Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/35-18 | 265/40-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.3 (642.7) | 26.35 (669.2) | 1.04 (26.5) 4.1% |
| Width inches (mm) | 10.43 (265) | 10.43 (265) | 0 (0) 0% |
| Circum. inches (mm) | 79.49 (2019.1) | 82.77 (2102.35) | 3.28 (83.25) 4.1% |
| Sidewall Height inches (mm) | 3.65 (92.75) | 4.17 (106) | 0.52 (13.25) 14.3% |
| Revolutions per mile (km) | 797.06 (495.27) | 765.5 (475.66) | -31.56 (-19.61) -4% |
265/40-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.82 mph (33.51 km/h) |
| 25 mph (40.23 km/h) | 26.03 mph (41.89 km/h) |
| 30 mph (48.28 km/h) | 31.24 mph (50.27 km/h) |
| 35 mph (56.33 km/h) | 36.44 mph (58.65 km/h) |
| 40 mph (64.37 km/h) | 41.65 mph (67.03 km/h) |
| 45 mph (72.42 km/h) | 46.86 mph (75.41 km/h) |
| 50 mph (80.47 km/h) | 52.06 mph (83.79 km/h) |
| 55 mph (88.51 km/h) | 57.27 mph (92.16 km/h) |
| 60 mph (96.56 km/h) | 62.47 mph (100.54 km/h) |
| 65 mph (104.61 km/h) | 67.68 mph (108.92 km/h) |
| 70 mph (112.65 km/h) | 72.89 mph (117.3 km/h) |
| 75 mph (120.7 km/h) | 78.09 mph (125.68 km/h) |
| 80 mph (128.75 km/h) | 83.3 mph (134.06 km/h) |
| 85 mph (136.79 km/h) | 88.5 mph (142.43 km/h) |
| 90 mph (144.84 km/h) | 93.71 mph (150.81 km/h) |
| 95 mph (152.89 km/h) | 98.92 mph (159.19 km/h) |
| 100 mph (160.93 km/h) | 104.12 mph (167.57 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1948 | 2263 | 2437 | 2545 | 2661 | 2744 | 2835 | 2943 | 3092 | 3241 | 3407 | 3540 | 3780 | 4045 | 4253 | 4385 | 4460 | 4733 | 5115 | 5944 |
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