Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/75-15 | 33/12.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.6 (853.5) | 33.03 (838.92) | -0.57 (-14.58) -1.7% |
| Width inches (mm) | 12.4 (315) | 12.52 (318) | 0.12 (3) 1% |
| Circum. inches (mm) | 105.56 (2681.35) | 103.76 (2635.54) | -1.8 (-45.8) -1.7% |
| Sidewall Height inches (mm) | 9.3 (236.25) | 9.01 (228.96) | -0.29 (-7.29) -3.1% |
| Revolutions per mile (km) | 600.2 (372.95) | 610.63 (379.43) | 10.43 (6.48) 1.7% |
33/12.5-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.66 mph (31.64 km/h) |
| 25 mph (40.23 km/h) | 24.57 mph (39.55 km/h) |
| 30 mph (48.28 km/h) | 29.49 mph (47.46 km/h) |
| 35 mph (56.33 km/h) | 34.4 mph (55.36 km/h) |
| 40 mph (64.37 km/h) | 39.32 mph (63.27 km/h) |
| 45 mph (72.42 km/h) | 44.23 mph (71.18 km/h) |
| 50 mph (80.47 km/h) | 49.15 mph (79.09 km/h) |
| 55 mph (88.51 km/h) | 54.06 mph (87 km/h) |
| 60 mph (96.56 km/h) | 58.98 mph (94.91 km/h) |
| 65 mph (104.61 km/h) | 63.89 mph (102.82 km/h) |
| 70 mph (112.65 km/h) | 68.8 mph (110.73 km/h) |
| 75 mph (120.7 km/h) | 73.72 mph (118.64 km/h) |
| 80 mph (128.75 km/h) | 78.63 mph (126.55 km/h) |
| 85 mph (136.79 km/h) | 83.55 mph (134.46 km/h) |
| 90 mph (144.84 km/h) | 88.46 mph (142.37 km/h) |
| 95 mph (152.89 km/h) | 93.38 mph (150.28 km/h) |
| 100 mph (160.93 km/h) | 98.29 mph (158.19 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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