LT245/70R17 — what does it mean?
- LT means "light truck"
- 245 stands for tread width in millimeters
- 70 is an aspect ration between the tread width and the sidewall in percents
- R means that the tire has a radial construction
- 17 is a wheel diameter (or rim) in inches
How to convert LT245 70R17 to inches?
First of all, we need to divide 245 mm (width) by 25.4 (mm to inch conversion), which will give us a width of 9.6″. Then, 70% of the 9.6″ will result in 6.8″ sidewall.
To get the total height or tire diameter, we need to sum the 17″ rim diameter with two of the sidewall heights. It will result in a 30.6″ total tire diameter (or height).
For your convenience, below is a table for LT245/70R17 conversion to inches:
| Inches | Metric | |
|---|---|---|
| Overall diameter (height) | 30.6″ | 777 mm |
| Tread width | 9.6″ | 245 mm |
| Wheel diameter | 17″ | 777 mm |
| Sidewall height | 6.8″ | 172 mm |
| Circumference | 96.1″ | 2440 mm |
| Revolutions | 660 / ml | 410 / km |
Alternatives to a LT245/70R17 tire
If you're looking to upsize your LT245 70R17 tires, try to stay within 3% deviation of an overall diameter for safety reasons.
| Tire | Tire diameter | Width | Wheel Size |
|---|---|---|---|
| 245/75R17 | 31.4″ 0.67% | 9.6″ | 17″ |
| 245/70R17 | 30.6″ 0% | 9.6″ | 17″ |
| 255/65R17 | 30″ -0.49% | 10″ | 17″ |
| 265/65R17 | 30.6″ 0% | 10.4″ | 17″ |
| 275/65R17 | 31″ 0.32% | 10.8″ | 17″ |
| 255/70R17 | 31″ 0.32% | 10″ | 17″ |
| 275/60R17 | 30″ -0.49% | 10.8″ | 17″ |
| 285/60R17 | 30.4″ -0.16% | 11.2″ | 17″ |
| 235/70R17 | 30″ -0.49% | 9.3″ | 17″ |
| 225/75R17 | 30.4″ -0.16% | 8.9″ | 17″ |