Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/45-18 | 235/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.33 (668.7) | 29.1 (739.2) | 2.78 (70.5) 10.5% |
| Width inches (mm) | 9.25 (235) | 9.25 (235) | 0 (0) 0% |
| Circum. inches (mm) | 82.71 (2100.78) | 91.43 (2322.27) | 8.72 (221.48) 10.5% |
| Sidewall Height inches (mm) | 4.16 (105.75) | 5.55 (141) | 1.39 (35.25) 33.3% |
| Revolutions per mile (km) | 766.07 (476.01) | 693.01 (430.61) | -73.06 (-45.4) -9.5% |
235/60-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.11 mph (35.58 km/h) |
| 25 mph (40.23 km/h) | 27.64 mph (44.48 km/h) |
| 30 mph (48.28 km/h) | 33.16 mph (53.37 km/h) |
| 35 mph (56.33 km/h) | 38.69 mph (62.27 km/h) |
| 40 mph (64.37 km/h) | 44.22 mph (71.16 km/h) |
| 45 mph (72.42 km/h) | 49.74 mph (80.06 km/h) |
| 50 mph (80.47 km/h) | 55.27 mph (88.95 km/h) |
| 55 mph (88.51 km/h) | 60.8 mph (97.85 km/h) |
| 60 mph (96.56 km/h) | 66.33 mph (106.74 km/h) |
| 65 mph (104.61 km/h) | 71.85 mph (115.64 km/h) |
| 70 mph (112.65 km/h) | 77.38 mph (124.53 km/h) |
| 75 mph (120.7 km/h) | 82.91 mph (133.43 km/h) |
| 80 mph (128.75 km/h) | 88.43 mph (142.32 km/h) |
| 85 mph (136.79 km/h) | 93.96 mph (151.22 km/h) |
| 90 mph (144.84 km/h) | 99.49 mph (160.11 km/h) |
| 95 mph (152.89 km/h) | 105.02 mph (169.01 km/h) |
| 100 mph (160.93 km/h) | 110.54 mph (177.9 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1764 | 2049 | 2206 | 2304 | 2409 | 2484 | 2567 | 2664 | 2799 | 2934 | 3084 | 3204 | 3422 | 3662 | 3850 | 3970 | 4037 | 4285 | 4630 | 5381 |
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