Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 30/9.5-15 | 33/12.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.99 (761.78) | 33.03 (838.92) | 3.04 (77.14) 10.1% |
| Width inches (mm) | 9.49 (241) | 12.52 (318) | 3.03 (77) 32% |
| Circum. inches (mm) | 94.22 (2393.2) | 103.76 (2635.54) | 9.54 (242.34) 10.1% |
| Sidewall Height inches (mm) | 7.5 (190.39) | 9.01 (228.96) | 1.52 (38.57) 20.3% |
| Revolutions per mile (km) | 672.46 (417.85) | 610.63 (379.43) | -61.83 (-38.42) -9.2% |
33/12.5-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.03 mph (35.45 km/h) |
| 25 mph (40.23 km/h) | 27.53 mph (44.31 km/h) |
| 30 mph (48.28 km/h) | 33.04 mph (53.17 km/h) |
| 35 mph (56.33 km/h) | 38.54 mph (62.03 km/h) |
| 40 mph (64.37 km/h) | 44.05 mph (70.89 km/h) |
| 45 mph (72.42 km/h) | 49.56 mph (79.75 km/h) |
| 50 mph (80.47 km/h) | 55.06 mph (88.62 km/h) |
| 55 mph (88.51 km/h) | 60.57 mph (97.48 km/h) |
| 60 mph (96.56 km/h) | 66.08 mph (106.34 km/h) |
| 65 mph (104.61 km/h) | 71.58 mph (115.2 km/h) |
| 70 mph (112.65 km/h) | 77.09 mph (124.06 km/h) |
| 75 mph (120.7 km/h) | 82.59 mph (132.92 km/h) |
| 80 mph (128.75 km/h) | 88.1 mph (141.79 km/h) |
| 85 mph (136.79 km/h) | 93.61 mph (150.65 km/h) |
| 90 mph (144.84 km/h) | 99.11 mph (159.51 km/h) |
| 95 mph (152.89 km/h) | 104.62 mph (168.37 km/h) |
| 100 mph (160.93 km/h) | 110.13 mph (177.23 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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