ST225/75R14 — what does it mean?
- ST means "special trailer"
- 225 stands for tread width in millimeters
- 75 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 ST225 75R14 to inches?
First of all, we need to divide 225 mm (width) by 25.4 (mm to inch conversion), which will give us a width of 8.9″. Then, 75% of the 8.9″ will result in 6.7″ 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 27.4″ total tire diameter (or height).
For your convenience, below is a table for ST225/75R14 conversion to inches:
| Inches | Metric | |
|---|---|---|
| Overall diameter (height) | 27.4″ | 696 mm |
| Tread width | 8.9″ | 225 mm |
| Wheel diameter | 14″ | 696 mm |
| Sidewall height | 6.7″ | 169 mm |
| Circumference | 86″ | 2185 mm |
| Revolutions | 737 / ml | 458 / km |
Alternatives to a ST225/75R14 tire
If you're looking to upsize your ST225 75R14 tires, try to stay within 3% deviation of an overall diameter for safety reasons.
| Tire | Tire diameter | Width | Wheel Size |
|---|---|---|---|
| 215/75R14 | 26.6″ -0.73% | 8.5″ | 14″ |
| 225/75R14 | 27.4″ 0% | 8.9″ | 14″ |
| 235/70R14 | 27″ -0.36% | 9.3″ | 14″ |
| 245/70R14 | 27.6″ 0.18% | 9.6″ | 14″ |
| 275/60R14 | 27″ -0.36% | 10.8″ | 14″ |
| LT215/75R14 | 26.6″ -0.73% | 8.5″ | 14″ |
| P215/75R14 | 26.6″ -0.73% | 8.5″ | 14″ |
| P225/75R14 | 27.4″ 0% | 8.9″ | 14″ |
| P235/70R14 | 27″ -0.36% | 9.3″ | 14″ |
| P245/70R14 | 27.6″ 0.18% | 9.6″ | 14″ |