265/50R20 tire size
A 265/50R20 tire is 30.4 inches tall and 10.4 inches wide. Here are its full dimensions, what the numbers mean, and the sizes you can swap it for.
- Overall diameter
- 30.43″ (773 mm)
- Section width
- 10.43″ (265 mm)
- Sidewall height
- 5.22″ (133 mm)
- Wheel diameter
- 20″
- Circumference
- 95.6″
- Revolutions per mile
- 663
What 265/50R20 means
- 265: the tire is 265 mm (10.4 in) wide from sidewall to sidewall.
- 50: the sidewall is 50% of the width, 132.5 mm (5.22 in) tall.
- R: radial construction, used by almost every modern tire.
- 20: it fits a 20-inch wheel.
Overall diameter = 20 + 2 × 5.22 = 30.43 inches.
Sizes equivalent to 265/50R20
These sizes are within 3% of the overall diameter, the usual limit for swapping without speedometer problems.
| Size | Diameter | Difference | Speedometer at 60 mph |
|---|---|---|---|
| 265/45R21 | 30.4″ | -0.1% | 59.9 mph actual |
| 265/40R22 | 30.3″ | -0.3% | 59.8 mph actual |
| 245/55R20 | 30.6″ | +0.6% | 60.3 mph actual |
| 245/50R21 | 30.6″ | +0.7% | 60.4 mph actual |
| 275/40R22 | 30.7″ | +0.8% | 60.5 mph actual |
| 245/45R22 | 30.7″ | +0.8% | 60.5 mph actual |
| 275/45R21 | 30.7″ | +1.0% | 60.6 mph actual |
| 285/45R20 | 30.1″ | -1.1% | 59.3 mph actual |
| 275/50R20 | 30.8″ | +1.3% | 60.8 mph actual |
| 255/50R20 | 30.0″ | -1.3% | 59.2 mph actual |
Going a size taller? 285/50R20 is 31.2″ tall, 2.6% more than 265/50R20. Compare any two sizes in the tire size calculator.
See every common size side by side in the tire size chart.
Questions
What is 265/50R20 in inches?
A 265/50R20 tire is about 30.4 inches tall (773 mm) and 10.4 inches wide, on a 20-inch wheel. In flotation sizing that's roughly 30.4x10.4R20.
How tall is a 265/50R20 tire?
The overall diameter is 30.43 inches: the 20-inch wheel plus two 5.22-inch sidewalls. Actual tires vary by a few tenths of an inch between brands and models.
How many revolutions per mile does a 265/50R20 make?
About 663 revolutions per mile, from a circumference of 95.6 inches.
