Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/70-18 | 255/65-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.61 (828.2) | 31.05 (788.7) | -1.56 (-39.5) -4.8% |
| Width inches (mm) | 10.43 (265) | 10.04 (255) | -0.39 (-10) -3.8% |
| Circum. inches (mm) | 102.44 (2601.87) | 97.55 (2477.77) | -4.89 (-124.09) -4.8% |
| Sidewall Height inches (mm) | 7.3 (185.5) | 6.53 (165.75) | -0.78 (-19.75) -10.6% |
| Revolutions per mile (km) | 618.53 (384.34) | 649.51 (403.59) | 30.98 (19.25) 5% |
255/65-18 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 (38.31 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 (61.3 km/h) |
| 45 mph (72.42 km/h) | 42.85 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 (84.29 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 (107.28 km/h) |
| 75 mph (120.7 km/h) | 71.42 mph (114.94 km/h) |
| 80 mph (128.75 km/h) | 76.18 mph (122.61 km/h) |
| 85 mph (136.79 km/h) | 80.95 mph (130.27 km/h) |
| 90 mph (144.84 km/h) | 85.71 mph (137.93 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1653 | 1920 | 2068 | 2159 | 2258 | 2328 | 2405 | 2497 | 2624 | 2750 | 2891 | 3003 | 3207 | 3432 | 3608 | 3721 | 3784 | 4016 | 4340 | 5043 |
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