Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/50-15 | 33/12.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.4 (696) | 33.03 (838.92) | 5.63 (142.92) 20.5% |
| Width inches (mm) | 12.4 (315) | 12.52 (318) | 0.12 (3) 1% |
| Circum. inches (mm) | 86.08 (2186.55) | 103.76 (2635.54) | 17.68 (449) 20.5% |
| Sidewall Height inches (mm) | 6.2 (157.5) | 9.01 (228.96) | 2.81 (71.46) 45.4% |
| Revolutions per mile (km) | 736.02 (457.34) | 610.63 (379.43) | -125.39 (-77.91) -17% |
33/12.5-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.11 mph (38.8 km/h) |
| 25 mph (40.23 km/h) | 30.13 mph (48.5 km/h) |
| 30 mph (48.28 km/h) | 36.16 mph (58.19 km/h) |
| 35 mph (56.33 km/h) | 42.19 mph (67.89 km/h) |
| 40 mph (64.37 km/h) | 48.21 mph (77.59 km/h) |
| 45 mph (72.42 km/h) | 54.24 mph (87.29 km/h) |
| 50 mph (80.47 km/h) | 60.27 mph (96.99 km/h) |
| 55 mph (88.51 km/h) | 66.29 mph (106.69 km/h) |
| 60 mph (96.56 km/h) | 72.32 mph (116.39 km/h) |
| 65 mph (104.61 km/h) | 78.35 mph (126.09 km/h) |
| 70 mph (112.65 km/h) | 84.37 mph (135.79 km/h) |
| 75 mph (120.7 km/h) | 90.4 mph (145.49 km/h) |
| 80 mph (128.75 km/h) | 96.43 mph (155.19 km/h) |
| 85 mph (136.79 km/h) | 102.45 mph (164.88 km/h) |
| 90 mph (144.84 km/h) | 108.48 mph (174.58 km/h) |
| 95 mph (152.89 km/h) | 114.51 mph (184.28 km/h) |
| 100 mph (160.93 km/h) | 120.53 mph (193.98 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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