205/65R15 tire size
A 205/65R15 tire is 25.5 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
- 25.49″ (648 mm)
- Section width
- 8.07″ (205 mm)
- Sidewall height
- 5.25″ (133 mm)
- Wheel diameter
- 15″
- Circumference
- 80.1″
- Revolutions per mile
- 791
What 205/65R15 means
- 205: the tire is 205 mm (8.1 in) wide from sidewall to sidewall.
- 65: the sidewall is 65% of the width, 133.3 mm (5.25 in) tall.
- R: radial construction, used by almost every modern tire.
- 15: it fits a 15-inch wheel.
Overall diameter = 15 + 2 × 5.25 = 25.49 inches.
Sizes equivalent to 205/65R15
These sizes are within 3% of the overall diameter, the usual limit for swapping without speedometer problems.
| Size | Diameter | Difference | Speedometer at 60 mph |
|---|---|---|---|
| 185/65R16 | 25.5″ | -0.1% | 59.9 mph actual |
| 215/50R17 | 25.5″ | -0.1% | 59.9 mph actual |
| 195/55R17 | 25.4″ | -0.2% | 59.9 mph actual |
| 225/60R15 | 25.6″ | +0.5% | 60.3 mph actual |
| 215/55R16 | 25.3″ | -0.7% | 59.6 mph actual |
| 205/60R16 | 25.7″ | +0.8% | 60.5 mph actual |
| 185/60R17 | 25.7″ | +1.0% | 60.6 mph actual |
| 225/55R16 | 25.7″ | +1.0% | 60.6 mph actual |
| 195/70R15 | 25.7″ | +1.0% | 60.6 mph actual |
| 195/60R16 | 25.2″ | -1.1% | 59.3 mph actual |
See every common size side by side in the tire size chart.
Questions
What is 205/65R15 in inches?
A 205/65R15 tire is about 25.5 inches tall (648 mm) and 8.1 inches wide, on a 15-inch wheel. In flotation sizing that's roughly 25.5x8.1R15.
How tall is a 205/65R15 tire?
The overall diameter is 25.49 inches: the 15-inch wheel plus two 5.25-inch sidewalls. Actual tires vary by a few tenths of an inch between brands and models.
How many revolutions per mile does a 205/65R15 make?
About 791 revolutions per mile, from a circumference of 80.1 inches.
