205/75R15 tire size
205/75R15 is a metric size: 27.1" tall, 8.1" wide, on a 15" rim — about a 27x8.00R15. The sidewall is 6.1" and the tire turns 744 times per mile.
205/75R15 specs
| Overall diameter (height) | 27.11" · 689 mm |
|---|---|
| Section width | 8.07" · 205 mm |
| Sidewall height | 6.05" · 154 mm (75% of width) |
| Rim diameter | 15" |
| Circumference | 85.16" · 2.163 m |
| Revolutions per mile | 744 (462 per km) |
| Inch (flotation) equivalent | 27x8.00R15 |
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" | -0.94% | +10 mm | 59.4 mph | compare → |
| 205/70R15 | 26.30" | -2.98% | 0 mm | 58.2 mph | compare → |
| 225/70R15 | 27.40" | +1.09% | +20 mm | 60.7 mph | compare → |
| 215/75R15 | 27.70" | +2.18% | +10 mm | 61.3 mph | compare → |
| 225/75R15 | 28.29" | +4.36% | +20 mm | 62.6 mph | compare → |
| 215/65R15 | 26.00" | -4.07% | +10 mm | 57.6 mph | compare → |
| 235/70R15 | 27.95" | +3.12% | +30 mm | 61.9 mph | compare → |
| 275/60R15 | 27.99" | +3.27% | +70 mm | 62.0 mph | calculate → |
| 255/60R15 | 27.05" | -0.22% | +50 mm | 59.9 mph | calculate → |
| 235/60R15 | 26.10" | -3.70% | +30 mm | 57.8 mph | calculate → |
| 275/50R15 | 25.83" | -4.72% | +70 mm | 57.2 mph | calculate → |
| 295/50R15 | 26.61" | -1.82% | +90 mm | 58.9 mph | calculate → |
| 245/60R15 | 26.57" | -1.96% | +40 mm | 58.8 mph | calculate → |
| 325/50R15 | 27.80" | +2.54% | +120 mm | 61.5 mph | calculate → |
| 26x10.00R15 | 26.00" | -4.08% | +49 mm | 57.6 mph | calculate → |
| 295/55R15 | 27.78" | +2.47% | +90 mm | 61.5 mph | calculate → |
| 28x10.50R15 | 28.00" | +3.30% | +62 mm | 62.0 mph | calculate → |
| 28x11.50R15 | 28.00" | +3.30% | +87 mm | 62.0 mph | calculate → |
| 28x9.00R15 | 28.00" | +3.30% | +24 mm | 62.0 mph | calculate → |
| 26x8.50R15 | 26.00" | -4.08% | +11 mm | 57.6 mph | calculate → |
| 27x9.50R15 | 27.00" | -0.39% | +36 mm | 59.8 mph | calculate → |
| 28x10.00R15 | 28.00" | +3.30% | +49 mm | 62.0 mph | calculate → |
| 28x12.00R15 | 28.00" | +3.30% | +100 mm | 62.0 mph | calculate → |
| 28x6.00R15 | 28.00" | +3.30% | -53 mm | 62.0 mph | calculate → |
| 28x7.50R15 | 28.00" | +3.30% | -14 mm | 62.0 mph | calculate → |
| 26x10.50R15 | 26.00" | -4.08% | +62 mm | 57.6 mph | calculate → |
| 26x12.00R15 | 26.00" | -4.08% | +100 mm | 57.6 mph | calculate → |
| 26x6.00R15 | 26.00" | -4.08% | -53 mm | 57.6 mph | calculate → |
| 26x7.50R15 | 26.00" | -4.08% | -14 mm | 57.6 mph | calculate → |
| 26x8.00R15 | 26.00" | -4.08% | -2 mm | 57.6 mph | calculate → |
| 235/65R15 | 27.03" | -0.29% | +30 mm | 59.8 mph | calculate → |
| 27x10.50R15 | 27.00" | -0.39% | +62 mm | 59.8 mph | calculate → |
| 185R15 | 26.94" | -0.60% | -20 mm | 59.6 mph | calculate → |
| 28x12.50R15 | 28.00" | +3.30% | +113 mm | 62.0 mph | calculate → |
| 28x13.50R15 | 28.00" | +3.30% | +138 mm | 62.0 mph | calculate → |
| 255/65R15 | 28.05" | +3.49% | +50 mm | 62.1 mph | calculate → |
| 26x11.50R15 | 26.00" | -4.08% | +87 mm | 57.6 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" | -0.38% | +10 mm | 59.8 mph | compare → |
| 235/60R16 common | 27.10" | -0.01% | +30 mm | 60.0 mph | compare → |
| 205/70R16 | 27.30" | +0.71% | 0 mm | 60.4 mph | compare → |
| 155/90R16 | 26.98" | -0.45% | -50 mm | 59.7 mph | calculate → |
| 27x11.00R14 | 27.00" | -0.39% | +74 mm | 59.8 mph | calculate → |
| 27x8.50R14 | 27.00" | -0.39% | +11 mm | 59.8 mph | calculate → |
| 27x9.50R14 | 27.00" | -0.39% | +36 mm | 59.8 mph | calculate → |
| 27x9.00R14 | 27.00" | -0.39% | +24 mm | 59.8 mph | calculate → |
| 355/40R16 | 27.18" | +0.28% | +150 mm | 60.2 mph | calculate → |
| 205R14 | 27.24" | +0.48% | 0 mm | 60.3 mph | calculate → |
Try another size against 205/75R15
Questions
What size is 205/75R15 in inches?
205/75R15 is about 27.1" tall and 8.1" wide on a 15-inch rim — roughly a 27x8.00R15 in inch sizing.
What does 205/75R15 mean?
205 mm section width, sidewall 75% of the width (6.05"), radial construction, 15-inch rim.
What tire sizes are equivalent to 205/75R15?
On the same 15" rim, within 3% of the diameter: 255/60R15 (-0.22%), 235/65R15 (-0.29%), 27x10.50R15 (-0.39%), 27x9.50R15 (-0.39%), 185R15 (-0.60%), 215/70R15 (-0.94%).
How many revolutions per mile does a 205/75R15 tire make?
About 744 revolutions per mile (circumference 85.2").
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.