Tire Load Index Chart & Speed Ratings

The number before the letter (91H) is load. The letter is speed. Both have to meet the door-jamb spec.

91H is a common touring tire: 615 kg / 1,356 lb per tire, 210 km/h (130 mph). Four of them: 5,424 lb of tire capacity — still limited by GVWR.

Load index table (ETRTO)

LIkglb
70335739
71345761
72355783
73365805
74375827
75387853
76400882
77412908
78425937
79437963
80450992
814621,019
824751,047
834871,074
845001,102
855151,135
865301,168
875451,202
885601,235
895801,279
906001,323
916151,356
926301,389
936501,433
946701,477
956901,521
967101,565
977301,609
987501,653
997751,709
1008001,764
1018251,819
1028501,874
1038751,929
1049001,984
1059252,039
1069502,094
1079752,150
10810002,205
10910302,271
11010602,337
11110902,403
11211202,469
11311502,535
11411802,601
11512152,679
11612502,756
11712852,833
11813202,910
11913602,998
12014003,086
12114503,197
12215003,307
12315503,417
12416003,527
12516503,638
12617003,748
12717503,858
12818003,968
12918504,079
13019004,189
13119504,299
13220004,409
13320604,542
13421204,674
13521804,806
13622404,938
13723005,071
13823605,203
13924305,357
14025005,512
14125755,677
14226505,842
14327256,008
14428006,173
14529006,393
14630006,614
14730756,779
14831506,945
14932507,165
15033507,385

Indexes 0–69 exist and still calculate; the visible table starts at 70 (passenger).

Speed symbols

  • Q · 160 km/h / 99 mph — 160 km/h (99 mph). Common on winter tires.
  • R · 170 km/h / 106 mph — 170 km/h (106 mph).
  • S · 180 km/h / 112 mph — 180 km/h (112 mph). Common family-car rating.
  • T · 190 km/h / 118 mph — 190 km/h (118 mph).
  • H · 210 km/h / 130 mph — 210 km/h (130 mph). Very common touring rating.
  • V · 240 km/h / 149 mph — 240 km/h (149 mph).
  • W · 270 km/h / 168 mph — 270 km/h (168 mph).
  • Y · 300 km/h / 186 mph — 300 km/h (186 mph).
  • (Y) — Over 300 km/h (186 mph). The exact limit is on the tire maker's spec sheet.
  • ZR — Legacy mark for over 240 km/h. Modern tires add W, Y or (Y) after the load index.

What it does

Full ETRTO load-index table (0–150) in kg and lb, with axle and four-tire totals, plus the standard speed-symbol table.

How to use it

Enter the load index from the sidewall. Optionally enter a target weight (per tire or per axle) to see if the index covers it.

How to read the result

Never go below the load index on the vehicle placard. Extra capacity is fine; less is a safety failure. Dual ratings (121/118) mean single vs twinned — we look up the number you type, we do not invent the dual. Speed rating is the max speed at that load, not a performance promise.

What this does not calculate

Capacities assume the tire is at the inflation in the maker’s load table — usually the max cold psi on the sidewall, which is not the vehicle’s recommended psi. LT tires in dual fitment use the second index.

Does not replace the door-jamb placard or a weigh-scale ticket.

Questions

Can I use a higher load index?
Yes, if the size, speed rating and rim are correct. A higher index is extra capacity, not a problem.
What if XL or Extra Load is on the tire?
XL (reinforced) passenger tires carry more load at higher inflation. The load index already reflects that. Do not mix XL and standard on the same axle.
Is H faster than V?
No. H is 210 km/h, V is 240 km/h. The alphabet is not in order through the high-speed symbols.

Related tools

Estimate — not a fitment approval.

Tire Load Index Chart & Speed Ratings