Home › 16" tire sizes › 255/70R16
255/70R16 tire size in inches
255/70R16 is 30.06" tall and 10.04" wide, and fits a 16" rim. In flotation (inch) sizing that is roughly 30.1x10.0R16.
255/70R16 dimensions
| Measurement | Inches | Metric |
|---|---|---|
| Overall diameter (height) | 30.06" | 763 mm |
| Section width | 10.04" | 255 mm |
| Sidewall height | 7.03" | 178.5 mm |
| Rim diameter | 16" | 406.4 mm |
| Circumference | 94.4" | 2398 mm |
| Revolutions per mile | 671 | |
| Aspect ratio | 70% (sidewall is 70% of the width) | |
Drawn to scale
Among the 102 sizes for 16" wheels on this site, 255/70R16 is #45 by height (shortest: 205/50R16, tallest: 385/75R16).
What people compare 255/70R16 with
Real comparisons drivers search for, worked out against 255/70R16:
| Compared size | Height | Width | Sidewall | Speedo at true 60 |
|---|---|---|---|---|
| 245/75R16 | +0.41" (+1.36%) | -0.39" | +0.20" | 59.2 mph |
| 265/70R16 | +0.55" (+1.83%) | +0.39" | +0.27" | 58.9 mph |
| 265/75R16 | +1.59" (+5.29%) | +0.39" | +0.79" | 57 mph |
| 235/70R16 | -1.11" (-3.69%) | -0.79" | -0.55" | 62.3 mph |
| 245/70R16 | -0.56" (-1.86%) | -0.39" | -0.28" | 61.1 mph |
How the 255/70R16 numbers are worked out
The size code reads as 255 mm section width, 70% aspect ratio, R for radial construction and 16-inch wheel.
- Sidewall = 255 × 70% = 178.5 mm = 7.03"
- Diameter = 16" + 2 × 7.03" = 30.06"
- Circumference = π × 30.06" = 94.4"
- Revs per mile = 63,360" ÷ 94.4" = 671
Sizes that can replace 255/70R16 on a 16" wheel
Within 3% of 30.06". Last column: speedometer reading at a true 60 mph.
| Size | Diameter | Width | Difference | Speedo at true 60 mph |
|---|---|---|---|---|
| 275/65R16 | 30.07" | 10.83" | +0.03% | 60 mph |
| 225/80R16 | 30.17" | 8.86" | +0.37% | 59.8 mph |
| 235/75R16 | 29.88" | 9.25" | -0.6% | 60.4 mph |
| 260/70R16 | 30.33" | 10.24" | +0.9% | 59.5 mph |
| 215/85R16 | 30.39" | 8.46" | +1.1% | 59.3 mph |
| 205/85R16 | 29.72" | 8.07" | -1.13% | 60.7 mph |
| 305/60R16 | 30.41" | 12.01" | +1.16% | 59.3 mph |
| 245/75R16 | 30.47" | 9.65" | +1.36% | 59.2 mph |
| 315/55R16 | 29.64" | 12.40" | -1.4% | 60.9 mph |
| 265/65R16 | 29.56" | 10.43" | -1.66% | 61 mph |
| 215/80R16 | 29.54" | 8.46" | -1.73% | 61.1 mph |
| 285/65R16 | 30.59" | 11.22" | +1.76% | 59 mph |
One size wider or narrower
Same height on a different wheel size
- 255/80R14 14" (0%)
- 255/75R15 15" (0%)
- 295/65R15 15" (+0.13%)
- 275/70R15 15" (+0.33%)
- 315/60R15 15" (-0.6%)
- 235/80R15 15" (-0.86%)
- 325/60R15 15" (+0.96%)
- 265/70R15 15" (-1.5%)
- 285/65R15 15" (-1.56%)
- 265/75R15 15" (+1.96%)
Questions about 255/70R16
How tall is a 255/70R16 tire in inches?
A 255/70R16 tire is 30.06 inches (763 mm) tall: the 16-inch rim plus two sidewalls of 7.03 inches each.
Is 255/70R16 a 30 inch tire?
Yes. At 30.06 inches tall it is commonly called a 30-inch tire.
How many revolutions per mile does a 255/70R16 make?
About 671 revolutions per mile, based on a calculated circumference of 94.4 inches.
What size can replace 255/70R16?
275/65R16 is the closest match on a 16" rim (+0.03% height). Check load index, speed rating and clearance first.
Compare 255/70R16 against any other size with the tire size calculator.