285/75R17 tire size
285/75R17 is a metric size: 33.8" tall, 11.2" wide, on a 17" rim — about a 34x11.00R17. The sidewall is 8.4" and the tire turns 596 times per mile.
285/75R17 specs
| Overall diameter (height) | 33.83" · 859 mm |
|---|---|
| Section width | 11.22" · 285 mm |
| Sidewall height | 8.42" · 214 mm (75% of width) |
| Rim diameter | 17" |
| Circumference | 106.28" · 2.700 m |
| Revolutions per mile | 596 (370 per km) |
| Inch (flotation) equivalent | 34x11.00R17 |
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 | |
|---|---|---|---|---|---|
| 285/70R17 common | 32.71" | -3.32% | 0 mm | 58.0 mph | compare → |
| 35x12.50R17 common | 35.00" | +3.46% | +33 mm | 62.1 mph | compare → |
| 315/70R17 common | 34.36" | +1.57% | +30 mm | 60.9 mph | compare → |
| 295/70R17 | 33.26" | -1.69% | +10 mm | 59.0 mph | compare → |
| 33x12.50R17 | 33.00" | -2.46% | +33 mm | 58.5 mph | compare → |
| 275/70R17 | 32.16" | -4.95% | -10 mm | 57.0 mph | compare → |
| 255/80R17 | 33.06" | -2.27% | -30 mm | 58.6 mph | compare → |
| 305/70R17 | 33.81" | -0.06% | +20 mm | 60.0 mph | compare → |
| 305/65R17 | 32.61" | -3.61% | +20 mm | 57.8 mph | compare → |
| 35x11.50R17 | 35.00" | +3.46% | +7 mm | 62.1 mph | calculate → |
| 34x10.50R17 | 34.00" | +0.50% | -18 mm | 60.3 mph | calculate → |
| 35x14.50R17 | 35.00" | +3.46% | +83 mm | 62.1 mph | calculate → |
| 35x13.50R17 | 35.00" | +3.46% | +58 mm | 62.1 mph | calculate → |
| 255/85R17 | 34.07" | +0.70% | -30 mm | 60.4 mph | calculate → |
| 275/80R17 | 34.32" | +1.45% | -10 mm | 60.9 mph | calculate → |
| 33x10.50R17 | 33.00" | -2.46% | -18 mm | 58.5 mph | calculate → |
| 33x11.50R17 | 33.00" | -2.46% | +7 mm | 58.5 mph | calculate → |
| 33x13.50R17 | 33.00" | -2.46% | +58 mm | 58.5 mph | calculate → |
| 33x13.00R17 | 33.00" | -2.46% | +45 mm | 58.5 mph | calculate → |
| 33x9.50R17 | 33.00" | -2.46% | -44 mm | 58.5 mph | calculate → |
| 35x10.50R17 | 35.00" | +3.46% | -18 mm | 62.1 mph | calculate → |
| 325/70R17 | 34.91" | +3.20% | +40 mm | 61.9 mph | calculate → |
| 235/85R17 | 32.73" | -3.26% | -50 mm | 58.0 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 | |
|---|---|---|---|---|---|
| 305/65R18 | 33.61" | -0.65% | +20 mm | 59.6 mph | compare → |
| 285/70R18 | 33.71" | -0.36% | 0 mm | 59.8 mph | compare → |
| 34x10.50R16 | 34.00" | +0.50% | -18 mm | 60.3 mph | calculate → |
| 34x12.50R16 | 34.00" | +0.50% | +33 mm | 60.3 mph | calculate → |
| 34x12.50R18 | 34.00" | +0.50% | +33 mm | 60.3 mph | calculate → |
| 34x13.50R16 | 34.00" | +0.50% | +58 mm | 60.3 mph | calculate → |
| 34x9.00R16 | 34.00" | +0.50% | -56 mm | 60.3 mph | calculate → |
| 33.5x16.50R16 | 33.50" | -0.98% | +134 mm | 59.4 mph | calculate → |
Try another size against 285/75R17
Questions
What size is 285/75R17 in inches?
285/75R17 is about 33.8" tall and 11.2" wide on a 17-inch rim — roughly a 34x11.00R17 in inch sizing.
What does 285/75R17 mean?
285 mm section width, sidewall 75% of the width (8.42"), radial construction, 17-inch rim.
What tire sizes are equivalent to 285/75R17?
On the same 17" rim, within 3% of the diameter: 305/70R17 (-0.06%), 34x10.50R17 (+0.50%), 255/85R17 (+0.70%), 275/80R17 (+1.45%), 315/70R17 (+1.57%), 295/70R17 (-1.69%).
How many revolutions per mile does a 285/75R17 tire make?
About 596 revolutions per mile (circumference 106.3").
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.