37.0" tall, 12.5" wide on a 22" wheel
A 37x12.50R22 tire is 37.0 inches tall and 12.5 inches wide and mounts on a 22-inch wheel, which leaves a 7.5-inch sidewall. It turns about 545 times per mile.
The size most often compared with it is 325/55R22, which is 0.9" shorter (−2.5%). At an indicated 60 mph you would be doing 58.5 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 37x12.50R22 | |
|---|---|---|---|---|---|
| 325/55R22 | 36.1" | 12.8" | 7.0" | −2.5% | |
| 305/55R22 | 35.2" | 12.0" | 6.6" | −4.8% | |
| 35x12.50R22 | 35.0" | 12.5" | 6.5" | −5.4% | |
| 325/50R22 | 34.8" | 12.8" | 6.4" | −6.0% | |
| 315/50R22 | 34.4" | 12.4" | 6.2" | −7.0% | |
| 305/50R22 | 34.0" | 12.0" | 6.0" | −8.1% |
Sizes within 2% of 37.0" on 20" or 24" wheels.
| Size | Diameter | Width | Sidewall | vs 37x12.50R22 | |
|---|---|---|---|---|---|
| 37x11.50R20 | 37.0" | 11.5" | 8.5" | ±0.0% | |
| 37x12.50R20 | 37.0" | 12.5" | 8.5" | ±0.0% | |
| 37x13.50R20 | 37.0" | 13.5" | 8.5" | ±0.0% | |
| 37x13.50R24 | 37.0" | 13.5" | 6.5" | ±0.0% | |
| 315/50R24 | 36.4" | 12.4" | 6.2" | −1.6% |
Actual speed when the speedometer is calibrated for 37x12.50R22.
| Speedometer shows | on 325/55R22 | on 305/55R22 | on 35x12.50R22 |
|---|---|---|---|
| 30 mph | 29.2 mph | 28.5 mph | 28.4 mph |
| 45 mph | 43.9 mph | 42.8 mph | 42.6 mph |
| 60 mph | 58.5 mph | 57.1 mph | 56.8 mph |
| 70 mph | 68.2 mph | 66.6 mph | 66.2 mph |
37.0 inches (940 mm), with a 7.5-inch sidewall on a 22-inch wheel.
There is no common metric size within half an inch of 37.0".
About 545, or 339 per kilometer.