Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 31/10-15 | 33/12.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31 (787.4) | 33.03 (838.92) | 2.03 (51.52) 6.5% |
| Width inches (mm) | 10 (254) | 12.52 (318) | 2.52 (64) 25.2% |
| Circum. inches (mm) | 97.39 (2473.69) | 103.76 (2635.54) | 6.37 (161.85) 6.5% |
| Sidewall Height inches (mm) | 8 (203.2) | 9.01 (228.96) | 1.01 (25.76) 12.7% |
| Revolutions per mile (km) | 650.58 (404.25) | 610.63 (379.43) | -39.95 (-24.83) -6.1% |
33/12.5-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.31 mph (34.29 km/h) |
| 25 mph (40.23 km/h) | 26.64 mph (42.87 km/h) |
| 30 mph (48.28 km/h) | 31.96 mph (51.44 km/h) |
| 35 mph (56.33 km/h) | 37.29 mph (60.01 km/h) |
| 40 mph (64.37 km/h) | 42.62 mph (68.59 km/h) |
| 45 mph (72.42 km/h) | 47.94 mph (77.16 km/h) |
| 50 mph (80.47 km/h) | 53.27 mph (85.73 km/h) |
| 55 mph (88.51 km/h) | 58.6 mph (94.31 km/h) |
| 60 mph (96.56 km/h) | 63.93 mph (102.88 km/h) |
| 65 mph (104.61 km/h) | 69.25 mph (111.45 km/h) |
| 70 mph (112.65 km/h) | 74.58 mph (120.03 km/h) |
| 75 mph (120.7 km/h) | 79.91 mph (128.6 km/h) |
| 80 mph (128.75 km/h) | 85.23 mph (137.17 km/h) |
| 85 mph (136.79 km/h) | 90.56 mph (145.75 km/h) |
| 90 mph (144.84 km/h) | 95.89 mph (154.32 km/h) |
| 95 mph (152.89 km/h) | 101.22 mph (162.89 km/h) |
| 100 mph (160.93 km/h) | 106.54 mph (171.46 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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