Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/85-16 | 245/80-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.73 (805.9) | 31.43 (798.4) | -0.3 (-7.5) -0.9% |
| Width inches (mm) | 9.25 (235) | 9.65 (245) | 0.39 (10) 4.3% |
| Circum. inches (mm) | 99.68 (2531.81) | 98.75 (2508.25) | -0.93 (-23.56) -0.9% |
| Sidewall Height inches (mm) | 7.86 (199.75) | 7.72 (196) | -0.15 (-3.75) -1.9% |
| Revolutions per mile (km) | 635.65 (394.97) | 641.62 (398.68) | 5.97 (3.71) 0.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.81 mph (31.89 km/h) |
| 25 mph (40.23 km/h) | 24.77 mph (39.86 km/h) |
| 30 mph (48.28 km/h) | 29.72 mph (47.83 km/h) |
| 35 mph (56.33 km/h) | 34.67 mph (55.8 km/h) |
| 40 mph (64.37 km/h) | 39.63 mph (63.77 km/h) |
| 45 mph (72.42 km/h) | 44.58 mph (71.75 km/h) |
| 50 mph (80.47 km/h) | 49.53 mph (79.72 km/h) |
| 55 mph (88.51 km/h) | 54.49 mph (87.69 km/h) |
| 60 mph (96.56 km/h) | 59.44 mph (95.66 km/h) |
| 65 mph (104.61 km/h) | 64.4 mph (103.63 km/h) |
| 70 mph (112.65 km/h) | 69.35 mph (111.61 km/h) |
| 75 mph (120.7 km/h) | 74.3 mph (119.58 km/h) |
| 80 mph (128.75 km/h) | 79.26 mph (127.55 km/h) |
| 85 mph (136.79 km/h) | 84.21 mph (135.52 km/h) |
| 90 mph (144.84 km/h) | 89.16 mph (143.49 km/h) |
| 95 mph (152.89 km/h) | 94.12 mph (151.47 km/h) |
| 100 mph (160.93 km/h) | 99.07 mph (159.44 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1633 | 1897 | 2043 | 2133 | 2230 | 2300 | 2376 | 2467 | 2592 | 2717 | 2856 | 2967 | 3168 | 3391 | 3564 | 3676 | 3738 | 3967 | 4287 | 4982 |
Better Fuel Economy Factory Ratios Increased Power
