395/60R20 tire size
395/60R20 is a metric size: 38.7" tall, 15.6" wide, on a 20" rim — about a 38.5x15.50R20. The sidewall is 9.3" and the tire turns 522 times per mile.
395/60R20 specs
| Overall diameter (height) | 38.66" · 982 mm |
|---|---|
| Section width | 15.55" · 395 mm |
| Sidewall height | 9.33" · 237 mm (60% of width) |
| Rim diameter | 20" |
| Circumference | 121.46" · 3.085 m |
| Revolutions per mile | 522 (324 per km) |
| Inch (flotation) equivalent | 38.5x15.50R20 |
Equivalent sizes on a 20" rim
Sizes within ±5% of the overall diameter. Green rows are inside the usual ±3% limit for keeping the speedometer, ABS and gearing right; red rows are bigger changes that need clearance checks.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 37x12.50R20 | 37.00" | -4.30% | -77 mm | 57.4 mph | calculate → |
| 37x13.50R20 | 37.00" | -4.30% | -52 mm | 57.4 mph | calculate → |
| 38x13.50R20 | 38.00" | -1.71% | -52 mm | 59.0 mph | calculate → |
| 38x15.50R20 | 38.00" | -1.71% | -1 mm | 59.0 mph | calculate → |
| 40x15.50R20 | 40.00" | +3.46% | -1 mm | 62.1 mph | calculate → |
| 37x11.50R20 | 37.00" | -4.30% | -103 mm | 57.4 mph | calculate → |
| 40x14.50R20 | 40.00" | +3.46% | -27 mm | 62.1 mph | calculate → |
| 38x14.50R20 | 38.00" | -1.71% | -27 mm | 59.0 mph | calculate → |
| 39.5x13.50R20 | 39.50" | +2.17% | -52 mm | 61.3 mph | calculate → |
| 40x13.50R20 | 40.00" | +3.46% | -52 mm | 62.1 mph | calculate → |
| 38.5x13.50R20 | 38.50" | -0.42% | -52 mm | 59.7 mph | calculate → |
| 38.5x14.50R20 | 38.50" | -0.42% | -27 mm | 59.7 mph | calculate → |
| 38x11.50R20 | 38.00" | -1.71% | -103 mm | 59.0 mph | calculate → |
| 37x14.50R20 | 37.00" | -4.30% | -27 mm | 57.4 mph | calculate → |
| 39x13.50R20 | 39.00" | +0.88% | -52 mm | 60.5 mph | calculate → |
| 39.5x15.00R20 | 39.50" | +2.17% | -14 mm | 61.3 mph | calculate → |
| 355/60R20 | 36.77" | -4.89% | -40 mm | 57.1 mph | calculate → |
Try another size against 395/60R20
Questions
What size is 395/60R20 in inches?
395/60R20 is about 38.7" tall and 15.6" wide on a 20-inch rim — roughly a 38.5x15.50R20 in inch sizing.
What does 395/60R20 mean?
395 mm section width, sidewall 60% of the width (9.33"), radial construction, 20-inch rim.
What tire sizes are equivalent to 395/60R20?
On the same 20" rim, within 3% of the diameter: 38.5x13.50R20 (-0.42%), 38.5x14.50R20 (-0.42%), 39x13.50R20 (+0.88%), 38x11.50R20 (-1.71%), 38x13.50R20 (-1.71%), 38x14.50R20 (-1.71%).
How many revolutions per mile does a 395/60R20 tire make?
About 522 revolutions per mile (circumference 121.5").
How these numbers are computed
Diameter = rim + 2 × sidewall, sidewall = width × aspect ÷ 100, circumference = π × diameter, revolutions per mile = 63,360 ÷ circumference. Real tires differ by brand by a few tenths of an inch. Last reviewed October 14, 2026.