Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/75-15 | 33/12.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.97 (583.5) | 33.03 (838.92) | 10.06 (255.42) 43.8% |
| Width inches (mm) | 5.31 (135) | 12.52 (318) | 7.2 (183) 135.6% |
| Circum. inches (mm) | 72.17 (1833.12) | 103.76 (2635.54) | 31.59 (802.43) 43.8% |
| Sidewall Height inches (mm) | 3.99 (101.25) | 9.01 (228.96) | 5.03 (127.71) 126.1% |
| Revolutions per mile (km) | 877.93 (545.52) | 610.63 (379.43) | -267.3 (-166.09) -30.4% |
33/12.5-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 28.75 mph (46.28 km/h) |
| 25 mph (40.23 km/h) | 35.94 mph (57.85 km/h) |
| 30 mph (48.28 km/h) | 43.13 mph (69.41 km/h) |
| 35 mph (56.33 km/h) | 50.32 mph (80.98 km/h) |
| 40 mph (64.37 km/h) | 57.51 mph (92.55 km/h) |
| 45 mph (72.42 km/h) | 64.7 mph (104.12 km/h) |
| 50 mph (80.47 km/h) | 71.89 mph (115.69 km/h) |
| 55 mph (88.51 km/h) | 79.08 mph (127.26 km/h) |
| 60 mph (96.56 km/h) | 86.26 mph (138.83 km/h) |
| 65 mph (104.61 km/h) | 93.45 mph (150.4 km/h) |
| 70 mph (112.65 km/h) | 100.64 mph (161.97 km/h) |
| 75 mph (120.7 km/h) | 107.83 mph (173.54 km/h) |
| 80 mph (128.75 km/h) | 115.02 mph (185.11 km/h) |
| 85 mph (136.79 km/h) | 122.21 mph (196.67 km/h) |
| 90 mph (144.84 km/h) | 129.4 mph (208.24 km/h) |
| 95 mph (152.89 km/h) | 136.59 mph (219.81 km/h) |
| 100 mph (160.93 km/h) | 143.77 mph (231.38 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1554 | 1805 | 1944 | 2030 | 2123 | 2189 | 2261 | 2347 | 2466 | 2585 | 2718 | 2824 | 3015 | 3227 | 3392 | 3498 | 3558 | 3776 | 4080 | 4741 |
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