305/50R22 tire size
305/50R22 is a metric size: 34.0" tall, 12.0" wide, on a 22" rim — about a 34x12.00R22. The sidewall is 6.0" and the tire turns 593 times per mile.
305/50R22 specs
| Overall diameter (height) | 34.01" · 864 mm |
|---|---|
| Section width | 12.01" · 305 mm |
| Sidewall height | 6.00" · 153 mm (50% of width) |
| Rim diameter | 22" |
| Circumference | 106.84" · 2.714 m |
| Revolutions per mile | 593 (368 per km) |
| Inch (flotation) equivalent | 34x12.00R22 |
Equivalent sizes on a 22" rim
Sizes within ±5% of the overall diameter. Green rows are inside the usual ±3% limit for keeping the speedometer, ABS and gearing right; red rows are bigger changes that need clearance checks.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 275/50R22 common | 32.83" | -3.47% | -30 mm | 57.9 mph | calculate → |
| 35x12.50R22 | 35.00" | +2.92% | +13 mm | 61.8 mph | calculate → |
| 305/45R22 | 32.81" | -3.53% | 0 mm | 57.9 mph | calculate → |
| 33x12.50R22 | 33.00" | -2.96% | +13 mm | 58.2 mph | calculate → |
| 325/50R22 | 34.80" | +2.32% | +20 mm | 61.4 mph | calculate → |
| 285/55R22 | 34.34" | +0.98% | -20 mm | 60.6 mph | calculate → |
| 285/50R22 | 33.22" | -2.32% | -20 mm | 58.6 mph | calculate → |
| 295/55R22 | 34.78" | +2.26% | -10 mm | 61.4 mph | calculate → |
| 295/50R22 | 33.61" | -1.16% | -10 mm | 59.3 mph | calculate → |
| 35x15.50R22 | 35.00" | +2.92% | +89 mm | 61.8 mph | calculate → |
| 305/55R22 | 35.21" | +3.53% | 0 mm | 62.1 mph | calculate → |
| 265/50R22 | 32.43" | -4.63% | -40 mm | 57.2 mph | calculate → |
| 265/60R22 | 34.52" | +1.50% | -40 mm | 60.9 mph | calculate → |
| 355/40R22 | 33.18" | -2.43% | +50 mm | 58.5 mph | calculate → |
| 315/45R22 | 33.16" | -2.49% | +10 mm | 58.5 mph | calculate → |
| 375/45R22 | 35.29" | +3.76% | +70 mm | 62.3 mph | calculate → |
| 275/60R22 | 34.99" | +2.89% | -30 mm | 61.7 mph | calculate → |
| 35x13.50R22 | 35.00" | +2.92% | +38 mm | 61.8 mph | calculate → |
| 35x14.50R22 | 35.00" | +2.92% | +63 mm | 61.8 mph | calculate → |
| 33x13.50R22 | 33.00" | -2.96% | +38 mm | 58.2 mph | calculate → |
| 33x14.50R22 | 33.00" | -2.96% | +63 mm | 58.2 mph | calculate → |
Try another size against 305/50R22
Questions
What size is 305/50R22 in inches?
305/50R22 is about 34.0" tall and 12.0" wide on a 22-inch rim — roughly a 34x12.00R22 in inch sizing.
What does 305/50R22 mean?
305 mm section width, sidewall 50% of the width (6.00"), radial construction, 22-inch rim.
What tire sizes are equivalent to 305/50R22?
On the same 22" rim, within 3% of the diameter: 285/55R22 (+0.98%), 295/50R22 (-1.16%), 265/60R22 (+1.50%), 295/55R22 (+2.26%), 285/50R22 (-2.32%), 325/50R22 (+2.32%).
How many revolutions per mile does a 305/50R22 tire make?
About 593 revolutions per mile (circumference 106.8").
How these numbers are computed
Diameter = rim + 2 × sidewall, sidewall = width × aspect ÷ 100, circumference = π × diameter, revolutions per mile = 63,360 ÷ circumference. Real tires differ by brand by a few tenths of an inch. Last reviewed October 14, 2026.