325/30R22 tire size
325/30R22 is a metric size: 29.7" tall, 12.8" wide, on a 22" rim — about a 29.5x13.00R22. The sidewall is 3.8" and the tire turns 680 times per mile.
325/30R22 specs
| Overall diameter (height) | 29.68" · 754 mm |
|---|---|
| Section width | 12.80" · 325 mm |
| Sidewall height | 3.84" · 98 mm (30% of width) |
| Rim diameter | 22" |
| Circumference | 93.23" · 2.368 m |
| Revolutions per mile | 680 (422 per km) |
| Inch (flotation) equivalent | 29.5x13.00R22 |
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" | +3.32% | -50 mm | 62.0 mph | calculate → |
| 265/40R22 | 30.35" | +2.26% | -60 mm | 61.4 mph | calculate → |
| 265/35R22 | 29.30" | -1.26% | -60 mm | 59.2 mph | calculate → |
| 285/35R22 | 29.85" | +0.60% | -40 mm | 60.4 mph | calculate → |
| 285/40R22 | 30.98" | +4.38% | -40 mm | 62.6 mph | calculate → |
| 275/35R22 | 29.58" | -0.33% | -50 mm | 59.8 mph | calculate → |
| 295/35R22 | 30.13" | +1.53% | -30 mm | 60.9 mph | calculate → |
| 315/35R22 | 30.68" | +3.38% | -10 mm | 62.0 mph | calculate → |
| 325/35R22 | 30.96" | +4.31% | 0 mm | 62.6 mph | calculate → |
| 285/30R22 | 28.73" | -3.18% | -40 mm | 58.1 mph | calculate → |
| 295/30R22 | 28.97" | -2.39% | -30 mm | 58.6 mph | calculate → |
| 315/30R22 | 29.44" | -0.80% | -10 mm | 59.5 mph | calculate → |
| 255/40R22 | 30.03" | +1.19% | -70 mm | 60.7 mph | calculate → |
| 265/30R22 | 28.26" | -4.78% | -60 mm | 57.1 mph | calculate → |
| 255/45R22 | 31.04" | +4.58% | -70 mm | 62.7 mph | calculate → |
| 255/35R22 | 29.03" | -2.19% | -70 mm | 58.7 mph | calculate → |
| 335/25R22 | 28.59" | -3.65% | +10 mm | 57.8 mph | calculate → |
| 305/35R22 | 30.41" | +2.45% | -20 mm | 61.5 mph | calculate → |
| 315/25R22 | 28.20" | -4.97% | -10 mm | 57.0 mph | calculate → |
| 305/30R22 | 29.20" | -1.59% | -20 mm | 59.0 mph | calculate → |
| 355/25R22 | 28.99" | -2.32% | +30 mm | 58.6 mph | calculate → |
| 275/30R22 | 28.50" | -3.98% | -50 mm | 57.6 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 | |
|---|---|---|---|---|---|
| 275/40R21 | 29.66" | -0.05% | -50 mm | 60.0 mph | calculate → |
| 315/35R21 | 29.68" | +0.01% | -10 mm | 60.0 mph | calculate → |
| 245/45R21 | 29.68" | +0.01% | -80 mm | 60.0 mph | calculate → |
| 305/35R21 | 29.41" | -0.92% | -20 mm | 59.5 mph | calculate → |
| 295/30R23 | 29.97" | +0.98% | -30 mm | 60.6 mph | calculate → |
Try another size against 325/30R22
Questions
What size is 325/30R22 in inches?
325/30R22 is about 29.7" tall and 12.8" wide on a 22-inch rim — roughly a 29.5x13.00R22 in inch sizing.
What does 325/30R22 mean?
325 mm section width, sidewall 30% of the width (3.84"), radial construction, 22-inch rim.
What tire sizes are equivalent to 325/30R22?
On the same 22" rim, within 3% of the diameter: 275/35R22 (-0.33%), 285/35R22 (+0.60%), 315/30R22 (-0.80%), 255/40R22 (+1.19%), 265/35R22 (-1.26%), 295/35R22 (+1.53%).
How many revolutions per mile does a 325/30R22 tire make?
About 680 revolutions per mile (circumference 93.2").
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.