Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/75-15 | 30/10.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.47 (748.5) | 29.93 (760.14) | 0.46 (11.64) 1.6% |
| Width inches (mm) | 9.65 (245) | 10.51 (267) | 0.87 (22) 9% |
| Circum. inches (mm) | 92.58 (2351.48) | 94.02 (2388.05) | 1.44 (36.57) 1.6% |
| Sidewall Height inches (mm) | 7.23 (183.75) | 7.46 (189.57) | 0.23 (5.82) 3.2% |
| Revolutions per mile (km) | 684.4 (425.26) | 673.92 (418.75) | -10.48 (-6.51) -1.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.31 mph (32.69 km/h) |
| 25 mph (40.23 km/h) | 25.39 mph (40.86 km/h) |
| 30 mph (48.28 km/h) | 30.47 mph (49.03 km/h) |
| 35 mph (56.33 km/h) | 35.54 mph (57.2 km/h) |
| 40 mph (64.37 km/h) | 40.62 mph (65.37 km/h) |
| 45 mph (72.42 km/h) | 45.7 mph (73.55 km/h) |
| 50 mph (80.47 km/h) | 50.78 mph (81.72 km/h) |
| 55 mph (88.51 km/h) | 55.86 mph (89.89 km/h) |
| 60 mph (96.56 km/h) | 60.93 mph (98.06 km/h) |
| 65 mph (104.61 km/h) | 66.01 mph (106.23 km/h) |
| 70 mph (112.65 km/h) | 71.09 mph (114.41 km/h) |
| 75 mph (120.7 km/h) | 76.17 mph (122.58 km/h) |
| 80 mph (128.75 km/h) | 81.24 mph (130.75 km/h) |
| 85 mph (136.79 km/h) | 86.32 mph (138.92 km/h) |
| 90 mph (144.84 km/h) | 91.4 mph (147.09 km/h) |
| 95 mph (152.89 km/h) | 96.48 mph (155.27 km/h) |
| 100 mph (160.93 km/h) | 101.56 mph (163.44 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1715 | 1992 | 2146 | 2240 | 2343 | 2416 | 2496 | 2591 | 2722 | 2853 | 2999 | 3116 | 3328 | 3561 | 3744 | 3861 | 3926 | 4167 | 4503 | 5233 |
Better Fuel Economy Factory Ratios Increased Power
