Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/70-15 | 145/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.54 (598) | 22.42 (569.5) | -1.12 (-28.5) -4.8% |
| Width inches (mm) | 6.1 (155) | 5.71 (145) | -0.39 (-10) -6.5% |
| Circum. inches (mm) | 73.96 (1878.67) | 70.44 (1789.14) | -3.53 (-89.54) -4.8% |
| Sidewall Height inches (mm) | 4.27 (108.5) | 3.71 (94.25) | -0.56 (-14.25) -13.1% |
| Revolutions per mile (km) | 856.64 (532.29) | 899.51 (558.93) | 42.87 (26.64) 5% |
145/65-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.05 mph (30.65 km/h) |
| 25 mph (40.23 km/h) | 23.81 mph (38.32 km/h) |
| 30 mph (48.28 km/h) | 28.57 mph (45.98 km/h) |
| 35 mph (56.33 km/h) | 33.33 mph (53.64 km/h) |
| 40 mph (64.37 km/h) | 38.09 mph (61.31 km/h) |
| 45 mph (72.42 km/h) | 42.86 mph (68.97 km/h) |
| 50 mph (80.47 km/h) | 47.62 mph (76.63 km/h) |
| 55 mph (88.51 km/h) | 52.38 mph (84.3 km/h) |
| 60 mph (96.56 km/h) | 57.14 mph (91.96 km/h) |
| 65 mph (104.61 km/h) | 61.9 mph (99.62 km/h) |
| 70 mph (112.65 km/h) | 66.66 mph (107.29 km/h) |
| 75 mph (120.7 km/h) | 71.43 mph (114.95 km/h) |
| 80 mph (128.75 km/h) | 76.19 mph (122.61 km/h) |
| 85 mph (136.79 km/h) | 80.95 mph (130.28 km/h) |
| 90 mph (144.84 km/h) | 85.71 mph (137.94 km/h) |
| 95 mph (152.89 km/h) | 90.47 mph (145.6 km/h) |
| 100 mph (160.93 km/h) | 95.23 mph (153.26 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2289 | 2659 | 2864 | 2990 | 3127 | 3224 | 3331 | 3458 | 3633 | 3809 | 4003 | 4159 | 4442 | 4753 | 4997 | 5153 | 5241 | 5562 | 6010 | 6984 |
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