Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/60-18 | 265/65-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.57 (751.2) | 31.56 (801.7) | 1.99 (50.5) 6.7% |
| Width inches (mm) | 9.65 (245) | 10.43 (265) | 0.79 (20) 8.2% |
| Circum. inches (mm) | 92.91 (2359.96) | 99.16 (2518.61) | 6.25 (158.65) 6.7% |
| Sidewall Height inches (mm) | 5.79 (147) | 6.78 (172.25) | 0.99 (25.25) 17.2% |
| Revolutions per mile (km) | 681.94 (423.73) | 638.98 (397.04) | -42.96 (-26.69) -6.3% |
265/65-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.34 mph (34.35 km/h) |
| 25 mph (40.23 km/h) | 26.68 mph (42.94 km/h) |
| 30 mph (48.28 km/h) | 32.02 mph (51.53 km/h) |
| 35 mph (56.33 km/h) | 37.35 mph (60.11 km/h) |
| 40 mph (64.37 km/h) | 42.69 mph (68.7 km/h) |
| 45 mph (72.42 km/h) | 48.03 mph (77.29 km/h) |
| 50 mph (80.47 km/h) | 53.36 mph (85.88 km/h) |
| 55 mph (88.51 km/h) | 58.7 mph (94.46 km/h) |
| 60 mph (96.56 km/h) | 64.03 mph (103.05 km/h) |
| 65 mph (104.61 km/h) | 69.37 mph (111.64 km/h) |
| 70 mph (112.65 km/h) | 74.71 mph (120.23 km/h) |
| 75 mph (120.7 km/h) | 80.04 mph (128.82 km/h) |
| 80 mph (128.75 km/h) | 85.38 mph (137.4 km/h) |
| 85 mph (136.79 km/h) | 90.71 mph (145.99 km/h) |
| 90 mph (144.84 km/h) | 96.05 mph (154.58 km/h) |
| 95 mph (152.89 km/h) | 101.39 mph (163.17 km/h) |
| 100 mph (160.93 km/h) | 106.72 mph (171.75 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1626 | 1889 | 2034 | 2124 | 2221 | 2290 | 2366 | 2456 | 2581 | 2706 | 2844 | 2955 | 3155 | 3377 | 3550 | 3660 | 3723 | 3951 | 4269 | 4961 |
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