Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/80-15 | 145/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.13 (613) | 22.42 (569.5) | -1.71 (-43.5) -7.1% |
| Width inches (mm) | 5.71 (145) | 5.71 (145) | 0 (0) 0% |
| Circum. inches (mm) | 75.82 (1925.8) | 70.44 (1789.14) | -5.38 (-136.66) -7.1% |
| Sidewall Height inches (mm) | 4.57 (116) | 3.71 (94.25) | -0.86 (-21.75) -18.8% |
| Revolutions per mile (km) | 835.68 (519.26) | 899.51 (558.93) | 63.83 (39.66) 7.6% |
145/65-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.58 mph (29.9 km/h) |
| 25 mph (40.23 km/h) | 23.23 mph (37.38 km/h) |
| 30 mph (48.28 km/h) | 27.87 mph (44.85 km/h) |
| 35 mph (56.33 km/h) | 32.52 mph (52.33 km/h) |
| 40 mph (64.37 km/h) | 37.16 mph (59.81 km/h) |
| 45 mph (72.42 km/h) | 41.81 mph (67.28 km/h) |
| 50 mph (80.47 km/h) | 46.45 mph (74.76 km/h) |
| 55 mph (88.51 km/h) | 51.1 mph (82.23 km/h) |
| 60 mph (96.56 km/h) | 55.74 mph (89.71 km/h) |
| 65 mph (104.61 km/h) | 60.39 mph (97.18 km/h) |
| 70 mph (112.65 km/h) | 65.03 mph (104.66 km/h) |
| 75 mph (120.7 km/h) | 69.68 mph (112.14 km/h) |
| 80 mph (128.75 km/h) | 74.32 mph (119.61 km/h) |
| 85 mph (136.79 km/h) | 78.97 mph (127.09 km/h) |
| 90 mph (144.84 km/h) | 83.61 mph (134.56 km/h) |
| 95 mph (152.89 km/h) | 88.26 mph (142.04 km/h) |
| 100 mph (160.93 km/h) | 92.9 mph (149.51 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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