215/45R17 tire size
A 215/45R17 tire is 24.6 inches tall and 8.5 inches wide. Here are its full dimensions, what the numbers mean, and the sizes you can swap it for.
- Overall diameter
- 24.62″ (625 mm)
- Section width
- 8.46″ (215 mm)
- Sidewall height
- 3.81″ (97 mm)
- Wheel diameter
- 17″
- Circumference
- 77.3″
- Revolutions per mile
- 819
What 215/45R17 means
- 215: the tire is 215 mm (8.5 in) wide from sidewall to sidewall.
- 45: the sidewall is 45% of the width, 96.8 mm (3.81 in) tall.
- R: radial construction, used by almost every modern tire.
- 17: it fits a 17-inch wheel.
Overall diameter = 17 + 2 × 3.81 = 24.62 inches.
Sizes equivalent to 215/45R17
These sizes are within 3% of the overall diameter, the usual limit for swapping without speedometer problems.
| Size | Diameter | Difference | Speedometer at 60 mph |
|---|---|---|---|
| 205/35R19 | 24.6″ | +0.1% | 60.1 mph actual |
| 195/50R17 | 24.7″ | +0.2% | 60.1 mph actual |
| 235/35R18 | 24.5″ | -0.6% | 59.7 mph actual |
| 215/40R18 | 24.8″ | +0.6% | 60.4 mph actual |
| 205/40R18 | 24.5″ | -0.7% | 59.6 mph actual |
| 235/40R17 | 24.4″ | -0.9% | 59.5 mph actual |
| 195/35R19 | 24.4″ | -1.0% | 59.4 mph actual |
| 195/45R18 | 24.9″ | +1.2% | 60.7 mph actual |
| 215/35R19 | 24.9″ | +1.2% | 60.7 mph actual |
| 225/45R17 | 25.0″ | +1.4% | 60.9 mph actual |
Going a size taller? 225/45R17 is 25.0″ tall, 1.4% more than 215/45R17. Compare any two sizes in the tire size calculator.
See every common size side by side in the tire size chart.
Questions
What is 215/45R17 in inches?
A 215/45R17 tire is about 24.6 inches tall (625 mm) and 8.5 inches wide, on a 17-inch wheel. In flotation sizing that's roughly 24.6x8.5R17.
How tall is a 215/45R17 tire?
The overall diameter is 24.62 inches: the 17-inch wheel plus two 3.81-inch sidewalls. Actual tires vary by a few tenths of an inch between brands and models.
Can I put 225/45R17 instead of 215/45R17?
225/45R17 is 0.35 inches taller (1.4%) 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 215/45R17 make?
About 819 revolutions per mile, from a circumference of 77.3 inches.
