325/55R22 tire size
325/55R22 is a metric size: 36.1" tall, 12.8" wide, on a 22" rim — about a 36x13.00R22. The sidewall is 7.0" and the tire turns 559 times per mile.
325/55R22 specs
| Overall diameter (height) | 36.07" · 916 mm |
|---|---|
| Section width | 12.80" · 325 mm |
| Sidewall height | 7.04" · 179 mm (55% of width) |
| Rim diameter | 22" |
| Circumference | 113.33" · 2.879 m |
| Revolutions per mile | 559 (347 per km) |
| Inch (flotation) equivalent | 36x13.00R22 |
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 | |
|---|---|---|---|---|---|
| 35x12.50R22 | 35.00" | -2.98% | -7 mm | 58.2 mph | calculate → |
| 37x13.50R22 | 37.00" | +2.56% | +18 mm | 61.5 mph | calculate → |
| 325/50R22 | 34.80" | -3.55% | 0 mm | 57.9 mph | calculate → |
| 285/55R22 | 34.34" | -4.80% | -40 mm | 57.1 mph | calculate → |
| 37x12.50R22 | 37.00" | +2.56% | -7 mm | 61.5 mph | calculate → |
| 295/55R22 | 34.78" | -3.60% | -30 mm | 57.8 mph | calculate → |
| 305/55R22 | 35.21" | -2.40% | -20 mm | 58.6 mph | calculate → |
| 35x15.50R22 | 35.00" | -2.98% | +69 mm | 58.2 mph | calculate → |
| 375/45R22 | 35.29" | -2.18% | +50 mm | 58.7 mph | calculate → |
| 265/60R22 | 34.52" | -4.31% | -60 mm | 57.4 mph | calculate → |
| 275/60R22 | 34.99" | -3.00% | -50 mm | 58.2 mph | calculate → |
| 335/55R22 | 36.51" | +1.20% | +10 mm | 60.7 mph | calculate → |
| 35x13.50R22 | 35.00" | -2.98% | +18 mm | 58.2 mph | calculate → |
| 35x14.50R22 | 35.00" | -2.98% | +43 mm | 58.2 mph | calculate → |
| 325/60R22 | 37.35" | +3.55% | 0 mm | 62.1 mph | calculate → |
Try another size against 325/55R22
Questions
What size is 325/55R22 in inches?
325/55R22 is about 36.1" tall and 12.8" wide on a 22-inch rim — roughly a 36x13.00R22 in inch sizing.
What does 325/55R22 mean?
325 mm section width, sidewall 55% of the width (7.04"), radial construction, 22-inch rim.
What tire sizes are equivalent to 325/55R22?
On the same 22" rim, within 3% of the diameter: 335/55R22 (+1.20%), 375/45R22 (-2.18%), 305/55R22 (-2.40%), 37x12.50R22 (+2.56%), 37x13.50R22 (+2.56%), 35x12.50R22 (-2.98%).
How many revolutions per mile does a 325/55R22 tire make?
About 559 revolutions per mile (circumference 113.3").
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.