Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/40-18 | 275/40-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.29 (693.2) | 26.66 (677.2) | -0.63 (-16) -2.3% |
| Width inches (mm) | 11.61 (295) | 10.83 (275) | -0.79 (-20) -6.8% |
| Circum. inches (mm) | 85.74 (2177.75) | 83.76 (2127.49) | -1.98 (-50.27) -2.3% |
| Sidewall Height inches (mm) | 4.65 (118) | 4.33 (110) | -0.31 (-8) -6.8% |
| Revolutions per mile (km) | 738.99 (459.19) | 756.45 (470.04) | 17.46 (10.85) 2.4% |
275/40-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.54 mph (31.44 km/h) |
| 25 mph (40.23 km/h) | 24.42 mph (39.31 km/h) |
| 30 mph (48.28 km/h) | 29.31 mph (47.17 km/h) |
| 35 mph (56.33 km/h) | 34.19 mph (55.03 km/h) |
| 40 mph (64.37 km/h) | 39.08 mph (62.89 km/h) |
| 45 mph (72.42 km/h) | 43.96 mph (70.75 km/h) |
| 50 mph (80.47 km/h) | 48.85 mph (78.61 km/h) |
| 55 mph (88.51 km/h) | 53.73 mph (86.47 km/h) |
| 60 mph (96.56 km/h) | 58.62 mph (94.33 km/h) |
| 65 mph (104.61 km/h) | 63.5 mph (102.19 km/h) |
| 70 mph (112.65 km/h) | 68.38 mph (110.05 km/h) |
| 75 mph (120.7 km/h) | 73.27 mph (117.92 km/h) |
| 80 mph (128.75 km/h) | 78.15 mph (125.78 km/h) |
| 85 mph (136.79 km/h) | 83.04 mph (133.64 km/h) |
| 90 mph (144.84 km/h) | 87.92 mph (141.5 km/h) |
| 95 mph (152.89 km/h) | 92.81 mph (149.36 km/h) |
| 100 mph (160.93 km/h) | 97.69 mph (157.22 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1925 | 2236 | 2408 | 2515 | 2630 | 2711 | 2802 | 2908 | 3055 | 3203 | 3367 | 3498 | 3735 | 3998 | 4202 | 4333 | 4407 | 4677 | 5054 | 5873 |
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