What’s the right load index for your vehicle?

Load index for tires

When you’re shopping for new tires, it’s important to make sure you choose the right size and the right load index.

In this guide, we’ll help you learn why using tires with the right load index is critical and how to make sure you’re following your manufacturer’s recommended load index.

What is load index?

Tire load index tells you how much weight a tire can carry at its maximum air pressure. The engineers who designed your vehicle determined exactly how much weight your vehicle could safely support based on your tire size and tire pressure: the load index.

A load index of 91, for example, translates to a safe carrying capacity of 1,356 pounds or 615 kilograms.

Take a look at our load index table. 

Load Index

Pounds

Kilograms

Load Index

Pounds

Kilograms

60

551

250

93

1,433

650

61

567

257

94

1,477

670

62

584

265

95

1,521

690

63

600

272

96

1,565

710

64

617

280

97

1,609

730

65

640

290

98

1,653

750

66

661

300

99

1,709

775

67

677

307

100

1,764

800

68

695

315

101

1,819

825

69

717

325

102

1,874

850

70

738

335

103

1,929

875

71

761

345

104

1,984

900

72

783

355

105

2,039

925

73

805

365

106

2,094

950

74

827

375

107

2,149

975

75

853

387

108

2,205

1,000

76

882

400

109

2,271

1,030

77

908

412

110

2,337

1,060

78

937

425

111

2,403

1,090

79

963

437

112

2,470

1,120

80

992

450

113

2,536

1,150

81

1,019

462

114

2,601

1,180

82

1,047

475

115

2,679

1,215

83

1,074

487

116

2,756

1,250

84

1,102

500

117

2,833

1,285

85

1,135

515

118

2,910

1,320

86

1,168

530

119

2,999

1,360

87

1,201

560

120

3,087

1,400

88

1,235

560

121

3,197

1,450

89

1,279

580

122

3,306

1,500

90

1,323

600

123

3,418

1,550

91

1,356

615

124

3,528

1,600

92

1,389

630

125

3,638

1,650

Where can you find your tire load index?

You should be able to find your manufacturer’s OE specs in your manual or on your door placard, where you’ll see the recommended tire size, load rating and tire pressure.

Can you use a tire with a lower load index than the original equipment specifications?

What happens if you find a tire you’d like to buy, but it has a smaller load index than your original equipment (OE) specifications? Can you use a tire with a lower load index? No.

A tire with a lower load index than your OE specifications can’t properly support the weight of your vehicle and its load (passengers and ski equipment, for example)—or the forces applied to the tire in emergency manoeuvres.

When you overload tire, you put your tire at risk of:

Stressing the casing and construction, especially when combined with driving on hot summer roads

Tire failure and blowouts

The Rubber Association of Canada’s guidelines state new tires should never be downgraded in load rating from the tires placed on a vehicle by the car manufacturer.

If you’re thinking about up-sizing, you can switch to a tire with a higher load index, because that means your tire can safely carry more weight, but you can never go down.

Are you in the market for hauling or trailer tires? Learn more in our post Ply Rating, Load Index & Load Range:Choosing the Best Tires for Hauling.

Remember when you shop for tires online at KalTire.com, you can search for tires by vehicle so we can determine tire size and load index for you! Plus, when you shop online with us, you’re only charged for your tires when the right set is installed. 

Was this article helpful?

Click on thumbs up or down to vote.

Shop Tires

Find the perfect tires for all your travels.

Shop Now