up to 149 mph
W Up to 168 mph
Y Up to 186 mph
Z 149 mph and over