Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/80-15 | 33/12.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.32 (821) | 33.03 (838.92) | 0.71 (17.92) 2.2% |
| Width inches (mm) | 10.83 (275) | 12.52 (318) | 1.69 (43) 15.6% |
| Circum. inches (mm) | 101.55 (2579.25) | 103.76 (2635.54) | 2.22 (56.3) 2.2% |
| Sidewall Height inches (mm) | 8.66 (220) | 9.01 (228.96) | 0.35 (8.96) 4.1% |
| Revolutions per mile (km) | 623.96 (387.71) | 610.63 (379.43) | -13.33 (-8.28) -2.1% |
33/12.5-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.44 mph (32.89 km/h) |
| 25 mph (40.23 km/h) | 25.55 mph (41.11 km/h) |
| 30 mph (48.28 km/h) | 30.65 mph (49.33 km/h) |
| 35 mph (56.33 km/h) | 35.76 mph (57.56 km/h) |
| 40 mph (64.37 km/h) | 40.87 mph (65.78 km/h) |
| 45 mph (72.42 km/h) | 45.98 mph (74 km/h) |
| 50 mph (80.47 km/h) | 51.09 mph (82.22 km/h) |
| 55 mph (88.51 km/h) | 56.2 mph (90.45 km/h) |
| 60 mph (96.56 km/h) | 61.31 mph (98.67 km/h) |
| 65 mph (104.61 km/h) | 66.42 mph (106.89 km/h) |
| 70 mph (112.65 km/h) | 71.53 mph (115.11 km/h) |
| 75 mph (120.7 km/h) | 76.64 mph (123.34 km/h) |
| 80 mph (128.75 km/h) | 81.75 mph (131.56 km/h) |
| 85 mph (136.79 km/h) | 86.86 mph (139.78 km/h) |
| 90 mph (144.84 km/h) | 91.96 mph (148 km/h) |
| 95 mph (152.89 km/h) | 97.07 mph (156.23 km/h) |
| 100 mph (160.93 km/h) | 102.18 mph (164.45 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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