Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/75-15 | 33/12.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.29 (718.5) | 33.03 (838.92) | 4.74 (120.42) 16.8% |
| Width inches (mm) | 8.86 (225) | 12.52 (318) | 3.66 (93) 41.3% |
| Circum. inches (mm) | 88.87 (2257.23) | 103.76 (2635.54) | 14.89 (378.31) 16.8% |
| Sidewall Height inches (mm) | 6.64 (168.75) | 9.01 (228.96) | 2.37 (60.21) 35.7% |
| Revolutions per mile (km) | 712.97 (443.02) | 610.63 (379.43) | -102.34 (-63.59) -14.4% |
33/12.5-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.35 mph (37.58 km/h) |
| 25 mph (40.23 km/h) | 29.19 mph (46.98 km/h) |
| 30 mph (48.28 km/h) | 35.03 mph (56.37 km/h) |
| 35 mph (56.33 km/h) | 40.87 mph (65.77 km/h) |
| 40 mph (64.37 km/h) | 46.7 mph (75.16 km/h) |
| 45 mph (72.42 km/h) | 52.54 mph (84.56 km/h) |
| 50 mph (80.47 km/h) | 58.38 mph (93.95 km/h) |
| 55 mph (88.51 km/h) | 64.22 mph (103.35 km/h) |
| 60 mph (96.56 km/h) | 70.06 mph (112.74 km/h) |
| 65 mph (104.61 km/h) | 75.89 mph (122.14 km/h) |
| 70 mph (112.65 km/h) | 81.73 mph (131.54 km/h) |
| 75 mph (120.7 km/h) | 87.57 mph (140.93 km/h) |
| 80 mph (128.75 km/h) | 93.41 mph (150.33 km/h) |
| 85 mph (136.79 km/h) | 99.25 mph (159.72 km/h) |
| 90 mph (144.84 km/h) | 105.08 mph (169.12 km/h) |
| 95 mph (152.89 km/h) | 110.92 mph (178.51 km/h) |
| 100 mph (160.93 km/h) | 116.76 mph (187.91 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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