25.6" tall, 9.6" wide, 4.8" sidewall
A 245/50R16 tire is 25.6 inches (651 mm) tall and 9.6 inches wide. The sidewall is 50% of the width, 4.8 inches, on a 16-inch wheel, and the tire turns about 786 times per mile.
In flotation terms that is about 25.6x9.6R16. People often call it a 26-inch tire.
The size most often compared with it is 225/50R16, which is 0.8" shorter (−3.1%). At an indicated 60 mph you would be doing 58.2 mph on it, more than the 3% change many shops use as a limit.
| Current | New | Difference |
|---|
| Shows | Actual speed |
|---|
Same 16" wheel, within 20 mm of width and 10 points of aspect ratio.
| Size | Diameter | Width | Sidewall | vs 245/50R16 | |
|---|---|---|---|---|---|
| 225/50R16 | 24.9" | 8.9" | 4.4" | −3.1% |
Sizes within 2% of 25.6" on 17" or 15" or 18" or 14" wheels.
| Size | Diameter | Width | Sidewall | vs 245/50R16 | |
|---|---|---|---|---|---|
| 275/40R17 | 25.7" | 10.8" | 4.3" | +0.1% | |
| 225/60R15 | 25.6" | 8.9" | 5.3" | −0.1% | |
| 245/55R15 | 25.6" | 9.6" | 5.3" | −0.1% | |
| 315/35R17 | 25.7" | 12.4" | 4.3" | +0.1% | |
| 275/35R18 | 25.6" | 10.8" | 3.8" | −0.3% | |
| 195/75R14 | 25.5" | 7.7" | 5.8" | −0.5% |
Actual speed when the speedometer is calibrated for 245/50R16.
| Speedometer shows | on 225/50R16 |
|---|---|
| 30 mph | 29.1 mph |
| 45 mph | 43.6 mph |
| 60 mph | 58.2 mph |
| 70 mph | 67.9 mph |
25.6 inches (651 mm). The sidewall is 4.8 inches.
9.6 inches (245 mm) section width, measured sidewall to sidewall.
About 25.6x9.6R16.
225/50R16 is −3.1% in diameter, more than the common 3% guideline, so expect a speedometer error and check clearance. It is 0.8" narrower.