Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/45-18 | 265/40-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.39 (695.7) | 26.35 (669.2) | -1.04 (-26.5) -3.8% |
| Width inches (mm) | 10.43 (265) | 10.43 (265) | 0 (0) 0% |
| Circum. inches (mm) | 86.05 (2185.61) | 82.77 (2102.35) | -3.28 (-83.25) -3.8% |
| Sidewall Height inches (mm) | 4.69 (119.25) | 4.17 (106) | -0.52 (-13.25) -11.1% |
| Revolutions per mile (km) | 736.34 (457.54) | 765.5 (475.66) | 29.16 (18.12) 4% |
265/40-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.24 mph (30.96 km/h) |
| 25 mph (40.23 km/h) | 24.05 mph (38.7 km/h) |
| 30 mph (48.28 km/h) | 28.86 mph (46.44 km/h) |
| 35 mph (56.33 km/h) | 33.67 mph (54.18 km/h) |
| 40 mph (64.37 km/h) | 38.48 mph (61.92 km/h) |
| 45 mph (72.42 km/h) | 43.29 mph (69.66 km/h) |
| 50 mph (80.47 km/h) | 48.1 mph (77.4 km/h) |
| 55 mph (88.51 km/h) | 52.9 mph (85.14 km/h) |
| 60 mph (96.56 km/h) | 57.71 mph (92.88 km/h) |
| 65 mph (104.61 km/h) | 62.52 mph (100.62 km/h) |
| 70 mph (112.65 km/h) | 67.33 mph (108.36 km/h) |
| 75 mph (120.7 km/h) | 72.14 mph (116.1 km/h) |
| 80 mph (128.75 km/h) | 76.95 mph (123.84 km/h) |
| 85 mph (136.79 km/h) | 81.76 mph (131.58 km/h) |
| 90 mph (144.84 km/h) | 86.57 mph (139.32 km/h) |
| 95 mph (152.89 km/h) | 91.38 mph (147.06 km/h) |
| 100 mph (160.93 km/h) | 96.19 mph (154.8 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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