Tire Size Comparison: 275 55R20 Vs. 275 60R20

A vehicle’s performance is not only credited to the engine capacity alone. Instead, the overall performance is a summation of the individual performance of other components, including the tires.

Some vehicles have unique tire designs that fit their purposes. For example, small cars are fitted with tires that deliver optimum performance. However, they cannot fit into or perform optimally in larger SUVs and pickup trucks.

275 55R20 Vs. 275 60R20 is a significant debate in the tire industry. This is because they are specially designed for larger SUVs and pickup trucks. However, they have a slight distinction in design. Now, let’s find out the full picture.

275-55R20 Tire

Firstly, it is essential to understand that the expression “275-55R20” contains a four-part measurement that describes the type of tire. It is further broken down as follows:

275 55R20

  • 275 – Tire width in millimeters (10.82 inches)
  • 55 – Tire aspect ratio of height/width
  • R – Radial construction
  • 20 – Rim diameter (in inches)

From the above, you can easily describe a 275 55R20 tire as a vehicle tire with 10.82 inches section width, 20.00 inches rim diameter, 7.50 inches – 9.50 inches rim width range and 31.91inches overall diameter.

This type of tire is designed for large pickup trucks like RAM 1500, Ford F–150, Toyota Tundra, Chevrolet Suburban, Jeep Wrangler, etc. If you own any of the pickup trucks listed above, kindly ensure to get the best 275 55R20 tires whenever you need a replacement.

Read Also: Tire Load Index Chart

275-60R20 Tire

275 60R20

Now that you already understand the tag “275 60R20” from the description of the 275 55R20 tire above, it is pretty straightforward to describe this particular tire and extract the differences between 27560R20 Vs. 27550R20.

Therefore, a 275 60R20 tire is a large SUV or pickup truck tire with 10.8 inches section width, 20.00 inches rim diameter, 103.6 inches circumference, and 33 inches overall diameter.

This tire is further designed to deliver 612 revolutions per mile, and they are mounted on 7.5 inches – 9.5 inches wide wheels. The 275 60R20 tires are also manufactured for use in larger SUVs and pickup trucks like GMC Yukon, Toyota Tundra, Ford F–150, Dodge RAM 1500, etc.

275 55R20 Vs 275 60R20 Differences

27560r20 vs 27555r20 gas mileage

Although the 275 60R20 features “60” on its tag name, it is simply the latest variation of 275 55R20 tires. However, there are some slight differences you can easily spot from their designs as you consider their measurements.

If you’re contemplating, “What’s the difference between 275 55R20 and 275 65R20?” The following analysis on the comparison table below attempts to bring the design features of both 275 55R20 and 275 60R20 tires to bear.

Parameters 275 60R20 275 55R20 Difference
Section width 10.8 inches 10.8 inches 0 inch (0%)
Overall diameter 33 inches 31.9 inches +1.1 inch (+3.4%)
Circumference 103.6 inches 100.2 inches +3.4 inches (+3.4%)
Revs per mile 612 651.84 -39.84 (-6.5%)
Sidewall height 6.5 inches 6 inches +0.5 inch (+9.1%)
Aspect Ratio 60 55 +5 (+3.5%)

Although both tires have a similar section width, there are other features that clearly distinguish them. Let’s briefly analyze three (3) of them.

Overall Diameter

The overall diameter of a vehicle’s tire is the outer diameter. It is measured by taking note of the two sidewalls – the upper sidewall above the wheel and the lower sidewall (touching the ground) below the wheel and the wheel’s diameter aside from the tire itself.

Typically, the 275 60R20 diameter is 33 inches as against the 31.9 inches overall diameter of 275 55R20. So, it is obvious that 275 60R20 is taller than 275 55R20.

Aspect ratio

A vehicle’s tire aspect ratio depicts the height of its cross-section in relation to the width. Although both tires have a similar section width of 10.8 inches; however, 275 60R20 features an aspect ratio of 60%.

Conversely, 275 55R20 comes with an aspect ratio of 55%. That’s clearly a difference of 5%. So, even though both tires have the same width, you need to take cognizance of the aspect ratio before considering one for the replacement of the other.

Wheel Circumference

The circumference indicates the distance around the outer region of the vehicle’s wheel. This also includes the tire’s additional width. The circumference enables a vehicle to maintain balance and brake as fast as possible.

Typically, a larger circumference means more balance and swifter braking. So, since the 275 60R20 has 103.6 inches circumference as against the 100.2 inches of the 275 55R20, it will most likely provide a better balance and braking engagement. This is clearly beyond the 27555R20 ride quality.

Read Also: Tire Speed Rating Chart


How much taller is a 275 60R20 than a 275 55R20?

