Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/75-15 | 32/9.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.88 (733.5) | 31.89 (809.98) | 3.01 (76.48) 10.4% |
| Width inches (mm) | 9.25 (235) | 9.49 (241) | 0.24 (6) 2.6% |
| Circum. inches (mm) | 90.72 (2304.36) | 100.18 (2544.63) | 9.46 (240.27) 10.4% |
| Sidewall Height inches (mm) | 6.94 (176.25) | 8.44 (214.49) | 1.51 (38.24) 21.7% |
| Revolutions per mile (km) | 698.39 (433.96) | 632.45 (392.98) | -65.94 (-40.98) -9.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.09 mph (35.54 km/h) |
| 25 mph (40.23 km/h) | 27.61 mph (44.43 km/h) |
| 30 mph (48.28 km/h) | 33.13 mph (53.31 km/h) |
| 35 mph (56.33 km/h) | 38.65 mph (62.2 km/h) |
| 40 mph (64.37 km/h) | 44.17 mph (71.09 km/h) |
| 45 mph (72.42 km/h) | 49.69 mph (79.97 km/h) |
| 50 mph (80.47 km/h) | 55.21 mph (88.86 km/h) |
| 55 mph (88.51 km/h) | 60.73 mph (97.74 km/h) |
| 60 mph (96.56 km/h) | 66.26 mph (106.63 km/h) |
| 65 mph (104.61 km/h) | 71.78 mph (115.51 km/h) |
| 70 mph (112.65 km/h) | 77.3 mph (124.4 km/h) |
| 75 mph (120.7 km/h) | 82.82 mph (133.29 km/h) |
| 80 mph (128.75 km/h) | 88.34 mph (142.17 km/h) |
| 85 mph (136.79 km/h) | 93.86 mph (151.06 km/h) |
| 90 mph (144.84 km/h) | 99.38 mph (159.94 km/h) |
| 95 mph (152.89 km/h) | 104.91 mph (168.83 km/h) |
| 100 mph (160.93 km/h) | 110.43 mph (177.71 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1609 | 1870 | 2014 | 2103 | 2198 | 2267 | 2342 | 2431 | 2555 | 2678 | 2815 | 2924 | 3123 | 3342 | 3513 | 3623 | 3685 | 3911 | 4226 | 4911 |
Better Fuel Economy Factory Ratios Increased Power
