Home › 17" tire sizes › 305/65R17
305/65R17 tire size in inches
305/65R17 is 32.61" tall and 12.01" wide, and fits a 17" rim. In flotation (inch) sizing that is roughly 32.6x12.0R17.
305/65R17 dimensions
| Measurement | Inches | Metric |
|---|---|---|
| Overall diameter (height) | 32.61" | 828 mm |
| Section width | 12.01" | 305 mm |
| Sidewall height | 7.81" | 198.2 mm |
| Rim diameter | 17" | 431.8 mm |
| Circumference | 102.5" | 2602 mm |
| Revolutions per mile | 619 | |
| Aspect ratio | 65% (sidewall is 65% of the width) | |
Drawn to scale
Among the 124 sizes for 17" wheels on this site, 305/65R17 is #83 by height (shortest: 205/40R17, tallest: 385/70R17).
What people compare 305/65R17 with
Real comparisons drivers search for, worked out against 305/65R17:
| Compared size | Height | Width | Sidewall | Speedo at true 60 |
|---|---|---|---|---|
| 285/70R17 | +0.10" (+0.31%) | -0.79" | +0.04" | 59.8 mph |
305/65R17 against the most popular 17" sizes
| Popular size | Height | Width | Sidewall | Speedo at true 60 |
|---|---|---|---|---|
| 315/70R17 | +1.75" (+5.37%) | +0.39" | +0.87" | 56.9 mph |
| 265/70R17 | -1.00" (-3.07%) | -1.58" | -0.51" | 61.9 mph |
| 285/75R17 | +1.22" (+3.74%) | -0.79" | +0.61" | 57.8 mph |
| 295/70R17 | +0.65" (+1.99%) | -0.40" | +0.32" | 58.8 mph |
| 305/70R17 | +1.20" (+3.68%) | 0.00" | +0.60" | 57.9 mph |
How the 305/65R17 numbers are worked out
The size code reads as 305 mm section width, 65% aspect ratio, R for radial construction and 17-inch wheel.
- Sidewall = 305 × 65% = 198.2 mm = 7.81"
- Diameter = 17" + 2 × 7.81" = 32.61"
- Circumference = π × 32.61" = 102.5"
- Revs per mile = 63,360" ÷ 102.5" = 619
Sizes that can replace 305/65R17 on a 17" wheel
Within 3% of 32.61". Last column: speedometer reading at a true 60 mph.
| Size | Diameter | Width | Difference | Speedo at true 60 mph |
|---|---|---|---|---|
| 265/75R17 | 32.65" | 10.43" | +0.12% | 59.9 mph |
| 285/70R17 | 32.71" | 11.22" | +0.31% | 59.8 mph |
| 235/85R17 | 32.73" | 9.25" | +0.37% | 59.8 mph |
| 280/70R17 | 32.43" | 11.02" | -0.55% | 60.3 mph |
| 245/80R17 | 32.43" | 9.65" | -0.55% | 60.3 mph |
| 270/75R17 | 32.94" | 10.63" | +1.01% | 59.4 mph |
| 290/70R17 | 32.98" | 11.42" | +1.13% | 59.3 mph |
| 275/70R17 | 32.16" | 10.83" | -1.38% | 60.8 mph |
| 255/80R17 | 33.06" | 10.04" | +1.38% | 59.2 mph |
| 315/65R17 | 33.12" | 12.40" | +1.56% | 59.1 mph |
| 295/65R17 | 32.10" | 11.61" | -1.56% | 61 mph |
| 255/75R17 | 32.06" | 10.04" | -1.69% | 61 mph |
One size wider or narrower
- Narrower: 295/65R17 — 11.61" wide, 32.10" tall
- Wider: 315/65R17 — 12.40" wide, 33.12" tall
Same height on a different wheel size
- 265/85R15 15" (+0.4%)
- 295/75R15 15" (-0.58%)
- 315/70R15 15" (-0.77%)
- 305/75R15 15" (+1.23%)
- 255/85R15 15" (-1.66%)
- 280/75R16 16" (-0.21%)
- 265/80R16 16" (+0.25%)
- 305/70R16 16" (+0.61%)
- 245/85R16 16" (-0.64%)
- 285/75R16 16" (+0.67%)
Questions about 305/65R17
How tall is a 305/65R17 tire in inches?
A 305/65R17 tire is 32.61 inches (828 mm) tall: the 17-inch rim plus two sidewalls of 7.81 inches each.
Is 305/65R17 a 33 inch tire?
Yes. At 32.61 inches tall it is commonly called a 33-inch tire.
How many revolutions per mile does a 305/65R17 make?
About 619 revolutions per mile, based on a calculated circumference of 102.5 inches.
What size can replace 305/65R17?
265/75R17 is the closest match on a 17" rim (+0.12% height). Check load index, speed rating and clearance first.
Compare 305/65R17 against any other size with the tire size calculator.