Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/90-18 | 295/75-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.4 (772.2) | 35.42 (899.7) | 5.02 (127.5) 16.5% |
| Width inches (mm) | 6.89 (175) | 11.61 (295) | 4.72 (120) 68.6% |
| Circum. inches (mm) | 95.51 (2425.94) | 111.28 (2826.49) | 15.77 (400.55) 16.5% |
| Sidewall Height inches (mm) | 6.2 (157.5) | 8.71 (221.25) | 2.51 (63.75) 40.5% |
| Revolutions per mile (km) | 663.39 (412.21) | 569.38 (353.79) | -94.01 (-58.42) -14.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.3 mph (37.5 km/h) |
| 25 mph (40.23 km/h) | 29.13 mph (46.88 km/h) |
| 30 mph (48.28 km/h) | 34.95 mph (56.25 km/h) |
| 35 mph (56.33 km/h) | 40.78 mph (65.63 km/h) |
| 40 mph (64.37 km/h) | 46.6 mph (75 km/h) |
| 45 mph (72.42 km/h) | 52.43 mph (84.38 km/h) |
| 50 mph (80.47 km/h) | 58.26 mph (93.75 km/h) |
| 55 mph (88.51 km/h) | 64.08 mph (103.13 km/h) |
| 60 mph (96.56 km/h) | 69.91 mph (112.5 km/h) |
| 65 mph (104.61 km/h) | 75.73 mph (121.88 km/h) |
| 70 mph (112.65 km/h) | 81.56 mph (131.25 km/h) |
| 75 mph (120.7 km/h) | 87.38 mph (140.63 km/h) |
| 80 mph (128.75 km/h) | 93.21 mph (150.01 km/h) |
| 85 mph (136.79 km/h) | 99.03 mph (159.38 km/h) |
| 90 mph (144.84 km/h) | 104.86 mph (168.76 km/h) |
| 95 mph (152.89 km/h) | 110.69 mph (178.13 km/h) |
| 100 mph (160.93 km/h) | 116.51 mph (187.51 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1449 | 1683 | 1813 | 1893 | 1979 | 2041 | 2109 | 2189 | 2300 | 2411 | 2534 | 2633 | 2812 | 3009 | 3163 | 3262 | 3317 | 3521 | 3804 | 4421 |
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