34.0" tall, 12.0" wide, 6.0" sidewall
A 305/50R22 tire is 34.0 inches (864 mm) tall and 12.0 inches wide. The sidewall is 50% of the width, 6.0 inches, on a 22-inch wheel, and the tire turns about 593 times per mile.
In flotation terms that is about 34.0x12.0R22. People often call it a 34-inch tire.
The size most often compared with it is 285/55R22, which is 0.3" taller (+1.0%). At an indicated 60 mph you would be doing 60.6 mph on it.
| Current | New | Difference |
|---|
| Shows | Actual speed |
|---|
Same 22" wheel, within 20 mm of width and 10 points of aspect ratio.
| Size | Diameter | Width | Sidewall | vs 305/50R22 | |
|---|---|---|---|---|---|
| 285/55R22 | 34.3" | 11.2" | 6.2" | +1.0% | |
| 295/50R22 | 33.6" | 11.6" | 5.8" | −1.2% | |
| 315/50R22 | 34.4" | 12.4" | 6.2" | +1.2% | |
| 325/45R22 | 33.5" | 12.8" | 5.8" | −1.4% | |
| 295/55R22 | 34.8" | 11.6" | 6.4" | +2.3% | |
| 285/50R22 | 33.2" | 11.2" | 5.6" | −2.3% | |
| 325/50R22 | 34.8" | 12.8" | 6.4" | +2.3% | |
| 315/45R22 | 33.2" | 12.4" | 5.6" | −2.5% | |
| 35x12.50R22 | 35.0" | 12.5" | 6.5" | +2.9% | |
| 33x12.50R22 | 33.0" | 12.5" | 5.5" | −3.0% |
Sizes within 2% of 34.0" on 20" or 24" wheels.
| Size | Diameter | Width | Sidewall | vs 305/50R22 | |
|---|---|---|---|---|---|
| 275/65R20 | 34.1" | 10.8" | 7.0" | +0.2% | |
| 325/55R20 | 34.1" | 12.8" | 7.0" | +0.2% | |
| 295/60R20 | 33.9" | 11.6" | 7.0" | −0.2% | |
| 315/55R20 | 33.6" | 12.4" | 6.8" | −1.1% | |
| 305/40R24 | 33.6" | 12.0" | 4.8" | −1.2% | |
| 305/60R20 | 34.4" | 12.0" | 7.2" | +1.2% |
Actual speed when the speedometer is calibrated for 305/50R22.
| Speedometer shows | on 285/55R22 | on 295/50R22 | on 315/50R22 |
|---|---|---|---|
| 30 mph | 30.3 mph | 29.7 mph | 30.3 mph |
| 45 mph | 45.4 mph | 44.5 mph | 45.5 mph |
| 60 mph | 60.6 mph | 59.3 mph | 60.7 mph |
| 70 mph | 70.7 mph | 69.2 mph | 70.8 mph |
34.0 inches (864 mm). The sidewall is 6.0 inches.
12.0 inches (305 mm) section width, measured sidewall to sidewall.
About 34.0x12.0R22.
285/55R22 is +1.0% in diameter, within the common 3% guideline. It is 0.8" narrower.