145/90R16 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:
| 145 | The tire width is 145mm. |
| 90 | The aspect ratio of the tire is 90. 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. 145/90R16 tire can be mounted only to a 16″ rims. |
Best selling 145/90R16 tires
FALKEN T145/90D16 106M FK090 TEMPORARY SPARE OE REP BW
(as of May 30, 2023 18:21 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Set of 4 (FOUR) Transeagle ST Radial All Steel Heavy Duty Premium Trailer Radial Tires-ST235/80R16 235/80/16 235/80-16 129/125M Load Range G LRG 14-Ply BSW Black Side Wall
(as of May 30, 2023 18:21 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Set of 4 (FOUR) Transeagle ST Radial All Steel Heavy Duty Premium Trailer Radial Tires-ST235/85R16 235/85/16 235/85-16 132/127M Load Range G LRG 14-Ply BSW Black Side Wall
(as of May 30, 2023 18:21 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
What is 145/90R16 tire size in inches?
Because the width of 145/90R16 tire is stated in millimeters and sidewall height in percentages, you have to make calculations to see what the true size of 145/90R16 is in inches. Luckily, we have made these calculations for you.In this table you can see size of 145/90R16 in inches, as well as few additional metrics:
| In inches | In millimeters | |
| Section Width | 5.7″ | 145mm |
| Sidewall height | 5.1″ | 131mm |
| Diameter / Height | 26.3″ | 667mm |
| Circumference | 82.5″ | 2097mm |
| Rim Diameter | 16″ | |
| Revolutions | 768 per mile | 477 per kilometer |
Recommended Rim Sizes for 145/90R16 Tires
For 145/90R16 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 145/90R16 to a too wide or too narrow rim. Here are the recommended rim sizes for 145/90R16 tire:
| Diameter | Width Range |
| 16″ | NA |
145/90R16 – Variations
When you look at the tire code on 145/90R16 tires, you may see there are additional numbers and letters after the code 145/90R16. These numbers and letters refer to speed rating and load index of the tire. 145/90R16 has at least following variations available on the markets:
145/90R16 106M