It is important to compare vehicle tires for several reasons, including durability and performance. However, 275 55R20 Vs. 275 60R20 tires comparison is beyond durability and performance. The overall diameter and other features are key factors not to escape consideration, as highlighted below in this table.

Parameters 275 60R20 275 55R20 Difference
Section width 10.8 inches 10.8 inches 0 inch (0%)
Overall Diameter 33 inches 31.9 inches +1.1 inch (+3.4%)
Circumference 103.6 inches 100.2 inches +3.4 inches (+3.4%)
Revs per mile 612 651.84 -39.84 (-6.5%)
Sidewall height 6.5 inches 6 inches +0.5 inch (+9.1%)
Aspect Ratio 60 55 +5 (+3.5%)

Therefore, from the analysis in the table above, 275 60R20 is about 33.0″ tall, while 275 55R20 is around 31.9″. This simply means 275 60R20 tires are 1.1 inches taller than 275 55R20 tires, which is approximately a +3.4% difference.

What is a 275 60R20 equivalent to?

27560R20 tire size calculator reveals that the tire is designed with a 32.99 inches diameter, 10.83 width inches, 103.65 circumference inches, and 6.5 sidewall height inches.

This measurement is equivalent to 838mm (diameter), 275mm (width), 2632.71mm (circumference), and 165mm (sidewall height).

The measurement of the tire can be expressed in either way. However, 275 60R20 tires are known to be 33.0″ tall. This height is a significant unique factor that distinguishes the tires from 275 55R20 tires.

What size tire is P275 55R20?

A P275 55R20 tire is a passenger tire (P) with 10.83 inches section width, 20.00 inches rim diameter, 7.50 – 9.50 rim width range, and 31.91 overall diameters. The table below depicts a simple breakdown of the tire measurement.

Parameters Measurement
Overall Diameter 31.91 inches
Section Width 10.83 inches
Rim Diameter 20.00 inches
Rim Width Range 7.50 in – 9.50 inches

The P275 55R20 tires are powerful tires with great durability and performance. They are mostly used on larger SUVs and pickup trucks. 

Some of the vehicles in this category include; Ford F–150, Chevrolet Suburban, RAM 1500, Toyota Tundra, GMC Yukon, Jeep Wrangler, and Cadillac Escalade.

Will 275 60R20 fit Stock Silverado?

Of course, 275 600R20 tires will fit a Stock Silverado perfectly. As a matter of fact, a Stock Silverado is designed to accommodate 31.6″ tires like 265 65R18 and 33″ tires like 275 60R20 based on factory standards.

However, a Stock Silverado can also accommodate tires with an extra inch, like 33.5″. In any case, it is essential to ensure that the tires on your Stock Silverado are within the range designed for use on the vehicle based on the manufacturer’s recommendation.

Will 275 60R20 fit Stock Tundra?

Yes, 275 60R20 tires will fit a Stock Tundra when you replace your old tires with this specification. They are generally designed to fit larger SUVs and pickup trucks. Besides a Stock Tundra, the tires also fit in Toyota Tundra, RAM 1500, Silverado 1500, etc.

So, if you drive any of the vehicles outlined above, you can conveniently replace their current tires with 275 60R20 tires. They are designed to fit just perfectly. However, ensure that you fix them properly or contact an expert technician to install them perfectly.

What is the circumference of a 275 60R20 tire?

A 275 60R20 tire has 103.65 inches in circumference, which is equivalent to 2632.71 millimeters. The wheel circumference enables a vehicle’s tire to gain stability on the road and maximize a shortened braking distance.

For instance, vehicle tires with larger wheel circumferences will most likely be more stable and engage the brake faster than those with a smaller circumference. A 275 60R20 has a perfect wheel circumference for large pickup trucks like Toyota Tundra, RAM 1500, Silverado 1500, etc.

Final Words

Distinguishing the tires at a heated debate 275 55R20 Vs. 275 60R20 in this article reveals a vital point. That is, although some vehicle components may be in variants with one another, they may not necessarily be the same.

Therefore, it is important to consider whatever components you’re replacing before choosing another product that appears to be compatible.

If you were asking, “Will 27555R20 fit 27560R20?” You’ve been able to spot a couple of differences between the two tires from the analysis above in this article. This should be sufficient to make an informed decision.

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Osuagwu Solomon

Osuagwu Solomon is a certified mechanic with over a decade of experience in the mechanic garage, and he has over five years of experience in the writing industry. He started writing automotive articles to share his garage experience with car enthusiasts and armature mechanics. If he is not in the garage fixing challenging mechanical problems, he is writing automotive repair guides, buyer’s guides, and car and tools comparisons.

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