Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/75-15 | 33/12.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.24 (793.5) | 33.03 (838.92) | 1.79 (45.42) 5.7% |
| Width inches (mm) | 10.83 (275) | 12.52 (318) | 1.69 (43) 15.6% |
| Circum. inches (mm) | 98.14 (2492.85) | 103.76 (2635.54) | 5.62 (142.69) 5.7% |
| Sidewall Height inches (mm) | 8.12 (206.25) | 9.01 (228.96) | 0.89 (22.71) 11% |
| Revolutions per mile (km) | 645.58 (401.15) | 610.63 (379.43) | -34.95 (-21.72) -5.4% |
33/12.5-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.14 mph (34.03 km/h) |
| 25 mph (40.23 km/h) | 26.43 mph (42.54 km/h) |
| 30 mph (48.28 km/h) | 31.72 mph (51.04 km/h) |
| 35 mph (56.33 km/h) | 37 mph (59.55 km/h) |
| 40 mph (64.37 km/h) | 42.29 mph (68.06 km/h) |
| 45 mph (72.42 km/h) | 47.58 mph (76.57 km/h) |
| 50 mph (80.47 km/h) | 52.86 mph (85.07 km/h) |
| 55 mph (88.51 km/h) | 58.15 mph (93.58 km/h) |
| 60 mph (96.56 km/h) | 63.43 mph (102.09 km/h) |
| 65 mph (104.61 km/h) | 68.72 mph (110.6 km/h) |
| 70 mph (112.65 km/h) | 74.01 mph (119.1 km/h) |
| 75 mph (120.7 km/h) | 79.29 mph (127.61 km/h) |
| 80 mph (128.75 km/h) | 84.58 mph (136.12 km/h) |
| 85 mph (136.79 km/h) | 89.87 mph (144.62 km/h) |
| 90 mph (144.84 km/h) | 95.15 mph (153.13 km/h) |
| 95 mph (152.89 km/h) | 100.44 mph (161.64 km/h) |
| 100 mph (160.93 km/h) | 105.72 mph (170.15 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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