Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 33/12-17 | 305/65-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.09 (840.5) | 32.61 (828.3) | -0.48 (-12.2) -1.5% |
| Width inches (mm) | 12.01 (305) | 12.01 (305) | 0 (0) 0% |
| Circum. inches (mm) | 103.96 (2640.51) | 102.45 (2602.18) | -1.51 (-38.33) -1.5% |
| Sidewall Height inches (mm) | 8.05 (204.35) | 7.81 (198.25) | -0.24 (-6.1) -3% |
| Revolutions per mile (km) | 609.48 (378.71) | 618.46 (384.29) | 8.98 (5.58) 1.5% |
305/65-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.71 mph (31.72 km/h) |
| 25 mph (40.23 km/h) | 24.64 mph (39.65 km/h) |
| 30 mph (48.28 km/h) | 29.56 mph (47.58 km/h) |
| 35 mph (56.33 km/h) | 34.49 mph (55.51 km/h) |
| 40 mph (64.37 km/h) | 39.42 mph (63.44 km/h) |
| 45 mph (72.42 km/h) | 44.35 mph (71.37 km/h) |
| 50 mph (80.47 km/h) | 49.27 mph (79.3 km/h) |
| 55 mph (88.51 km/h) | 54.2 mph (87.23 km/h) |
| 60 mph (96.56 km/h) | 59.13 mph (95.16 km/h) |
| 65 mph (104.61 km/h) | 64.06 mph (103.09 km/h) |
| 70 mph (112.65 km/h) | 68.98 mph (111.02 km/h) |
| 75 mph (120.7 km/h) | 73.91 mph (118.95 km/h) |
| 80 mph (128.75 km/h) | 78.84 mph (126.88 km/h) |
| 85 mph (136.79 km/h) | 83.77 mph (134.81 km/h) |
| 90 mph (144.84 km/h) | 88.69 mph (142.74 km/h) |
| 95 mph (152.89 km/h) | 93.62 mph (150.67 km/h) |
| 100 mph (160.93 km/h) | 98.55 mph (158.6 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1574 | 1828 | 1969 | 2056 | 2150 | 2217 | 2290 | 2378 | 2498 | 2619 | 2753 | 2860 | 3054 | 3268 | 3436 | 3543 | 3603 | 3824 | 4132 | 4802 |
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