Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/60-15 | 145/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.85 (555) | 22.42 (569.5) | 0.57 (14.5) 2.6% |
| Width inches (mm) | 5.71 (145) | 5.71 (145) | 0 (0) 0% |
| Circum. inches (mm) | 68.65 (1743.58) | 70.44 (1789.14) | 1.79 (45.55) 2.6% |
| Sidewall Height inches (mm) | 3.43 (87) | 3.71 (94.25) | 0.29 (7.25) 8.3% |
| Revolutions per mile (km) | 923.01 (573.53) | 899.51 (558.93) | -23.5 (-14.6) -2.5% |
145/65-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.52 mph (33.03 km/h) |
| 25 mph (40.23 km/h) | 25.65 mph (41.28 km/h) |
| 30 mph (48.28 km/h) | 30.78 mph (49.54 km/h) |
| 35 mph (56.33 km/h) | 35.91 mph (57.8 km/h) |
| 40 mph (64.37 km/h) | 41.05 mph (66.06 km/h) |
| 45 mph (72.42 km/h) | 46.18 mph (74.31 km/h) |
| 50 mph (80.47 km/h) | 51.31 mph (82.57 km/h) |
| 55 mph (88.51 km/h) | 56.44 mph (90.83 km/h) |
| 60 mph (96.56 km/h) | 61.57 mph (99.08 km/h) |
| 65 mph (104.61 km/h) | 66.7 mph (107.34 km/h) |
| 70 mph (112.65 km/h) | 71.83 mph (115.6 km/h) |
| 75 mph (120.7 km/h) | 76.96 mph (123.85 km/h) |
| 80 mph (128.75 km/h) | 82.09 mph (132.11 km/h) |
| 85 mph (136.79 km/h) | 87.22 mph (140.37 km/h) |
| 90 mph (144.84 km/h) | 92.35 mph (148.63 km/h) |
| 95 mph (152.89 km/h) | 97.48 mph (156.88 km/h) |
| 100 mph (160.93 km/h) | 102.61 mph (165.14 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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