Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/80-15 | 145/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.39 (645) | 22.42 (569.5) | -2.97 (-75.5) -11.7% |
| Width inches (mm) | 6.5 (165) | 5.71 (145) | -0.79 (-20) -12.1% |
| Circum. inches (mm) | 79.78 (2026.33) | 70.44 (1789.14) | -9.34 (-237.19) -11.7% |
| Sidewall Height inches (mm) | 5.2 (132) | 3.71 (94.25) | -1.49 (-37.75) -28.6% |
| Revolutions per mile (km) | 794.22 (493.5) | 899.51 (558.93) | 105.29 (65.42) 13.3% |
145/65-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.66 mph (28.42 km/h) |
| 25 mph (40.23 km/h) | 22.07 mph (35.52 km/h) |
| 30 mph (48.28 km/h) | 26.49 mph (42.63 km/h) |
| 35 mph (56.33 km/h) | 30.9 mph (49.73 km/h) |
| 40 mph (64.37 km/h) | 35.32 mph (56.84 km/h) |
| 45 mph (72.42 km/h) | 39.73 mph (63.94 km/h) |
| 50 mph (80.47 km/h) | 44.15 mph (71.05 km/h) |
| 55 mph (88.51 km/h) | 48.56 mph (78.15 km/h) |
| 60 mph (96.56 km/h) | 52.98 mph (85.26 km/h) |
| 65 mph (104.61 km/h) | 57.39 mph (92.36 km/h) |
| 70 mph (112.65 km/h) | 61.81 mph (99.47 km/h) |
| 75 mph (120.7 km/h) | 66.22 mph (106.57 km/h) |
| 80 mph (128.75 km/h) | 70.64 mph (113.68 km/h) |
| 85 mph (136.79 km/h) | 75.05 mph (120.78 km/h) |
| 90 mph (144.84 km/h) | 79.47 mph (127.89 km/h) |
| 95 mph (152.89 km/h) | 83.88 mph (134.99 km/h) |
| 100 mph (160.93 km/h) | 88.29 mph (142.1 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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