Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/30-23 | 33/11.5-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.2 (767.2) | 33.11 (840.88) | 2.9 (73.68) 9.6% |
| Width inches (mm) | 12.01 (305) | 11.5 (292) | -0.51 (-13) -4.3% |
| Circum. inches (mm) | 94.89 (2410.23) | 104 (2641.7) | 9.11 (231.47) 9.6% |
| Sidewall Height inches (mm) | 3.6 (91.5) | 6.55 (166.44) | 2.95 (74.94) 81.9% |
| Revolutions per mile (km) | 667.71 (414.9) | 609.21 (378.54) | -58.51 (-36.35) -8.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.92 mph (35.28 km/h) |
| 25 mph (40.23 km/h) | 27.4 mph (44.1 km/h) |
| 30 mph (48.28 km/h) | 32.88 mph (52.92 km/h) |
| 35 mph (56.33 km/h) | 38.36 mph (61.74 km/h) |
| 40 mph (64.37 km/h) | 43.84 mph (70.56 km/h) |
| 45 mph (72.42 km/h) | 49.32 mph (79.38 km/h) |
| 50 mph (80.47 km/h) | 54.8 mph (88.2 km/h) |
| 55 mph (88.51 km/h) | 60.28 mph (97.01 km/h) |
| 60 mph (96.56 km/h) | 65.76 mph (105.83 km/h) |
| 65 mph (104.61 km/h) | 71.24 mph (114.65 km/h) |
| 70 mph (112.65 km/h) | 76.72 mph (123.47 km/h) |
| 75 mph (120.7 km/h) | 82.2 mph (132.29 km/h) |
| 80 mph (128.75 km/h) | 87.68 mph (141.11 km/h) |
| 85 mph (136.79 km/h) | 93.16 mph (149.93 km/h) |
| 90 mph (144.84 km/h) | 98.64 mph (158.75 km/h) |
| 95 mph (152.89 km/h) | 104.12 mph (167.57 km/h) |
| 100 mph (160.93 km/h) | 109.6 mph (176.39 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1550 | 1801 | 1940 | 2025 | 2118 | 2184 | 2256 | 2342 | 2461 | 2579 | 2711 | 2817 | 3008 | 3219 | 3384 | 3490 | 3549 | 3767 | 4070 | 4730 |
Better Fuel Economy Factory Ratios Increased Power
