255/80R17 tire size
255/80R17 is a metric size: 33.1" tall, 10.0" wide, on a 17" rim — about a 33x10.00R17. The sidewall is 8.0" and the tire turns 610 times per mile.
255/80R17 specs
| Overall diameter (height) | 33.06" · 840 mm |
|---|---|
| Section width | 10.04" · 255 mm |
| Sidewall height | 8.03" · 204 mm (80% of width) |
| Rim diameter | 17" |
| Circumference | 103.87" · 2.638 m |
| Revolutions per mile | 610 (379 per km) |
| Inch (flotation) equivalent | 33x10.00R17 |
Equivalent sizes on a 17" 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 | |
|---|---|---|---|---|---|
| 265/70R17 common | 31.61" | -4.41% | +10 mm | 57.4 mph | compare → |
| 285/70R17 common | 32.71" | -1.07% | +30 mm | 59.4 mph | compare → |
| 245/75R17 common | 31.47" | -4.82% | -10 mm | 57.1 mph | compare → |
| 235/80R17 common | 31.80" | -3.81% | -20 mm | 57.7 mph | compare → |
| 315/70R17 common | 34.36" | +3.93% | +60 mm | 62.4 mph | compare → |
| 255/75R17 | 32.06" | -3.04% | 0 mm | 58.2 mph | compare → |
| 295/70R17 | 33.26" | +0.60% | +40 mm | 60.4 mph | compare → |
| 285/75R17 | 33.83" | +2.32% | +30 mm | 61.4 mph | compare → |
| 33x12.50R17 | 33.00" | -0.19% | +63 mm | 59.9 mph | compare → |
| 275/70R17 | 32.16" | -2.74% | +20 mm | 58.4 mph | compare → |
| 305/70R17 | 33.81" | +2.26% | +50 mm | 61.4 mph | compare → |
| 305/65R17 | 32.61" | -1.37% | +50 mm | 59.2 mph | compare → |
| 285/65R17 | 31.59" | -4.47% | +30 mm | 57.3 mph | calculate → |
| 34x10.50R17 | 34.00" | +2.83% | +12 mm | 61.7 mph | calculate → |
| 33x10.50R17 | 33.00" | -0.19% | +12 mm | 59.9 mph | calculate → |
| 33x11.50R17 | 33.00" | -0.19% | +37 mm | 59.9 mph | calculate → |
| 33x13.50R17 | 33.00" | -0.19% | +88 mm | 59.9 mph | calculate → |
| 33x13.00R17 | 33.00" | -0.19% | +75 mm | 59.9 mph | calculate → |
| 33x9.50R17 | 33.00" | -0.19% | -14 mm | 59.9 mph | calculate → |
| 255/85R17 | 34.07" | +3.04% | 0 mm | 61.8 mph | calculate → |
| 32x11.50R17 | 32.00" | -3.22% | +37 mm | 58.1 mph | calculate → |
| 315/60R17 | 31.88" | -3.57% | +60 mm | 57.9 mph | calculate → |
| 275/80R17 | 34.32" | +3.81% | +20 mm | 62.3 mph | calculate → |
| 235/85R17 | 32.73" | -1.01% | -20 mm | 59.4 mph | calculate → |
| 32x10.50R17 | 32.00" | -3.22% | +12 mm | 58.1 mph | calculate → |
Plus / minus sizing: 16" and 18" rims
Same overall height on a different rim. Check wheel width and clearance before switching.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 275/70R18 common | 33.16" | +0.29% | +20 mm | 60.2 mph | compare → |
| 285/75R16 common | 32.83" | -0.70% | +30 mm | 59.6 mph | compare → |
| 33x12.50R18 | 33.00" | -0.19% | +63 mm | 59.9 mph | compare → |
| 305/70R16 | 32.81" | -0.76% | +50 mm | 59.5 mph | compare → |
| 255/85R16 | 33.07" | +0.01% | 0 mm | 60.0 mph | compare → |
| 325/60R18 | 33.35" | +0.88% | +70 mm | 60.5 mph | compare → |
| 33x10.50R16 | 33.00" | -0.19% | +12 mm | 59.9 mph | calculate → |
| 295/65R18 | 33.10" | +0.11% | +40 mm | 60.1 mph | calculate → |
| 33x12.50R16 | 33.00" | -0.19% | +63 mm | 59.9 mph | calculate → |
| 33x11.50R16 | 33.00" | -0.19% | +37 mm | 59.9 mph | calculate → |
| 33x13.00R16 | 33.00" | -0.19% | +75 mm | 59.9 mph | calculate → |
| 33x11.50R18 | 33.00" | -0.19% | +37 mm | 59.9 mph | calculate → |
| 33x13.50R16 | 33.00" | -0.19% | +88 mm | 59.9 mph | calculate → |
| 33x13.50R18 | 33.00" | -0.19% | +88 mm | 59.9 mph | calculate → |
| 33x13.00R18 | 33.00" | -0.19% | +75 mm | 59.9 mph | calculate → |
| 33x14.50R16 | 33.00" | -0.19% | +113 mm | 59.9 mph | calculate → |
| 33x14.00R16 | 33.00" | -0.19% | +101 mm | 59.9 mph | calculate → |
| 33x9.50R16 | 33.00" | -0.19% | -14 mm | 59.9 mph | calculate → |
| 235/80R18 | 32.80" | -0.79% | -20 mm | 59.5 mph | calculate → |
| 33x10.50R18 | 33.00" | -0.19% | +12 mm | 59.9 mph | calculate → |
Try another size against 255/80R17
Questions
What size is 255/80R17 in inches?
255/80R17 is about 33.1" tall and 10.0" wide on a 17-inch rim — roughly a 33x10.00R17 in inch sizing.
What does 255/80R17 mean?
255 mm section width, sidewall 80% of the width (8.03"), radial construction, 17-inch rim.
What tire sizes are equivalent to 255/80R17?
On the same 17" rim, within 3% of the diameter: 33x10.50R17 (-0.19%), 33x11.50R17 (-0.19%), 33x12.50R17 (-0.19%), 33x13.50R17 (-0.19%), 33x13.00R17 (-0.19%), 33x9.50R17 (-0.19%).
How many revolutions per mile does a 255/80R17 tire make?
About 610 revolutions per mile (circumference 103.9").
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.