Load Range C is a tire's weight capacity rating

Load Range C tells you the maximum weight a single tire can safely carry. It is one of several load range categories — A, B, C, D, and E — that appear on the tire's sidewall. Load Range C tires can carry between 1,000 and 2,050 pounds per tire, depending on the specific tire model and its inflation pressure.

The load range is not about how much your vehicle weighs overall. It is about how much weight each individual tire must support. A vehicle with four Load Range C tires can distribute its weight across all four, so the total vehicle weight can exceed what one tire carries alone.

Load range matters because using the wrong range can cause tire failure, poor handling, or uneven wear. A tire rated for less weight than your vehicle demands will overheat and break down faster. A tire rated for more weight than necessary costs more and may ride stiffly.

Key Takeaways

  • Load Range C means each tire can safely carry between 1,000 and 2,050 pounds, though the exact maximum depends on the tire model and air pressure.
  • You find the load range printed on the tire's sidewall, usually shown as a letter (A through E) near the tire size information.
  • Your vehicle's door jamb or owner's manual lists the correct load range and tire pressure your vehicle requires — use those, not a guess.
  • Load Range C is common on sedans, small crossovers, and light trucks, while heavier vehicles typically need Load Range D or E.

Where to find the load range on your tire

The load range appears on the tire's sidewall as a single letter. You will see it printed near the tire size designation, which looks something like "P225/65R17." The load range usually comes after the speed rating, which is also a letter.

For example, a tire sidewall might read "225/65R17 102C," where the C is the load range. The number before it (102 in this case) is the load index, which is a numeric way of expressing the same weight capacity. Load Range C corresponds to load indices 97 through 104, so a tire marked 102C and one marked 104C are both Load Range C, but the 104C can carry slightly more weight.

If you cannot find the load range on your tire, check your vehicle's door jamb label or your owner's manual. These documents list the tire size and load range your manufacturer recommends.

How load range differs from load index

Load index and load range describe the same thing — tire weight capacity — but in different ways. Load index is a number (97, 102, 104, and so on), while load range is a letter (C, D, E). Tire manufacturers use both systems, and they mean the same thing.

Load Range C corresponds to load indices 97 through 104. Load Range D corresponds to load indices 105 through 126. Load Range E corresponds to load indices 127 and above. If you see only a number on your tire and no letter, you can look up that load index number to find the equivalent load range.

The reason both systems exist is historical. Older tires used only the letter system; newer tires often show both. Either way, the weight capacity is the same.

Load Range C versus other ranges

Load Range A and B are the lightest-duty ratings, used on some compact cars and older vehicles. Load Range C is the next step up and is common on sedans, small crossovers, and some light trucks. Load Range D is heavier-duty and appears on full-size trucks, SUVs, and vehicles that tow frequently. Load Range E is the heaviest and is used on commercial trucks and vehicles designed to carry very heavy loads.

Choosing the right range depends on your vehicle's weight and how you use it. A sedan that rarely carries passengers or cargo works fine with Load Range C. A truck that regularly tows a trailer or carries heavy equipment may need Load Range D or E. Using a lighter range than your vehicle needs risks tire failure; using a heavier range than necessary costs more money and may make the ride stiffer.

How tire pressure affects load capacity

A tire's maximum weight capacity changes with its air pressure. A Load Range C tire inflated to 32 pounds per square inch (psi) can carry less weight than the same tire inflated to 50 psi. The tire sidewall usually lists the maximum capacity at the tire's maximum recommended pressure.

This is why your vehicle's door jamb label specifies both a tire size and an air pressure. The two work together. If you under-inflate your tires, you reduce their weight capacity and increase the risk of overheating. If you over-inflate them, you may improve capacity slightly, but you sacrifice ride comfort and tire wear.

Always inflate your tires to the pressure listed on your vehicle's door jamb or owner's manual, not to the maximum pressure printed on the tire itself. The door jamb pressure is what the vehicle manufacturer determined is safe and appropriate for your specific vehicle.

What happens if you use the wrong load range

Using a tire with a lower load range than your vehicle needs puts constant stress on the tire. The tire works harder to support the weight, generates more heat, and wears out faster. Over time, the tire can fail suddenly — a blowout while driving — which is dangerous and can cause loss of control.

Using a tire with a higher load range than necessary is not dangerous, but it costs more money and may feel stiffer when you drive. The tire will last longer because it is not working as hard, but you are paying for capacity you do not need.

The safest and most economical choice is to match the load range your vehicle manufacturer specifies. You can find this information on the door jamb label (usually on the driver's side door frame) or in your owner's manual.

Frequently Asked Questions

Can I put Load Range D tires on a vehicle that came with Load Range C?

Yes, you can use a higher load range than the manufacturer specifies. It is not dangerous, though it may cost more and feel slightly stiffer. Never use a lower load range than specified — that risks tire failure.

Does load range affect fuel economy?

Slightly. A heavier-duty tire (higher load range) is typically stiffer and may increase rolling resistance, which can reduce fuel economy by a small amount. The difference is usually not large enough to notice in daily driving.

What if my tire sidewall shows only a number and no letter?

That number is the load index. You can look it up to find the equivalent load range, or check your vehicle's door jamb label for the recommended tire size and load range. Your tire shop can also tell you the load range if you give them the tire size.

Do all four tires need to be the same load range?

Yes. All four tires should match the load range your vehicle manufacturer specifies. Mixing load ranges can cause uneven wear, poor handling, and safety problems. If you need to replace tires, replace all four or at least two on the same axle.