235/55R19 tire size
235/55R19 is a metric size: 29.2" tall, 9.3" wide, on a 19" rim — about a 29x9.50R19. The sidewall is 5.1" and the tire turns 691 times per mile.
235/55R19 specs
| Overall diameter (height) | 29.18" · 741 mm |
|---|---|
| Section width | 9.25" · 235 mm |
| Sidewall height | 5.09" · 129 mm (55% of width) |
| Rim diameter | 19" |
| Circumference | 91.66" · 2.328 m |
| Revolutions per mile | 691 (430 per km) |
| Inch (flotation) equivalent | 29x9.50R19 |
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 | |
|---|---|---|---|---|---|
| 255/50R19 common | 29.04" | -0.47% | +20 mm | 59.7 mph | compare → |
| 255/45R19 common | 28.04" | -3.91% | +20 mm | 57.7 mph | compare → |
| 225/55R19 common | 28.74" | -1.48% | -10 mm | 59.1 mph | compare → |
| 235/50R19 common | 28.25" | -3.17% | 0 mm | 58.1 mph | compare → |
| 245/55R19 common | 29.61" | +1.48% | +10 mm | 60.9 mph | compare → |
| 255/55R19 common | 30.04" | +2.97% | +20 mm | 61.8 mph | compare → |
| 265/50R19 common | 29.43" | +0.88% | +30 mm | 60.5 mph | compare → |
| 245/50R19 common | 28.65" | -1.82% | +10 mm | 58.9 mph | compare → |
| 285/40R19 | 27.98" | -4.12% | +50 mm | 57.5 mph | compare → |
| 275/45R19 | 28.74" | -1.48% | +40 mm | 59.1 mph | compare → |
| 285/45R19 | 29.10" | -0.27% | +50 mm | 59.8 mph | compare → |
| 275/50R19 | 29.83" | +2.23% | +40 mm | 61.3 mph | compare → |
| 265/55R19 | 30.48" | +4.45% | +30 mm | 62.7 mph | compare → |
| 295/40R19 | 28.29" | -3.04% | +60 mm | 58.2 mph | compare → |
| 265/45R19 | 28.39" | -2.70% | +30 mm | 58.4 mph | calculate → |
| 235/60R19 | 30.10" | +3.17% | 0 mm | 61.9 mph | calculate → |
| 295/45R19 | 29.45" | +0.94% | +60 mm | 60.6 mph | calculate → |
| 345/35R19 | 28.51" | -2.29% | +110 mm | 58.6 mph | calculate → |
| 315/40R19 | 28.92" | -0.88% | +80 mm | 59.5 mph | calculate → |
| 155/80R19 | 28.76" | -1.42% | -80 mm | 59.1 mph | calculate → |
| 175/80R19 | 30.02" | +2.90% | -60 mm | 61.7 mph | calculate → |
| 145/80R19 | 28.13" | -3.58% | -90 mm | 57.9 mph | calculate → |
| 225/50R19 | 27.86" | -4.52% | -10 mm | 57.3 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 | |
|---|---|---|---|---|---|
| 235/60R18 common | 29.10" | -0.26% | 0 mm | 59.8 mph | compare → |
| 255/45R20 common | 29.04" | -0.49% | +20 mm | 59.7 mph | compare → |
| 255/55R18 common | 29.04" | -0.46% | +20 mm | 59.7 mph | compare → |
| 265/45R20 common | 29.39" | +0.73% | +30 mm | 60.4 mph | compare → |
| 295/40R20 | 29.29" | +0.39% | +60 mm | 60.2 mph | compare → |
| 285/40R20 | 28.98" | -0.69% | +50 mm | 59.6 mph | compare → |
| 235/50R20 | 29.25" | +0.26% | 0 mm | 60.2 mph | compare → |
| 155/90R18 | 28.98" | -0.66% | -80 mm | 59.6 mph | calculate → |
| 285/50R18 | 29.22" | +0.15% | +50 mm | 60.1 mph | calculate → |
| 325/35R20 | 28.96" | -0.76% | +90 mm | 59.5 mph | calculate → |
| 29x15.00R20 | 29.00" | -0.61% | +146 mm | 59.6 mph | calculate → |
| 29x18.00R20 | 29.00" | -0.61% | +222 mm | 59.6 mph | calculate → |
Try another size against 235/55R19
Questions
What size is 235/55R19 in inches?
235/55R19 is about 29.2" tall and 9.3" wide on a 19-inch rim — roughly a 29x9.50R19 in inch sizing.
What does 235/55R19 mean?
235 mm section width, sidewall 55% of the width (5.09"), radial construction, 19-inch rim.
What tire sizes are equivalent to 235/55R19?
On the same 19" rim, within 3% of the diameter: 285/45R19 (-0.27%), 255/50R19 (-0.47%), 265/50R19 (+0.88%), 315/40R19 (-0.88%), 295/45R19 (+0.94%), 155/80R19 (-1.42%).
How many revolutions per mile does a 235/55R19 tire make?
About 691 revolutions per mile (circumference 91.7").
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.