Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/30-20 | 305/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.97 (685) | 28.41 (721.5) | 1.44 (36.5) 5.3% |
| Width inches (mm) | 11.61 (295) | 12.01 (305) | 0.39 (10) 3.4% |
| Circum. inches (mm) | 84.72 (2151.99) | 89.24 (2266.66) | 4.51 (114.67) 5.3% |
| Sidewall Height inches (mm) | 3.48 (88.5) | 4.2 (106.75) | 0.72 (18.25) 20.6% |
| Revolutions per mile (km) | 747.84 (464.69) | 710.01 (441.18) | -37.83 (-23.51) -5.1% |
305/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.07 mph (33.9 km/h) |
| 25 mph (40.23 km/h) | 26.33 mph (42.38 km/h) |
| 30 mph (48.28 km/h) | 31.6 mph (50.85 km/h) |
| 35 mph (56.33 km/h) | 36.86 mph (59.33 km/h) |
| 40 mph (64.37 km/h) | 42.13 mph (67.8 km/h) |
| 45 mph (72.42 km/h) | 47.4 mph (76.28 km/h) |
| 50 mph (80.47 km/h) | 52.66 mph (84.76 km/h) |
| 55 mph (88.51 km/h) | 57.93 mph (93.23 km/h) |
| 60 mph (96.56 km/h) | 63.2 mph (101.71 km/h) |
| 65 mph (104.61 km/h) | 68.46 mph (110.18 km/h) |
| 70 mph (112.65 km/h) | 73.73 mph (118.66 km/h) |
| 75 mph (120.7 km/h) | 79 mph (127.13 km/h) |
| 80 mph (128.75 km/h) | 84.26 mph (135.61 km/h) |
| 85 mph (136.79 km/h) | 89.53 mph (144.08 km/h) |
| 90 mph (144.84 km/h) | 94.8 mph (152.56 km/h) |
| 95 mph (152.89 km/h) | 100.06 mph (161.03 km/h) |
| 100 mph (160.93 km/h) | 105.33 mph (169.51 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1807 | 2099 | 2260 | 2360 | 2468 | 2545 | 2630 | 2729 | 2868 | 3006 | 3160 | 3283 | 3506 | 3752 | 3944 | 4067 | 4136 | 4390 | 4744 | 5513 |
Better Fuel Economy Factory Ratios Increased Power
