Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/60-18 | 235/65-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.57 (751.2) | 30.03 (762.7) | 0.45 (11.5) 1.5% |
| Width inches (mm) | 9.65 (245) | 9.25 (235) | -0.39 (-10) -4.1% |
| Circum. inches (mm) | 92.91 (2359.96) | 94.33 (2396.09) | 1.42 (36.13) 1.5% |
| Sidewall Height inches (mm) | 5.79 (147) | 6.01 (152.75) | 0.23 (5.75) 3.9% |
| Revolutions per mile (km) | 681.94 (423.73) | 671.65 (417.35) | -10.28 (-6.39) -1.5% |
235/65-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.31 mph (32.68 km/h) |
| 25 mph (40.23 km/h) | 25.38 mph (40.85 km/h) |
| 30 mph (48.28 km/h) | 30.46 mph (49.02 km/h) |
| 35 mph (56.33 km/h) | 35.54 mph (57.19 km/h) |
| 40 mph (64.37 km/h) | 40.61 mph (65.36 km/h) |
| 45 mph (72.42 km/h) | 45.69 mph (73.53 km/h) |
| 50 mph (80.47 km/h) | 50.77 mph (81.7 km/h) |
| 55 mph (88.51 km/h) | 55.84 mph (89.87 km/h) |
| 60 mph (96.56 km/h) | 60.92 mph (98.04 km/h) |
| 65 mph (104.61 km/h) | 66 mph (106.21 km/h) |
| 70 mph (112.65 km/h) | 71.07 mph (114.38 km/h) |
| 75 mph (120.7 km/h) | 76.15 mph (122.55 km/h) |
| 80 mph (128.75 km/h) | 81.22 mph (130.72 km/h) |
| 85 mph (136.79 km/h) | 86.3 mph (138.89 km/h) |
| 90 mph (144.84 km/h) | 91.38 mph (147.06 km/h) |
| 95 mph (152.89 km/h) | 96.45 mph (155.23 km/h) |
| 100 mph (160.93 km/h) | 101.53 mph (163.4 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1709 | 1986 | 2138 | 2233 | 2335 | 2407 | 2487 | 2582 | 2713 | 2844 | 2989 | 3106 | 3317 | 3549 | 3731 | 3848 | 3913 | 4153 | 4488 | 5215 |
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