Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 37/12.5-18 | 295/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 37.03 (940.56) | 34.26 (870.2) | -2.77 (-70.36) -7.5% |
| Width inches (mm) | 12.52 (318) | 11.61 (295) | -0.91 (-23) -7.2% |
| Circum. inches (mm) | 116.33 (2954.86) | 107.63 (2733.81) | -8.7 (-221.04) -7.5% |
| Sidewall Height inches (mm) | 9.51 (241.68) | 8.13 (206.5) | -1.39 (-35.18) -14.6% |
| Revolutions per mile (km) | 544.64 (338.43) | 588.68 (365.79) | 44.04 (27.36) 8.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.5 mph (29.78 km/h) |
| 25 mph (40.23 km/h) | 23.13 mph (37.22 km/h) |
| 30 mph (48.28 km/h) | 27.76 mph (44.67 km/h) |
| 35 mph (56.33 km/h) | 32.38 mph (52.11 km/h) |
| 40 mph (64.37 km/h) | 37.01 mph (59.56 km/h) |
| 45 mph (72.42 km/h) | 41.63 mph (67 km/h) |
| 50 mph (80.47 km/h) | 46.26 mph (74.45 km/h) |
| 55 mph (88.51 km/h) | 50.89 mph (81.89 km/h) |
| 60 mph (96.56 km/h) | 55.51 mph (89.34 km/h) |
| 65 mph (104.61 km/h) | 60.14 mph (96.78 km/h) |
| 70 mph (112.65 km/h) | 64.76 mph (104.23 km/h) |
| 75 mph (120.7 km/h) | 69.39 mph (111.67 km/h) |
| 80 mph (128.75 km/h) | 74.02 mph (119.12 km/h) |
| 85 mph (136.79 km/h) | 78.64 mph (126.56 km/h) |
| 90 mph (144.84 km/h) | 83.27 mph (134.01 km/h) |
| 95 mph (152.89 km/h) | 87.89 mph (141.45 km/h) |
| 100 mph (160.93 km/h) | 92.52 mph (148.9 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1498 | 1740 | 1874 | 1957 | 2046 | 2110 | 2180 | 2263 | 2378 | 2493 | 2620 | 2722 | 2907 | 3111 | 3270 | 3372 | 3430 | 3640 | 3933 | 4571 |
Better Fuel Economy Factory Ratios Increased Power
