305/35R22 tire size
305/35R22 is a metric size: 30.4" tall, 12.0" wide, on a 22" rim — about a 30.5x12.00R22. The sidewall is 4.2" and the tire turns 663 times per mile.
305/35R22 specs
| Overall diameter (height) | 30.41" · 772 mm |
|---|---|
| Section width | 12.01" · 305 mm |
| Sidewall height | 4.20" · 107 mm (35% of width) |
| Rim diameter | 22" |
| Circumference | 95.52" · 2.426 m |
| Revolutions per mile | 663 (412 per km) |
| Inch (flotation) equivalent | 30.5x12.00R22 |
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 | |
|---|---|---|---|---|---|
| 275/40R22 | 30.66" | +0.84% | -30 mm | 60.5 mph | calculate → |
| 265/40R22 | 30.35" | -0.19% | -40 mm | 59.9 mph | calculate → |
| 265/35R22 | 29.30" | -3.63% | -40 mm | 57.8 mph | calculate → |
| 285/35R22 | 29.85" | -1.81% | -20 mm | 58.9 mph | calculate → |
| 285/40R22 | 30.98" | +1.88% | -20 mm | 61.1 mph | calculate → |
| 275/45R22 | 31.74" | +4.40% | -30 mm | 62.6 mph | calculate → |
| 275/35R22 | 29.58" | -2.72% | -30 mm | 58.4 mph | calculate → |
| 305/40R22 | 31.61" | +3.95% | 0 mm | 62.4 mph | calculate → |
| 295/35R22 | 30.13" | -0.91% | -10 mm | 59.5 mph | calculate → |
| 315/35R22 | 30.68" | +0.91% | +10 mm | 60.5 mph | calculate → |
| 325/35R22 | 30.96" | +1.81% | +20 mm | 61.1 mph | calculate → |
| 295/30R22 | 28.97" | -4.73% | -10 mm | 57.2 mph | calculate → |
| 255/40R22 | 30.03" | -1.23% | -50 mm | 59.3 mph | calculate → |
| 295/40R22 | 31.29" | +2.91% | -10 mm | 61.7 mph | calculate → |
| 315/30R22 | 29.44" | -3.17% | +10 mm | 58.1 mph | calculate → |
| 255/45R22 | 31.04" | +2.07% | -50 mm | 61.2 mph | calculate → |
| 255/35R22 | 29.03" | -4.53% | -50 mm | 57.3 mph | calculate → |
| 325/30R22 | 29.68" | -2.40% | +20 mm | 58.6 mph | calculate → |
| 305/30R22 | 29.20" | -3.95% | 0 mm | 57.6 mph | calculate → |
| 355/25R22 | 28.99" | -4.66% | +50 mm | 57.2 mph | calculate → |
| 265/45R22 | 31.39" | +3.24% | -40 mm | 61.9 mph | calculate → |
Plus / minus sizing: 21" and 23" rims
Same overall height on a different rim. Check wheel width and clearance before switching.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 295/40R21 | 30.29" | -0.38% | -10 mm | 59.8 mph | calculate → |
| 265/45R21 | 30.39" | -0.05% | -40 mm | 60.0 mph | calculate → |
| 235/50R21 | 30.25" | -0.50% | -70 mm | 59.7 mph | calculate → |
| 315/30R23 | 30.44" | +0.12% | +10 mm | 60.1 mph | calculate → |
| 325/30R23 | 30.68" | +0.89% | +20 mm | 60.5 mph | calculate → |
| 305/40R21 | 30.61" | +0.66% | 0 mm | 60.4 mph | calculate → |
| 275/35R23 | 30.58" | +0.57% | -30 mm | 60.3 mph | calculate → |
Try another size against 305/35R22
Questions
What size is 305/35R22 in inches?
305/35R22 is about 30.4" tall and 12.0" wide on a 22-inch rim — roughly a 30.5x12.00R22 in inch sizing.
What does 305/35R22 mean?
305 mm section width, sidewall 35% of the width (4.20"), radial construction, 22-inch rim.
What tire sizes are equivalent to 305/35R22?
On the same 22" rim, within 3% of the diameter: 265/40R22 (-0.19%), 275/40R22 (+0.84%), 295/35R22 (-0.91%), 315/35R22 (+0.91%), 255/40R22 (-1.23%), 285/35R22 (-1.81%).
How many revolutions per mile does a 305/35R22 tire make?
About 663 revolutions per mile (circumference 95.5").
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.