Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 33/12.5-15 | 235/75-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.03 (838.92) | 28.88 (733.5) | -4.15 (-105.42) -12.6% |
| Width inches (mm) | 12.52 (318) | 9.25 (235) | -3.27 (-83) -26.1% |
| Circum. inches (mm) | 103.76 (2635.54) | 90.72 (2304.36) | -13.04 (-331.19) -12.6% |
| Sidewall Height inches (mm) | 9.01 (228.96) | 6.94 (176.25) | -2.08 (-52.71) -23% |
| Revolutions per mile (km) | 610.63 (379.43) | 698.39 (433.96) | 87.76 (54.53) 14.4% |
235/75-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.49 mph (28.14 km/h) |
| 25 mph (40.23 km/h) | 21.86 mph (35.18 km/h) |
| 30 mph (48.28 km/h) | 26.23 mph (42.21 km/h) |
| 35 mph (56.33 km/h) | 30.6 mph (49.25 km/h) |
| 40 mph (64.37 km/h) | 34.97 mph (56.28 km/h) |
| 45 mph (72.42 km/h) | 39.35 mph (63.32 km/h) |
| 50 mph (80.47 km/h) | 43.72 mph (70.36 km/h) |
| 55 mph (88.51 km/h) | 48.09 mph (77.39 km/h) |
| 60 mph (96.56 km/h) | 52.46 mph (84.43 km/h) |
| 65 mph (104.61 km/h) | 56.83 mph (91.46 km/h) |
| 70 mph (112.65 km/h) | 61.2 mph (98.5 km/h) |
| 75 mph (120.7 km/h) | 65.58 mph (105.53 km/h) |
| 80 mph (128.75 km/h) | 69.95 mph (112.57 km/h) |
| 85 mph (136.79 km/h) | 74.32 mph (119.6 km/h) |
| 90 mph (144.84 km/h) | 78.69 mph (126.64 km/h) |
| 95 mph (152.89 km/h) | 83.06 mph (133.68 km/h) |
| 100 mph (160.93 km/h) | 87.43 mph (140.71 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1777 | 2065 | 2223 | 2322 | 2428 | 2503 | 2586 | 2685 | 2821 | 2957 | 3108 | 3229 | 3449 | 3691 | 3880 | 4001 | 4069 | 4318 | 4666 | 5423 |
Better Fuel Economy Factory Ratios Increased Power
