205/50R17 tire size
A 205/50R17 tire is 25.1 inches tall and 8.1 inches wide. Here are its full dimensions, what the numbers mean, and the sizes you can swap it for.
- Overall diameter
- 25.07″ (637 mm)
- Section width
- 8.07″ (205 mm)
- Sidewall height
- 4.04″ (103 mm)
- Wheel diameter
- 17″
- Circumference
- 78.8″
- Revolutions per mile
- 804
What 205/50R17 means
- 205: the tire is 205 mm (8.1 in) wide from sidewall to sidewall.
- 50: the sidewall is 50% of the width, 102.5 mm (4.04 in) tall.
- R: radial construction, used by almost every modern tire.
- 17: it fits a 17-inch wheel.
Overall diameter = 17 + 2 × 4.04 = 25.07 inches.
Sizes equivalent to 205/50R17
These sizes are within 3% of the overall diameter, the usual limit for swapping without speedometer problems.
| Size | Diameter | Difference | Speedometer at 60 mph |
|---|---|---|---|
| 225/40R18 | 25.1″ | +0.1% | 60.0 mph actual |
| 185/55R17 | 25.0″ | -0.2% | 59.9 mph actual |
| 195/40R19 | 25.1″ | +0.3% | 60.2 mph actual |
| 225/45R17 | 25.0″ | -0.4% | 59.8 mph actual |
| 225/35R19 | 25.2″ | +0.5% | 60.3 mph actual |
| 215/35R19 | 24.9″ | -0.6% | 59.7 mph actual |
| 195/45R18 | 24.9″ | -0.6% | 59.6 mph actual |
| 205/45R18 | 25.3″ | +0.8% | 60.5 mph actual |
| 185/50R18 | 25.3″ | +0.8% | 60.5 mph actual |
| 185/40R19 | 24.8″ | -1.0% | 59.4 mph actual |
Going a size taller? 235/45R17 is 25.3″ tall, 1.0% more than 205/50R17. Compare any two sizes in the tire size calculator.
See every common size side by side in the tire size chart.
Questions
What is 205/50R17 in inches?
A 205/50R17 tire is about 25.1 inches tall (637 mm) and 8.1 inches wide, on a 17-inch wheel. In flotation sizing that's roughly 25.1x8.1R17.
How tall is a 205/50R17 tire?
The overall diameter is 25.07 inches: the 17-inch wheel plus two 4.04-inch sidewalls. Actual tires vary by a few tenths of an inch between brands and models.
Can I put 215/50R17 instead of 205/50R17?
215/50R17 is 0.39 inches taller (1.6%) 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 205/50R17 make?
About 804 revolutions per mile, from a circumference of 78.8 inches.
