245/65R17 tire size
A 245/65R17 tire is 29.5 inches tall and 9.6 inches wide. Here are its full dimensions, what the numbers mean, and the sizes you can swap it for.
- Overall diameter
- 29.54″ (750 mm)
- Section width
- 9.65″ (245 mm)
- Sidewall height
- 6.27″ (159 mm)
- Wheel diameter
- 17″
- Circumference
- 92.8″
- Revolutions per mile
- 683
What 245/65R17 means
- 245: the tire is 245 mm (9.6 in) wide from sidewall to sidewall.
- 65: the sidewall is 65% of the width, 159.3 mm (6.27 in) tall.
- R: radial construction, used by almost every modern tire.
- 17: it fits a 17-inch wheel.
Overall diameter = 17 + 2 × 6.27 = 29.54 inches.
Sizes equivalent to 245/65R17
These sizes are within 3% of the overall diameter, the usual limit for swapping without speedometer problems.
| Size | Diameter | Difference | Speedometer at 60 mph |
|---|---|---|---|
| 265/60R17 | 29.5″ | -0.1% | 60.0 mph actual |
| 225/65R18 | 29.5″ | -0.1% | 60.0 mph actual |
| 245/60R18 | 29.6″ | +0.1% | 60.1 mph actual |
| 265/55R18 | 29.5″ | -0.2% | 59.9 mph actual |
| 245/55R19 | 29.6″ | +0.2% | 60.1 mph actual |
| 225/60R19 | 29.6″ | +0.3% | 60.2 mph actual |
| 265/50R19 | 29.4″ | -0.4% | 59.8 mph actual |
| 225/70R17 | 29.4″ | -0.5% | 59.7 mph actual |
| 235/55R19 | 29.2″ | -1.2% | 59.3 mph actual |
| 235/70R17 | 30.0″ | +1.4% | 60.8 mph actual |
Going a size taller? 255/65R17 is 30.1″ tall, 1.7% more than 245/65R17. Compare any two sizes in the tire size calculator.
See every common size side by side in the tire size chart.
Questions
What is 245/65R17 in inches?
A 245/65R17 tire is about 29.5 inches tall (750 mm) and 9.6 inches wide, on a 17-inch wheel. In flotation sizing that's roughly 29.5x9.6R17.
How tall is a 245/65R17 tire?
The overall diameter is 29.54 inches: the 17-inch wheel plus two 6.27-inch sidewalls. Actual tires vary by a few tenths of an inch between brands and models.
Can I put 255/65R17 instead of 245/65R17?
255/65R17 is 0.51 inches taller (1.7%) and 10 mm wider. That's within the usual 3% limit, but check that your wheel width is approved for it and that it clears the suspension.
How many revolutions per mile does a 245/65R17 make?
About 683 revolutions per mile, from a circumference of 92.8 inches.
