Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/75-16.5 | 305/65-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.97 (786.6) | 32.61 (828.3) | 1.64 (41.7) 5.3% |
| Width inches (mm) | 9.65 (245) | 12.01 (305) | 2.36 (60) 24.5% |
| Circum. inches (mm) | 97.29 (2471.18) | 102.45 (2602.18) | 5.16 (131) 5.3% |
| Sidewall Height inches (mm) | 7.23 (183.75) | 7.81 (198.25) | 0.57 (14.5) 7.9% |
| Revolutions per mile (km) | 651.25 (404.66) | 618.46 (384.29) | -32.79 (-20.37) -5% |
305/65-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.06 mph (33.89 km/h) |
| 25 mph (40.23 km/h) | 26.33 mph (42.37 km/h) |
| 30 mph (48.28 km/h) | 31.59 mph (50.84 km/h) |
| 35 mph (56.33 km/h) | 36.86 mph (59.31 km/h) |
| 40 mph (64.37 km/h) | 42.12 mph (67.79 km/h) |
| 45 mph (72.42 km/h) | 47.39 mph (76.26 km/h) |
| 50 mph (80.47 km/h) | 52.65 mph (84.73 km/h) |
| 55 mph (88.51 km/h) | 57.92 mph (93.21 km/h) |
| 60 mph (96.56 km/h) | 63.18 mph (101.68 km/h) |
| 65 mph (104.61 km/h) | 68.45 mph (110.15 km/h) |
| 70 mph (112.65 km/h) | 73.71 mph (118.63 km/h) |
| 75 mph (120.7 km/h) | 78.98 mph (127.1 km/h) |
| 80 mph (128.75 km/h) | 84.24 mph (135.57 km/h) |
| 85 mph (136.79 km/h) | 89.51 mph (144.05 km/h) |
| 90 mph (144.84 km/h) | 94.77 mph (152.52 km/h) |
| 95 mph (152.89 km/h) | 100.04 mph (160.99 km/h) |
| 100 mph (160.93 km/h) | 105.3 mph (169.47 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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