Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 40/12.5-20 | 295/65-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 40.03 (1016.8) | 35.1 (891.5) | -4.93 (-125.3) -12.3% |
| Width inches (mm) | 12.52 (318) | 11.61 (295) | -0.91 (-23) -7.2% |
| Circum. inches (mm) | 125.76 (3194.37) | 110.26 (2800.73) | -15.5 (-393.64) -12.3% |
| Sidewall Height inches (mm) | 10.02 (254.4) | 7.55 (191.75) | -2.47 (-62.65) -24.6% |
| Revolutions per mile (km) | 503.81 (313.05) | 574.62 (357.05) | 70.81 (44) 14.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.54 mph (28.22 km/h) |
| 25 mph (40.23 km/h) | 21.92 mph (35.28 km/h) |
| 30 mph (48.28 km/h) | 26.3 mph (42.33 km/h) |
| 35 mph (56.33 km/h) | 30.69 mph (49.39 km/h) |
| 40 mph (64.37 km/h) | 35.07 mph (56.44 km/h) |
| 45 mph (72.42 km/h) | 39.45 mph (63.5 km/h) |
| 50 mph (80.47 km/h) | 43.84 mph (70.55 km/h) |
| 55 mph (88.51 km/h) | 48.22 mph (77.61 km/h) |
| 60 mph (96.56 km/h) | 52.61 mph (84.66 km/h) |
| 65 mph (104.61 km/h) | 56.99 mph (91.72 km/h) |
| 70 mph (112.65 km/h) | 61.37 mph (98.77 km/h) |
| 75 mph (120.7 km/h) | 65.76 mph (105.83 km/h) |
| 80 mph (128.75 km/h) | 70.14 mph (112.88 km/h) |
| 85 mph (136.79 km/h) | 74.53 mph (119.94 km/h) |
| 90 mph (144.84 km/h) | 78.91 mph (126.99 km/h) |
| 95 mph (152.89 km/h) | 83.29 mph (134.05 km/h) |
| 100 mph (160.93 km/h) | 87.68 mph (141.1 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1462 | 1699 | 1829 | 1910 | 1997 | 2060 | 2128 | 2209 | 2321 | 2433 | 2557 | 2657 | 2837 | 3037 | 3192 | 3292 | 3348 | 3553 | 3839 | 4462 |
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