275/55R19 tire size
275/55R19 is a metric size: 30.9" tall, 10.8" wide, on a 19" rim — about a 31x11.00R19. The sidewall is 6.0" and the tire turns 652 times per mile.
275/55R19 specs
| Overall diameter (height) | 30.91" · 785 mm |
|---|---|
| Section width | 10.83" · 275 mm |
| Sidewall height | 5.95" · 151 mm (55% of width) |
| Rim diameter | 19" |
| Circumference | 97.10" · 2.466 m |
| Revolutions per mile | 652 (405 per km) |
| Inch (flotation) equivalent | 31x11.00R19 |
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 | |
|---|---|---|---|---|---|
| 245/55R19 common | 29.61" | -4.20% | -30 mm | 57.5 mph | compare → |
| 255/55R19 common | 30.04" | -2.80% | -20 mm | 58.3 mph | compare → |
| 255/60R19 common | 31.05" | +0.45% | -20 mm | 60.3 mph | compare → |
| 265/50R19 common | 29.43" | -4.78% | -10 mm | 57.1 mph | compare → |
| 265/55R19 | 30.48" | -1.40% | -10 mm | 59.2 mph | compare → |
| 275/50R19 | 29.83" | -3.50% | 0 mm | 57.9 mph | compare → |
| 255/65R19 | 32.05" | +3.69% | -20 mm | 62.2 mph | calculate → |
| 235/60R19 | 30.10" | -2.61% | -40 mm | 58.4 mph | calculate → |
| 295/45R19 | 29.45" | -4.71% | +20 mm | 57.2 mph | calculate → |
| 235/65R19 | 31.03" | +0.38% | -40 mm | 60.2 mph | calculate → |
| 165/90R19 | 30.69" | -0.70% | -110 mm | 59.6 mph | calculate → |
| 175/80R19 | 30.02" | -2.87% | -100 mm | 58.3 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 | |
|---|---|---|---|---|---|
| 255/55R20 common | 31.04" | +0.43% | -20 mm | 60.3 mph | compare → |
| 255/65R18 common | 31.05" | +0.46% | -20 mm | 60.3 mph | compare → |
| 275/50R20 common | 30.83" | -0.27% | 0 mm | 59.8 mph | compare → |
| 275/60R18 | 30.99" | +0.27% | 0 mm | 60.2 mph | compare → |
| 235/60R20 | 31.10" | +0.62% | -40 mm | 60.4 mph | calculate → |
| 235/70R18 | 30.95" | +0.14% | -40 mm | 60.1 mph | calculate → |
| 31x18.00R20 | 31.00" | +0.29% | +182 mm | 60.2 mph | calculate → |
| 305/45R20 | 30.81" | -0.33% | +30 mm | 59.8 mph | calculate → |
Try another size against 275/55R19
Questions
What size is 275/55R19 in inches?
275/55R19 is about 30.9" tall and 10.8" wide on a 19-inch rim — roughly a 31x11.00R19 in inch sizing.
What does 275/55R19 mean?
275 mm section width, sidewall 55% of the width (5.95"), radial construction, 19-inch rim.
What tire sizes are equivalent to 275/55R19?
On the same 19" rim, within 3% of the diameter: 235/65R19 (+0.38%), 255/60R19 (+0.45%), 165/90R19 (-0.70%), 265/55R19 (-1.40%), 235/60R19 (-2.61%), 255/55R19 (-2.80%).
How many revolutions per mile does a 275/55R19 tire make?
About 652 revolutions per mile (circumference 97.1").
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.