Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/60-18 | 245/65-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.57 (751.2) | 30.54 (775.7) | 0.96 (24.5) 3.3% |
| Width inches (mm) | 9.65 (245) | 9.65 (245) | 0 (0) 0% |
| Circum. inches (mm) | 92.91 (2359.96) | 95.94 (2436.93) | 3.03 (76.97) 3.3% |
| Sidewall Height inches (mm) | 5.79 (147) | 6.27 (159.25) | 0.48 (12.25) 8.3% |
| Revolutions per mile (km) | 681.94 (423.73) | 660.4 (410.35) | -21.54 (-13.38) -3.2% |
245/65-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.65 mph (33.24 km/h) |
| 25 mph (40.23 km/h) | 25.82 mph (41.55 km/h) |
| 30 mph (48.28 km/h) | 30.98 mph (49.86 km/h) |
| 35 mph (56.33 km/h) | 36.14 mph (58.16 km/h) |
| 40 mph (64.37 km/h) | 41.3 mph (66.47 km/h) |
| 45 mph (72.42 km/h) | 46.47 mph (74.78 km/h) |
| 50 mph (80.47 km/h) | 51.63 mph (83.09 km/h) |
| 55 mph (88.51 km/h) | 56.79 mph (91.4 km/h) |
| 60 mph (96.56 km/h) | 61.96 mph (99.71 km/h) |
| 65 mph (104.61 km/h) | 67.12 mph (108.02 km/h) |
| 70 mph (112.65 km/h) | 72.28 mph (116.33 km/h) |
| 75 mph (120.7 km/h) | 77.45 mph (124.64 km/h) |
| 80 mph (128.75 km/h) | 82.61 mph (132.95 km/h) |
| 85 mph (136.79 km/h) | 87.77 mph (141.26 km/h) |
| 90 mph (144.84 km/h) | 92.94 mph (149.57 km/h) |
| 95 mph (152.89 km/h) | 98.1 mph (157.87 km/h) |
| 100 mph (160.93 km/h) | 103.26 mph (166.18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1681 | 1952 | 2103 | 2195 | 2296 | 2367 | 2446 | 2539 | 2667 | 2796 | 2939 | 3054 | 3261 | 3490 | 3669 | 3783 | 3847 | 4083 | 4412 | 5128 |
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