Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 100/100-18 | 110/80-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.87 (657.2) | 24.93 (633.2) | -0.94 (-24) -3.7% |
| Width inches (mm) | 3.94 (100) | 4.33 (110) | 0.39 (10) 10% |
| Circum. inches (mm) | 81.29 (2064.65) | 78.32 (1989.26) | -2.97 (-75.4) -3.7% |
| Sidewall Height inches (mm) | 3.94 (100) | 3.46 (88) | -0.47 (-12) -12% |
| Revolutions per mile (km) | 779.47 (484.34) | 809.02 (502.7) | 29.54 (18.36) 3.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.27 mph (31.01 km/h) |
| 25 mph (40.23 km/h) | 24.09 mph (38.76 km/h) |
| 30 mph (48.28 km/h) | 28.9 mph (46.52 km/h) |
| 35 mph (56.33 km/h) | 33.72 mph (54.27 km/h) |
| 40 mph (64.37 km/h) | 38.54 mph (62.02 km/h) |
| 45 mph (72.42 km/h) | 43.36 mph (69.78 km/h) |
| 50 mph (80.47 km/h) | 48.17 mph (77.53 km/h) |
| 55 mph (88.51 km/h) | 52.99 mph (85.28 km/h) |
| 60 mph (96.56 km/h) | 57.81 mph (93.03 km/h) |
| 65 mph (104.61 km/h) | 62.63 mph (100.79 km/h) |
| 70 mph (112.65 km/h) | 67.44 mph (108.54 km/h) |
| 75 mph (120.7 km/h) | 72.26 mph (116.29 km/h) |
| 80 mph (128.75 km/h) | 77.08 mph (124.05 km/h) |
| 85 mph (136.79 km/h) | 81.9 mph (131.8 km/h) |
| 90 mph (144.84 km/h) | 86.71 mph (139.55 km/h) |
| 95 mph (152.89 km/h) | 91.53 mph (147.3 km/h) |
| 100 mph (160.93 km/h) | 96.35 mph (155.06 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2059 | 2392 | 2576 | 2690 | 2812 | 2900 | 2996 | 3110 | 3268 | 3425 | 3601 | 3741 | 3995 | 4275 | 4494 | 4634 | 4713 | 5002 | 5405 | 6282 |
Better Fuel Economy Factory Ratios Increased Power
