34.8" tall, 12.0" wide, 5.4" sidewall
A 305/45R24 tire is 34.8 inches (884 mm) tall and 12.0 inches wide. The sidewall is 45% of the width, 5.4 inches, on a 24-inch wheel, and the tire turns about 579 times per mile.
In flotation terms that is about 34.8x12.0R24, closest to the common 35x12.50R24 (35.0"). People often call it a 35-inch tire.
The size most often compared with it is 35x12.50R24, which is 0.2" taller (+0.6%). At an indicated 60 mph you would be doing 60.3 mph on it.
| Current | New | Difference |
|---|
| Shows | Actual speed |
|---|
Same 24" wheel, within 20 mm of width and 10 points of aspect ratio.
| Size | Diameter | Width | Sidewall | vs 305/45R24 | |
|---|---|---|---|---|---|
| 35x12.50R24 | 35.0" | 12.5" | 5.5" | +0.6% | |
| 295/45R24 | 34.5" | 11.6" | 5.2" | −1.0% | |
| 315/45R24 | 35.2" | 12.4" | 5.6" | +1.0% | |
| 325/45R24 | 35.5" | 12.8" | 5.8" | +2.0% | |
| 305/40R24 | 33.6" | 12.0" | 4.8" | −3.4% | |
| 295/40R24 | 33.3" | 11.6" | 4.6" | −4.4% | |
| 315/50R24 | 36.4" | 12.4" | 6.2" | +4.6% | |
| 285/40R24 | 33.0" | 11.2" | 4.5" | −5.3% | |
| 315/35R24 | 32.7" | 12.4" | 4.3" | −6.1% | |
| 305/35R24 | 32.4" | 12.0" | 4.2" | −6.9% |
Sizes within 2% of 34.8" on 22" wheels.
| Size | Diameter | Width | Sidewall | vs 305/45R24 | |
|---|---|---|---|---|---|
| 325/50R22 | 34.8" | 12.8" | 6.4" | −0.0% | |
| 295/55R22 | 34.8" | 11.6" | 6.4" | −0.1% | |
| 275/60R22 | 35.0" | 10.8" | 6.5" | +0.5% | |
| 35x12.50R22 | 35.0" | 12.5" | 6.5" | +0.6% | |
| 265/60R22 | 34.5" | 10.4" | 6.3" | −0.8% | |
| 305/55R22 | 35.2" | 12.0" | 6.6" | +1.2% |
Actual speed when the speedometer is calibrated for 305/45R24.
| Speedometer shows | on 35x12.50R24 | on 295/45R24 | on 315/45R24 |
|---|---|---|---|
| 30 mph | 30.2 mph | 29.7 mph | 30.3 mph |
| 45 mph | 45.2 mph | 44.5 mph | 45.5 mph |
| 60 mph | 60.3 mph | 59.4 mph | 60.6 mph |
| 70 mph | 70.4 mph | 69.3 mph | 70.7 mph |
34.8 inches (884 mm). The sidewall is 5.4 inches.
12.0 inches (305 mm) section width, measured sidewall to sidewall.
About 34.8x12.0R24; the closest common flotation size is 35x12.50R24 at 35.0".
35x12.50R24 is +0.6% in diameter, within the common 3% guideline. It is 0.5" wider.