ST175/85R14 — what does it mean?
- ST means "special trailer"
- 175 stands for tread width in millimeters
- 85 is an aspect ration between the tread width and the sidewall in percents
- R means that the tire has a radial construction
- 14 is a wheel diameter (or rim) in inches
How to convert ST175 85R14 to inches?
First of all, we need to divide 175 mm (width) by 25.4 (mm to inch conversion), which will give us a width of 6.9″. Then, 85% of the 6.9″ will result in 5.9″ sidewall.
To get the total height or tire diameter, we need to sum the 14″ rim diameter with two of the sidewall heights. It will result in a 25.8″ total tire diameter (or height).
For your convenience, below is a table for ST175/85R14 conversion to inches:
| Inches | Metric | |
|---|---|---|
| Overall diameter (height) | 25.8″ | 655 mm |
| Tread width | 6.9″ | 175 mm |
| Wheel diameter | 14″ | 655 mm |
| Sidewall height | 5.9″ | 149 mm |
| Circumference | 81″ | 2057 mm |
| Revolutions | 782 / ml | 486 / km |
Alternatives to a ST175/85R14 tire
If you're looking to upsize your ST175 85R14 tires, try to stay within 3% deviation of an overall diameter for safety reasons.
| Tire | Tire diameter | Width | Wheel Size |
|---|---|---|---|
| 205/75R14 | 26.2″ 0.38% | 8.1″ | 14″ |
| 215/70R14 | 25.8″ 0% | 8.5″ | 14″ |
| 225/70R14 | 26.4″ 0.6% | 8.9″ | 14″ |
| 185/80R14 | 25.6″ -0.19% | 7.3″ | 14″ |
| 195/75R14 | 25.4″ -0.38% | 7.7″ | 14″ |
| 195/80R14 | 26.2″ 0.38% | 7.7″ | 14″ |
| 205/70R14 | 25.4″ -0.38% | 8.1″ | 14″ |
| 235/60R14 | 25.2″ -0.58% | 9.3″ | 14″ |
| 245/60R14 | 25.6″ -0.19% | 9.6″ | 14″ |
| 255/55R14 | 25″ -0.78% | 10″ | 14″ |