Home › 20" tire sizes › 325/60R20
325/60R20 tire size in inches
325/60R20 is 35.35" tall and 12.80" wide, and fits a 20" rim. In flotation (inch) sizing that is roughly 35.4x12.8R20.
325/60R20 dimensions
| Measurement | Inches | Metric |
|---|---|---|
| Overall diameter (height) | 35.35" | 898 mm |
| Section width | 12.80" | 325 mm |
| Sidewall height | 7.68" | 195.0 mm |
| Rim diameter | 20" | 508.0 mm |
| Circumference | 111.1" | 2821 mm |
| Revolutions per mile | 571 | |
| Aspect ratio | 60% (sidewall is 60% of the width) | |
Drawn to scale
Among the 131 sizes for 20" wheels on this site, 325/60R20 is #98 by height (shortest: 225/30R20, tallest: 365/85R20).
325/60R20 against the most popular 20" sizes
| Popular size | Height | Width | Sidewall | Speedo at true 60 |
|---|---|---|---|---|
| 275/60R20 | -2.36" (-6.68%) | -1.97" | -1.18" | 64.3 mph |
| 275/65R20 | -1.28" (-3.62%) | -1.97" | -0.64" | 62.3 mph |
| 275/55R20 | -3.44" (-9.73%) | -1.97" | -1.73" | 66.5 mph |
| 305/55R20 | -2.14" (-6.05%) | -0.79" | -1.08" | 63.9 mph |
| 295/65R20 | -0.25" (-0.71%) | -1.19" | -0.13" | 60.4 mph |
How the 325/60R20 numbers are worked out
The size code reads as 325 mm section width, 60% aspect ratio, R for radial construction and 20-inch wheel.
- Sidewall = 325 × 60% = 195.0 mm = 7.68"
- Diameter = 20" + 2 × 7.68" = 35.35"
- Circumference = π × 35.35" = 111.1"
- Revs per mile = 63,360" ÷ 111.1" = 571
Sizes that can replace 325/60R20 on a 20" wheel
Within 3% of 35.35". Last column: speedometer reading at a true 60 mph.
| Size | Diameter | Width | Difference | Speedo at true 60 mph |
|---|---|---|---|---|
| 355/55R20 | 35.37" | 13.98" | +0.06% | 60 mph |
| 280/70R20 | 35.43" | 11.02" | +0.23% | 59.9 mph |
| 275/70R20 | 35.16" | 10.83" | -0.54% | 60.3 mph |
| 320/60R20 | 35.12" | 12.60" | -0.65% | 60.4 mph |
| 295/65R20 | 35.10" | 11.61" | -0.71% | 60.4 mph |
| 305/65R20 | 35.61" | 12.01" | +0.74% | 59.6 mph |
| 255/75R20 | 35.06" | 10.04" | -0.82% | 60.5 mph |
| 265/75R20 | 35.65" | 10.43" | +0.85% | 59.5 mph |
| 285/70R20 | 35.71" | 11.22" | +1.02% | 59.4 mph |
| 345/55R20 | 34.94" | 13.58" | -1.16% | 60.7 mph |
| 315/60R20 | 34.88" | 12.40" | -1.33% | 60.8 mph |
| 335/60R20 | 35.83" | 13.19" | +1.36% | 59.2 mph |
One size wider or narrower
- Narrower: 315/60R20 — 12.40" wide, 34.88" tall
- Wider: 335/60R20 — 13.19" wide, 35.83" tall
Same height on a different wheel size
- 305/80R16 16" (-0.4%)
- 325/75R16 16" (-0.45%)
- 375/65R16 16" (-0.45%)
- 285/85R16 16" (-0.79%)
- 295/85R16 16" (+1.1%)
- 335/75R16 16" (+1.22%)
- 315/80R16 16" (+1.39%)
- 275/85R17 17" (+0.17%)
- 335/70R17 17" (+0.31%)
- 295/80R17 17" (+0.65%)
Questions about 325/60R20
How tall is a 325/60R20 tire in inches?
A 325/60R20 tire is 35.35 inches (898 mm) tall: the 20-inch rim plus two sidewalls of 7.68 inches each.
Is 325/60R20 a 35 inch tire?
Yes. At 35.35 inches tall it is commonly called a 35-inch tire.
How many revolutions per mile does a 325/60R20 make?
About 571 revolutions per mile, based on a calculated circumference of 111.1 inches.
What size can replace 325/60R20?
355/55R20 is the closest match on a 20" rim (+0.06% height). Check load index, speed rating and clearance first.
Compare 325/60R20 against any other size with the tire size calculator.