355/50R20 — what does it mean?
- 355 stands for tread width in millimeters
- 50 is an aspect ration between the tread width and the sidewall in percents
- R means that the tire has a radial construction
- 20 is a wheel diameter (or rim) in inches
How to convert 355 50R20 to inches?
First of all, we need to divide 355 mm (width) by 25.4 (mm to inch conversion), which will give us a width of 14″. Then, 50% of the 14″ will result in 7″ sidewall.
To get the total height or tire diameter, we need to sum the 20″ rim diameter with two of the sidewall heights. It will result in a 34″ total tire diameter (or height).
For your convenience, below is a table for 355/50R20 conversion to inches:
| Inches | Metric | |
|---|---|---|
| Overall diameter (height) | 34″ | 864 mm |
| Tread width | 14″ | 355 mm |
| Wheel diameter | 20″ | 864 mm |
| Sidewall height | 7″ | 178 mm |
| Circumference | 106.8″ | 2713 mm |
| Revolutions | 594 / ml | 369 / km |
Alternatives to a 355/50R20 tire
If you're looking to upsize your 355 50R20 tires, try to stay within 3% deviation of an overall diameter for safety reasons.
| Tire | Tire diameter | Width | Wheel Size |
|---|---|---|---|
| 305/55R20 | 33.2″ -0.62% | 12″ | 20″ |
| LT305/55R20 | 33.2″ -0.62% | 12″ | 20″ |
| 275/65R20 | 34″ 0% | 10.8″ | 20″ |
| LT275/65R20 | 34″ 0% | 10.8″ | 20″ |
| 275/60R20 | 33″ -0.76% | 10.8″ | 20″ |
| 285/65R20 | 34.6″ 0.43% | 11.2″ | 20″ |
| 285/60R20 | 33.4″ -0.47% | 11.2″ | 20″ |
| 295/60R20 | 34″ 0% | 11.6″ | 20″ |
| LT285/60R20 | 33.4″ -0.47% | 11.2″ | 20″ |
| 315/60R20 | 34.8″ 0.57% | 12.4″ | 20″ |