LT305/55R22 tires: size explained
LT305/55R22 is an LT (light truck) metric tire size. It is about 35.2 in (894 mm) tall, 305 mm wide, and made for a 22-inch wheel.
What LT305/55R22 means
A tire size describes the tire's shape and the wheel it fits. It says nothing about load capacity or speed capability, which are printed separately on the sidewall.
- LTLT (light truck)
- LT means light truck. These tires are built to a light-truck load standard rather than the passenger-tire one. How much a specific tire can carry is set by its load index and load range on the sidewall, not by the size.
- 305Section width
- The tire's width is 305 millimeters (12.0 in), measured from sidewall to sidewall.
- 55Aspect ratio
- The sidewall height is 55% of the width. For 305 mm that is about 6.6 in (168 mm). A smaller number means a shorter sidewall.
- RRadial construction
- R means radial construction, where the internal cords run across the tire from one edge to the other.
- 22Wheel (rim) diameter
- The tire is made for a wheel 22 inches across. Its overall diameter is larger: about 35.2 in (894 mm).
LT305/55R22 dimensions
- Section width
- 12.0 in (305 mm)
- Sidewall height
- 6.6 in (168 mm)
- Wheel (rim) diameter
- 22.0 in (559 mm)
- Overall diameter
- 35.2 in (894 mm)
- Circumference
- 110.6 in (2810 mm)
- Revolutions per mile
- 573
These are nominal design dimensions. Real tires vary by brand, tread depth, wheel width, load and pressure.
Which vehicles use LT305/55R22?
These vehicles list LT305/55R22 among their verified sizes, by trim. Open one to see all of its sizes.
Shop for LT305/55R22 tires
Confirm the size on your tire sidewall or door placard first. These links open each store's own search for LT305/55R22; prices and stock are on their sites.
We may earn a commission if you buy through these links. It doesn't change the price you pay. Read our affiliate disclosure.
Snow chains and tire socks for LT305/55R22
Where winter roads call for extra traction, chains and tire socks are two options that fit over your tires. They are made for specific tire sizes, so these links open Amazon searches for LT305/55R22. Whether they suit your vehicle depends on its clearance and the local rules.
Paid links to Amazon search results. As an Amazon Associate I earn from qualifying purchases. Read our affiliate disclosure.
Before you buy
- Chains and socks are sold by tire size, so match the size on your sidewall exactly.
- Check your owner's manual first: many newer cars and SUVs limit or prohibit chains, or require low-profile (often called SAE Class S) chains because of tight wheel-well clearance.
- Tire socks are a lighter-duty option; check your state's rules, because some areas only accept chains when chain controls are in effect.
- Put them on the drive wheels (or as your manual says) and follow the maker's speed limit.
Similar sizes
These common sizes have an overall diameter within about 3% of LT305/55R22. A common rule of thumb is to keep a replacement size within about 3% of the original overall diameter. Confirm any size change with your vehicle's owner's manual or a tire professional.
| Size | Wheel diameter | Diameter difference | Calculator |
|---|---|---|---|
| 35x12.50R20LT | 20 in (different) | -0.59% | Compare LT305/55R22 with 35x12.50R20LT |
Compare LT305/55R22 with similar sizes
Side-by-side dimensions and speedometer difference for sizes close to LT305/55R22 in overall diameter.
- 35x12.50R20LT vs LT305/55R22-0.59% shorter than LT305/55R22
- 285/75R18 vs LT305/55R22-1.07% shorter than LT305/55R22
- LT285/75R18 vs LT305/55R22-1.07% shorter than LT305/55R22
- LT275/50R24 vs LT305/55R22-1.08% shorter than LT305/55R22
- LT305/55R22 vs LT305/70R18-1.13% shorter than LT305/55R22
Compare LT305/55R22 with another size
See how another size differs in height, width, sidewall and speedometer reading in the tire size calculator.
Compare LT305/55R22 with another sizeQuestions about LT305/55R22
What does LT305/55R22 mean?
LT305/55R22 describes the shape and size of a tire, not how much it can carry or how fast it can go. 305 is the width in millimeters, 55 is the sidewall height as a percentage of that width (about 168 mm), R is the construction type and 22 is the wheel diameter in inches.
How tall is a LT305/55R22 tire?
A LT305/55R22 tire has a nominal overall diameter of about 35.2 in (894 mm), with a sidewall about 6.6 in (168 mm) tall. These are nominal design dimensions. Real tires vary by brand, tread depth, wheel width, load and pressure.
How many revolutions per mile does a LT305/55R22 tire make?
About 573 revolutions per mile, based on a circumference of 110.6 in (2810 mm). A vehicle's speedometer and odometer are calibrated to the tire size it was built with, so a size with a different overall diameter changes what they read. A common rule of thumb is to keep a replacement size within about 3% of the original overall diameter. Confirm any size change with your vehicle's owner's manual or a tire professional.
Which sizes have a similar diameter to LT305/55R22?
Among the common sizes we list, these are within about 3% of the overall diameter of LT305/55R22: 35x12.50R20LT (-0.59%). Diameter is only one measure. Width, wheel diameter, load capacity and clearance matter too. Confirm any size change with your vehicle's owner's manual or a tire professional.
You might also need
- Digital tire pressure gauge (Amazon search, opens in a new tab)
Check your tire pressure against the number on your door placard.
- Portable tire inflator (Amazon search, opens in a new tab)
Top up a low tire at home without a trip to the gas station.
- Tire tread depth gauge (Amazon search, opens in a new tab)
Measure how much tread is left before you decide to replace.
- Lug wrench or torque wrench (Amazon search, opens in a new tab)
Useful for rotations and tire changes; follow the torque spec in your owner's manual.
Paid links to Amazon search results. As an Amazon Associate I earn from qualifying purchases. Read our affiliate disclosure.