255/60R15 tire size
255/60R15 is a metric size: 27.0" tall, 10.0" wide, on a 15" rim — about a 27x10.00R15. The sidewall is 6.0" and the tire turns 746 times per mile.
255/60R15 specs
| Overall diameter (height) | 27.05" · 687 mm |
|---|---|
| Section width | 10.04" · 255 mm |
| Sidewall height | 6.02" · 153 mm (60% of width) |
| Rim diameter | 15" |
| Circumference | 84.97" · 2.158 m |
| Revolutions per mile | 746 (463 per km) |
| Inch (flotation) equivalent | 27x10.00R15 |
Equivalent sizes on a 15" 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 | |
|---|---|---|---|---|---|
| 215/70R15 | 26.85" | -0.73% | -40 mm | 59.6 mph | calculate → |
| 205/70R15 | 26.30" | -2.77% | -50 mm | 58.3 mph | calculate → |
| 225/70R15 | 27.40" | +1.31% | -30 mm | 60.8 mph | calculate → |
| 215/75R15 | 27.70" | +2.40% | -40 mm | 61.4 mph | calculate → |
| 225/75R15 | 28.29" | +4.59% | -30 mm | 62.8 mph | calculate → |
| 215/65R15 | 26.00" | -3.86% | -40 mm | 57.7 mph | calculate → |
| 205/75R15 | 27.11" | +0.22% | -50 mm | 60.1 mph | calculate → |
| 235/70R15 | 27.95" | +3.35% | -20 mm | 62.0 mph | calculate → |
| 275/60R15 | 27.99" | +3.49% | +20 mm | 62.1 mph | calculate → |
| 235/60R15 | 26.10" | -3.49% | -20 mm | 57.9 mph | calculate → |
| 275/50R15 | 25.83" | -4.51% | +20 mm | 57.3 mph | calculate → |
| 195/70R15 | 25.75" | -4.80% | -60 mm | 57.1 mph | calculate → |
| 295/50R15 | 26.61" | -1.60% | +40 mm | 59.0 mph | calculate → |
| 245/60R15 | 26.57" | -1.75% | -10 mm | 59.0 mph | calculate → |
| 325/50R15 | 27.80" | +2.77% | +70 mm | 61.7 mph | calculate → |
| 26x10.00R15 | 26.00" | -3.87% | -1 mm | 57.7 mph | calculate → |
| 295/55R15 | 27.78" | +2.69% | +40 mm | 61.6 mph | calculate → |
| 28x10.50R15 | 28.00" | +3.52% | +12 mm | 62.1 mph | calculate → |
| 28x11.50R15 | 28.00" | +3.52% | +37 mm | 62.1 mph | calculate → |
| 28x9.00R15 | 28.00" | +3.52% | -26 mm | 62.1 mph | calculate → |
| 26x8.50R15 | 26.00" | -3.87% | -39 mm | 57.7 mph | calculate → |
| 27x9.50R15 | 27.00" | -0.17% | -14 mm | 59.9 mph | calculate → |
| 28x10.00R15 | 28.00" | +3.52% | -1 mm | 62.1 mph | calculate → |
| 28x12.00R15 | 28.00" | +3.52% | +50 mm | 62.1 mph | calculate → |
| 28x6.00R15 | 28.00" | +3.52% | -103 mm | 62.1 mph | calculate → |
| 28x7.50R15 | 28.00" | +3.52% | -64 mm | 62.1 mph | calculate → |
| 26x10.50R15 | 26.00" | -3.87% | +12 mm | 57.7 mph | calculate → |
| 26x12.00R15 | 26.00" | -3.87% | +50 mm | 57.7 mph | calculate → |
| 26x6.00R15 | 26.00" | -3.87% | -103 mm | 57.7 mph | calculate → |
| 26x7.50R15 | 26.00" | -3.87% | -64 mm | 57.7 mph | calculate → |
| 26x8.00R15 | 26.00" | -3.87% | -52 mm | 57.7 mph | calculate → |
| 235/65R15 | 27.03" | -0.07% | -20 mm | 60.0 mph | calculate → |
| 27x10.50R15 | 27.00" | -0.17% | +12 mm | 59.9 mph | calculate → |
| 185R15 | 26.94" | -0.38% | -70 mm | 59.8 mph | calculate → |
| 28x12.50R15 | 28.00" | +3.52% | +63 mm | 62.1 mph | calculate → |
| 28x13.50R15 | 28.00" | +3.52% | +88 mm | 62.1 mph | calculate → |
| 255/65R15 | 28.05" | +3.71% | 0 mm | 62.2 mph | calculate → |
| 26x11.50R15 | 26.00" | -3.87% | +37 mm | 57.7 mph | calculate → |
Plus / minus sizing: 14" and 16" rims
Same overall height on a different rim. Check wheel width and clearance before switching.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 215/65R16 common | 27.00" | -0.16% | -40 mm | 59.9 mph | calculate → |
| 235/60R16 common | 27.10" | +0.20% | -20 mm | 60.1 mph | calculate → |
| 205/70R16 | 27.30" | +0.93% | -50 mm | 60.6 mph | calculate → |
| 155/90R16 | 26.98" | -0.23% | -100 mm | 59.9 mph | calculate → |
| 27x11.00R14 | 27.00" | -0.17% | +24 mm | 59.9 mph | calculate → |
| 27x8.50R14 | 27.00" | -0.17% | -39 mm | 59.9 mph | calculate → |
| 27x9.50R14 | 27.00" | -0.17% | -14 mm | 59.9 mph | calculate → |
| 27x9.00R14 | 27.00" | -0.17% | -26 mm | 59.9 mph | calculate → |
| 355/40R16 | 27.18" | +0.49% | +100 mm | 60.3 mph | calculate → |
| 205R14 | 27.24" | +0.70% | -50 mm | 60.4 mph | calculate → |
Try another size against 255/60R15
Questions
What size is 255/60R15 in inches?
255/60R15 is about 27.0" tall and 10.0" wide on a 15-inch rim — roughly a 27x10.00R15 in inch sizing.
What does 255/60R15 mean?
255 mm section width, sidewall 60% of the width (6.02"), radial construction, 15-inch rim.
What tire sizes are equivalent to 255/60R15?
On the same 15" rim, within 3% of the diameter: 235/65R15 (-0.07%), 27x10.50R15 (-0.17%), 27x9.50R15 (-0.17%), 205/75R15 (+0.22%), 185R15 (-0.38%), 215/70R15 (-0.73%).
How many revolutions per mile does a 255/60R15 tire make?
About 746 revolutions per mile (circumference 85.0").
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.