Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/30-18 | 195/35-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.55 (598.2) | 23.37 (593.7) | -0.18 (-4.5) -0.8% |
| Width inches (mm) | 9.25 (235) | 7.68 (195) | -1.57 (-40) -17% |
| Circum. inches (mm) | 73.99 (1879.3) | 73.43 (1865.16) | -0.56 (-14.14) -0.8% |
| Sidewall Height inches (mm) | 2.78 (70.5) | 2.69 (68.25) | -0.09 (-2.25) -3.2% |
| Revolutions per mile (km) | 856.35 (532.11) | 862.84 (536.14) | 6.49 (4.03) 0.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.85 mph (31.94 km/h) |
| 25 mph (40.23 km/h) | 24.81 mph (39.93 km/h) |
| 30 mph (48.28 km/h) | 29.77 mph (47.92 km/h) |
| 35 mph (56.33 km/h) | 34.74 mph (55.9 km/h) |
| 40 mph (64.37 km/h) | 39.7 mph (63.89 km/h) |
| 45 mph (72.42 km/h) | 44.66 mph (71.88 km/h) |
| 50 mph (80.47 km/h) | 49.62 mph (79.86 km/h) |
| 55 mph (88.51 km/h) | 54.59 mph (87.85 km/h) |
| 60 mph (96.56 km/h) | 59.55 mph (95.83 km/h) |
| 65 mph (104.61 km/h) | 64.51 mph (103.82 km/h) |
| 70 mph (112.65 km/h) | 69.47 mph (111.81 km/h) |
| 75 mph (120.7 km/h) | 74.44 mph (119.79 km/h) |
| 80 mph (128.75 km/h) | 79.4 mph (127.78 km/h) |
| 85 mph (136.79 km/h) | 84.36 mph (135.77 km/h) |
| 90 mph (144.84 km/h) | 89.32 mph (143.75 km/h) |
| 95 mph (152.89 km/h) | 94.29 mph (151.74 km/h) |
| 100 mph (160.93 km/h) | 99.25 mph (159.72 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2196 | 2551 | 2747 | 2869 | 2999 | 3093 | 3196 | 3317 | 3485 | 3653 | 3840 | 3990 | 4261 | 4560 | 4793 | 4943 | 5027 | 5335 | 5765 | 6699 |
Better Fuel Economy Factory Ratios Increased Power
