225/75R16 refers to the size of the tire. It’s a standard which is used by car and tire manufacturers. By having the standard, tire manufacturers are able to manufacture same size tires independently and users can buy same size tires from different manufacturers.
Here’s an explanation of what these metrics mean in practice:
225 | The tire width is 225mm. |
75 | The aspect ratio of the tire is 75. Aspect ratio refers to the height of tire sidewall in relation to tire width in percentages. |
R | The letter in the middle refers to tire construction. Practically all tires sold for cars are radials. Sometimes you also see tires with RF or ZR. RF indicates the tire is run flat, whereas ZR means the tire has speed rating higher than V. These tires are also radials, as the R indicates. |
16 | Rim diameter for the tire. 225/75R16 tire can be mounted only to a 16″ rims. |
What is 225/75R16 tire size in inches?
Because the width of 225/75R16 tire is stated in millimeters and sidewall height in percentages, you have to make calculations to see what the true size of 225/75R16 is in inches. Luckily, we have made these calculations for you.In this table you can see size of 225/75R16 in inches, as well as few additional metrics:
| In inches | In millimeters |
Section Width | 8.9″ | 225mm |
Sidewall height | 6.6″ | 169mm |
Diameter / Height | 29.3″ | 744mm |
Circumference | 92.0″ | 2337mm |
Rim Diameter | 16″ | |
Revolutions | 689 per mile | 428 per kilometer |
Recommended Rim Sizes for 225/75R16 Tires
For 225/75R16 tires you need to have correct size rims to install the tires to. There are different width rims available in the market, and you can run into problems by installing 225/75R16 to a too wide or too narrow rim. Here are the recommended rim sizes for 225/75R16 tire:
Diameter | Width Range |
16″ | 6-7.5″ |
225/75R16 – Variations
When you look at the tire code on 225/75R16 tires, you may see there are additional numbers and letters after the code 225/75R16. These numbers and letters refer to speed rating and load index of the tire. 225/75R16 has at least following variations available on the markets:
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X FIT HT
225/75 R16 104T
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X FIT AT
225/75 R16 115T
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X FIT AT
225/75 R16 115S
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Road
225/75 R16 108S
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U
225/75 R16 108H
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U
225/75 R16 108H
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T
225/75 R16 118R
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T
225/75 R16 116R
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T
225/75 R16 75R
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D
225/75 R16 108S
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D
225/75 R16 108S
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SL309
225/75 R16 115Q
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Grabber HTS 60
225/75 R16 104S
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Grabber HTS
225/75 R16 115S
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Grabber HTS
225/75 R16 112S
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Grabber HTS
225/75 R16 104S
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