Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 37/12.5-18 | 35/12.5-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 37.03 (940.56) | 35.03 (889.68) | -2 (-50.88) -5.4% |
| Width inches (mm) | 12.52 (318) | 12.52 (318) | 0 (0) 0% |
| Circum. inches (mm) | 116.33 (2954.86) | 110.04 (2795.01) | -6.29 (-159.84) -5.4% |
| Sidewall Height inches (mm) | 9.51 (241.68) | 8.51 (216.24) | -1 (-25.44) -10.5% |
| Revolutions per mile (km) | 544.64 (338.43) | 575.79 (357.78) | 31.15 (19.35) 5.7% |
35/12.5-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.92 mph (30.45 km/h) |
| 25 mph (40.23 km/h) | 23.65 mph (38.06 km/h) |
| 30 mph (48.28 km/h) | 28.38 mph (45.67 km/h) |
| 35 mph (56.33 km/h) | 33.11 mph (53.28 km/h) |
| 40 mph (64.37 km/h) | 37.84 mph (60.89 km/h) |
| 45 mph (72.42 km/h) | 42.57 mph (68.5 km/h) |
| 50 mph (80.47 km/h) | 47.3 mph (76.11 km/h) |
| 55 mph (88.51 km/h) | 52.02 mph (83.73 km/h) |
| 60 mph (96.56 km/h) | 56.75 mph (91.34 km/h) |
| 65 mph (104.61 km/h) | 61.48 mph (98.95 km/h) |
| 70 mph (112.65 km/h) | 66.21 mph (106.56 km/h) |
| 75 mph (120.7 km/h) | 70.94 mph (114.17 km/h) |
| 80 mph (128.75 km/h) | 75.67 mph (121.78 km/h) |
| 85 mph (136.79 km/h) | 80.4 mph (129.39 km/h) |
| 90 mph (144.84 km/h) | 85.13 mph (137.01 km/h) |
| 95 mph (152.89 km/h) | 89.86 mph (144.62 km/h) |
| 100 mph (160.93 km/h) | 94.59 mph (152.23 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1465 | 1702 | 1833 | 1914 | 2002 | 2064 | 2132 | 2214 | 2326 | 2438 | 2563 | 2662 | 2843 | 3043 | 3199 | 3298 | 3355 | 3560 | 3847 | 4471 |
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