Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/80-15 | 175/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.5 (597) | 23.96 (608.5) | 0.45 (11.5) 1.9% |
| Width inches (mm) | 5.31 (135) | 6.89 (175) | 1.57 (40) 29.6% |
| Circum. inches (mm) | 73.84 (1875.53) | 75.26 (1911.66) | 1.42 (36.13) 1.9% |
| Sidewall Height inches (mm) | 4.25 (108) | 4.48 (113.75) | 0.23 (5.75) 5.3% |
| Revolutions per mile (km) | 858.07 (533.18) | 841.86 (523.1) | -16.22 (-10.08) -1.9% |
175/65-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.39 mph (32.81 km/h) |
| 25 mph (40.23 km/h) | 25.48 mph (41.01 km/h) |
| 30 mph (48.28 km/h) | 30.58 mph (49.21 km/h) |
| 35 mph (56.33 km/h) | 35.67 mph (57.41 km/h) |
| 40 mph (64.37 km/h) | 40.77 mph (65.61 km/h) |
| 45 mph (72.42 km/h) | 45.87 mph (73.82 km/h) |
| 50 mph (80.47 km/h) | 50.96 mph (82.02 km/h) |
| 55 mph (88.51 km/h) | 56.06 mph (90.22 km/h) |
| 60 mph (96.56 km/h) | 61.16 mph (98.42 km/h) |
| 65 mph (104.61 km/h) | 66.25 mph (106.62 km/h) |
| 70 mph (112.65 km/h) | 71.35 mph (114.82 km/h) |
| 75 mph (120.7 km/h) | 76.44 mph (123.03 km/h) |
| 80 mph (128.75 km/h) | 81.54 mph (131.23 km/h) |
| 85 mph (136.79 km/h) | 86.64 mph (139.43 km/h) |
| 90 mph (144.84 km/h) | 91.73 mph (147.63 km/h) |
| 95 mph (152.89 km/h) | 96.83 mph (155.83 km/h) |
| 100 mph (160.93 km/h) | 101.93 mph (164.03 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2142 | 2489 | 2680 | 2799 | 2926 | 3018 | 3118 | 3236 | 3400 | 3565 | 3747 | 3893 | 4157 | 4449 | 4677 | 4823 | 4905 | 5205 | 5625 | 6536 |
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