Home › 16" tire sizes › 255/85R16
255/85R16 tire size in inches
255/85R16 is 33.07" tall and 10.04" wide, and fits a 16" rim. In flotation (inch) sizing that is roughly 33.1x10.0R16.
255/85R16 dimensions
| Measurement | Inches | Metric |
|---|---|---|
| Overall diameter (height) | 33.07" | 840 mm |
| Section width | 10.04" | 255 mm |
| Sidewall height | 8.53" | 216.8 mm |
| Rim diameter | 16" | 406.4 mm |
| Circumference | 103.9" | 2639 mm |
| Revolutions per mile | 610 | |
| Aspect ratio | 85% (sidewall is 85% of the width) | |
Drawn to scale
Among the 102 sizes for 16" wheels on this site, 255/85R16 is #76 by height (shortest: 205/50R16, tallest: 385/75R16).
What people compare 255/85R16 with
Real comparisons drivers search for, worked out against 255/85R16:
| Compared size | Height | Width | Sidewall | Speedo at true 60 |
|---|---|---|---|---|
| 285/75R16 | -0.24" (-0.73%) | +1.18" | -0.11" | 60.4 mph |
| 265/75R16 | -1.42" (-4.29%) | +0.39" | -0.71" | 62.7 mph |
| 235/85R16 | -1.34" (-4.05%) | -0.79" | -0.67" | 62.5 mph |
| 315/75R16 | +1.53" (+4.63%) | +2.36" | +0.77" | 57.3 mph |
How the 255/85R16 numbers are worked out
The size code reads as 255 mm section width, 85% aspect ratio, R for radial construction and 16-inch wheel.
- Sidewall = 255 × 85% = 216.8 mm = 8.53"
- Diameter = 16" + 2 × 8.53" = 33.07"
- Circumference = π × 33.07" = 103.9"
- Revs per mile = 63,360" ÷ 103.9" = 610
Sizes that can replace 255/85R16 on a 16" wheel
Within 3% of 33.07". Last column: speedometer reading at a true 60 mph.
| Size | Diameter | Width | Difference | Speedo at true 60 mph |
|---|---|---|---|---|
| 285/75R16 | 32.83" | 11.22" | -0.73% | 60.4 mph |
| 275/80R16 | 33.32" | 10.83" | +0.76% | 59.5 mph |
| 305/70R16 | 32.81" | 12.01" | -0.79% | 60.5 mph |
| 315/70R16 | 33.36" | 12.40" | +0.88% | 59.5 mph |
| 295/75R16 | 33.42" | 11.61" | +1.06% | 59.4 mph |
| 265/80R16 | 32.69" | 10.43" | -1.15% | 60.7 mph |
| 280/75R16 | 32.54" | 11.02" | -1.6% | 61 mph |
| 265/85R16 | 33.74" | 10.43" | +2.03% | 58.8 mph |
| 245/85R16 | 32.40" | 9.65" | -2.03% | 61.2 mph |
| 295/70R16 | 32.26" | 11.61" | -2.45% | 61.5 mph |
| 275/75R16 | 32.24" | 10.83" | -2.51% | 61.5 mph |
| 375/55R16 | 32.24" | 14.76" | -2.51% | 61.5 mph |
One size wider or narrower
- Narrower: 245/85R16 — 9.65" wide, 32.40" tall
- Wider: 265/85R16 — 10.43" wide, 33.74" tall
Same height on a different wheel size
- 305/75R15 15" (-0.18%)
- 265/85R15 15" (-1%)
- 315/75R15 15" (+1.6%)
- 295/75R15 15" (-1.97%)
- 255/80R17 17" (-0.03%)
- 315/65R17 17" (+0.15%)
- 290/70R17 17" (-0.27%)
- 270/75R17 17" (-0.39%)
- 275/75R17 17" (+0.51%)
- 295/70R17 17" (+0.57%)
Questions about 255/85R16
How tall is a 255/85R16 tire in inches?
A 255/85R16 tire is 33.07 inches (840 mm) tall: the 16-inch rim plus two sidewalls of 8.53 inches each.
Is 255/85R16 a 33 inch tire?
Yes. At 33.07 inches tall it is commonly called a 33-inch tire.
How many revolutions per mile does a 255/85R16 make?
About 610 revolutions per mile, based on a calculated circumference of 103.9 inches.
What size can replace 255/85R16?
285/75R16 is the closest match on a 16" rim (-0.73% height). Check load index, speed rating and clearance first.
Compare 255/85R16 against any other size with the tire size calculator.