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305/75R16 tire size in inches
305/75R16 is 34.01" tall and 12.01" wide, and fits a 16" rim. In flotation (inch) sizing that is roughly 34.0x12.0R16.
305/75R16 dimensions
| Measurement | Inches | Metric |
|---|---|---|
| Overall diameter (height) | 34.01" | 864 mm |
| Section width | 12.01" | 305 mm |
| Sidewall height | 9.01" | 228.8 mm |
| Rim diameter | 16" | 406.4 mm |
| Circumference | 106.8" | 2714 mm |
| Revolutions per mile | 593 | |
| Aspect ratio | 75% (sidewall is 75% of the width) | |
Drawn to scale
Among the 102 sizes for 16" wheels on this site, 305/75R16 is #83 by height (shortest: 205/50R16, tallest: 385/75R16).
What people compare 305/75R16 with
Real comparisons drivers search for, worked out against 305/75R16:
| Compared size | Height | Width | Sidewall | Speedo at true 60 |
|---|---|---|---|---|
| 285/75R16 | -1.18" (-3.47%) | -0.79" | -0.59" | 62.2 mph |
| 315/75R16 | +0.59" (+1.73%) | +0.39" | +0.29" | 59 mph |
305/75R16 against the most popular 16" sizes
| Popular size | Height | Width | Sidewall | Speedo at true 60 |
|---|---|---|---|---|
| 265/75R16 | -2.36" (-6.94%) | -1.58" | -1.19" | 64.5 mph |
| 265/70R16 | -3.40" (-10%) | -1.58" | -1.71" | 66.7 mph |
| 245/75R16 | -3.54" (-10.41%) | -2.36" | -1.78" | 67 mph |
| 235/85R16 | -2.28" (-6.7%) | -2.76" | -1.15" | 64.3 mph |
| 305/70R16 | -1.20" (-3.53%) | 0.00" | -0.60" | 62.2 mph |
How the 305/75R16 numbers are worked out
The size code reads as 305 mm section width, 75% aspect ratio, R for radial construction and 16-inch wheel.
- Sidewall = 305 × 75% = 228.8 mm = 9.01"
- Diameter = 16" + 2 × 9.01" = 34.01"
- Circumference = π × 34.01" = 106.8"
- Revs per mile = 63,360" ÷ 106.8" = 593
Sizes that can replace 305/75R16 on a 16" wheel
Within 3% of 34.01". Last column: speedometer reading at a true 60 mph.
| Size | Diameter | Width | Difference | Speedo at true 60 mph |
|---|---|---|---|---|
| 285/80R16 | 33.95" | 11.22" | -0.18% | 60.1 mph |
| 325/70R16 | 33.91" | 12.80" | -0.29% | 60.2 mph |
| 265/85R16 | 33.74" | 10.43" | -0.79% | 60.5 mph |
| 275/85R16 | 34.41" | 10.83" | +1.18% | 59.3 mph |
| 295/80R16 | 34.58" | 11.61" | +1.68% | 59 mph |
| 315/75R16 | 34.60" | 12.40" | +1.73% | 59 mph |
| 295/75R16 | 33.42" | 11.61" | -1.73% | 61.1 mph |
| 315/70R16 | 33.36" | 12.40" | -1.91% | 61.2 mph |
| 275/80R16 | 33.32" | 10.83" | -2.03% | 61.2 mph |
| 255/85R16 | 33.07" | 10.04" | -2.76% | 61.7 mph |
One size wider or narrower
Same height on a different wheel size
- 325/75R15 15" (+0.53%)
- 315/75R15 15" (-1.21%)
- 255/85R17 17" (+0.18%)
- 285/75R17 17" (-0.53%)
- 305/70R17 17" (-0.59%)
- 275/80R17 17" (+0.91%)
- 265/80R17 17" (-0.94%)
- 315/70R17 17" (+1.03%)
- 325/65R17 17" (-1.12%)
- 295/75R17 17" (+1.21%)
Questions about 305/75R16
How tall is a 305/75R16 tire in inches?
A 305/75R16 tire is 34.01 inches (864 mm) tall: the 16-inch rim plus two sidewalls of 9.01 inches each.
Is 305/75R16 a 34 inch tire?
Yes. At 34.01 inches tall it is commonly called a 34-inch tire.
How many revolutions per mile does a 305/75R16 make?
About 593 revolutions per mile, based on a calculated circumference of 106.8 inches.
What size can replace 305/75R16?
285/80R16 is the closest match on a 16" rim (-0.18% height). Check load index, speed rating and clearance first.
Compare 305/75R16 against any other size with the tire size calculator.