225/55R19 tire size
225/55R19 is a metric size: 28.7" tall, 8.9" wide, on a 19" rim — about a 28.5x9.00R19. The sidewall is 4.9" and the tire turns 702 times per mile.
225/55R19 specs
| Overall diameter (height) | 28.74" · 730 mm |
|---|---|
| Section width | 8.86" · 225 mm |
| Sidewall height | 4.87" · 124 mm (55% of width) |
| Rim diameter | 19" |
| Circumference | 90.30" · 2.294 m |
| Revolutions per mile | 702 (436 per km) |
| Inch (flotation) equivalent | 28.5x9.00R19 |
Equivalent sizes on a 19" 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 | |
|---|---|---|---|---|---|
| 235/55R19 common | 29.18" | +1.51% | +10 mm | 60.9 mph | compare → |
| 245/45R19 common | 27.68" | -3.70% | +20 mm | 57.8 mph | compare → |
| 255/50R19 common | 29.04" | +1.03% | +30 mm | 60.6 mph | compare → |
| 255/45R19 common | 28.04" | -2.47% | +30 mm | 58.5 mph | compare → |
| 275/40R19 common | 27.66" | -3.77% | +50 mm | 57.7 mph | compare → |
| 235/50R19 common | 28.25" | -1.71% | +10 mm | 59.0 mph | compare → |
| 245/55R19 common | 29.61" | +3.01% | +20 mm | 61.8 mph | compare → |
| 255/55R19 common | 30.04" | +4.52% | +30 mm | 62.7 mph | compare → |
| 235/45R19 common | 27.33" | -4.93% | +10 mm | 57.0 mph | compare → |
| 265/50R19 common | 29.43" | +2.40% | +40 mm | 61.4 mph | compare → |
| 245/50R19 common | 28.65" | -0.34% | +20 mm | 59.8 mph | compare → |
| 285/40R19 | 27.98" | -2.67% | +60 mm | 58.4 mph | compare → |
| 265/40R19 | 27.35" | -4.86% | +40 mm | 57.1 mph | compare → |
| 275/45R19 | 28.74" | 0.00% | +50 mm | 60.0 mph | compare → |
| 285/45R19 | 29.10" | +1.23% | +60 mm | 60.7 mph | compare → |
| 275/50R19 | 29.83" | +3.77% | +50 mm | 62.3 mph | compare → |
| 295/40R19 | 28.29" | -1.58% | +70 mm | 59.1 mph | compare → |
| 265/45R19 | 28.39" | -1.23% | +40 mm | 59.3 mph | calculate → |
| 305/35R19 | 27.41" | -4.66% | +80 mm | 57.2 mph | calculate → |
| 235/60R19 | 30.10" | +4.73% | +10 mm | 62.8 mph | calculate → |
| 155/70R19 | 27.54" | -4.18% | -70 mm | 57.5 mph | calculate → |
| 295/45R19 | 29.45" | +2.47% | +70 mm | 61.5 mph | calculate → |
| 355/30R19 | 27.39" | -4.73% | +130 mm | 57.2 mph | calculate → |
| 345/35R19 | 28.51" | -0.82% | +120 mm | 59.5 mph | calculate → |
| 215/50R19 | 27.46" | -4.45% | -10 mm | 57.3 mph | calculate → |
| 155/80R19 | 28.76" | +0.07% | -70 mm | 60.0 mph | calculate → |
| 315/40R19 | 28.92" | +0.62% | +90 mm | 60.4 mph | calculate → |
| 315/35R19 | 27.68" | -3.70% | +90 mm | 57.8 mph | calculate → |
| 175/80R19 | 30.02" | +4.45% | -50 mm | 62.7 mph | calculate → |
| 145/80R19 | 28.13" | -2.12% | -80 mm | 58.7 mph | calculate → |
| 225/50R19 | 27.86" | -3.08% | 0 mm | 58.2 mph | calculate → |
Plus / minus sizing: 18" and 20" rims
Same overall height on a different rim. Check wheel width and clearance before switching.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 225/60R18 common | 28.63" | -0.40% | 0 mm | 59.8 mph | compare → |
| 245/45R20 common | 28.68" | -0.22% | +20 mm | 59.9 mph | compare → |
| 275/40R20 common | 28.66" | -0.29% | +50 mm | 59.8 mph | compare → |
| 315/35R20 common | 28.68" | -0.22% | +90 mm | 59.9 mph | compare → |
| 245/55R18 | 28.61" | -0.47% | +20 mm | 59.7 mph | compare → |
| 285/40R20 | 28.98" | +0.81% | +60 mm | 60.5 mph | compare → |
| 155/90R18 | 28.98" | +0.84% | -70 mm | 60.5 mph | calculate → |
| 305/45R18 | 28.81" | +0.22% | +80 mm | 60.1 mph | calculate → |
| 325/35R20 | 28.96" | +0.74% | +100 mm | 60.4 mph | calculate → |
| 29x15.00R20 | 29.00" | +0.89% | +156 mm | 60.5 mph | calculate → |
| 29x18.00R20 | 29.00" | +0.89% | +232 mm | 60.5 mph | calculate → |
Try another size against 225/55R19
Questions
What size is 225/55R19 in inches?
225/55R19 is about 28.7" tall and 8.9" wide on a 19-inch rim — roughly a 28.5x9.00R19 in inch sizing.
What does 225/55R19 mean?
225 mm section width, sidewall 55% of the width (4.87"), radial construction, 19-inch rim.
What tire sizes are equivalent to 225/55R19?
On the same 19" rim, within 3% of the diameter: 275/45R19 (0.00%), 155/80R19 (+0.07%), 245/50R19 (-0.34%), 315/40R19 (+0.62%), 345/35R19 (-0.82%), 255/50R19 (+1.03%).
How many revolutions per mile does a 225/55R19 tire make?
About 702 revolutions per mile (circumference 90.3").
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.