Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/80-16 | 305/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.84 (910.4) | 36.41 (924.9) | 0.57 (14.5) 1.6% |
| Width inches (mm) | 12.4 (315) | 12.01 (305) | -0.39 (-10) -3.2% |
| Circum. inches (mm) | 112.6 (2860.11) | 114.4 (2905.66) | 1.79 (45.55) 1.6% |
| Sidewall Height inches (mm) | 9.92 (252) | 10.21 (259.25) | 0.29 (7.25) 2.9% |
| Revolutions per mile (km) | 562.69 (349.64) | 553.87 (344.16) | -8.82 (-5.48) -1.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.32 mph (32.7 km/h) |
| 25 mph (40.23 km/h) | 25.4 mph (40.87 km/h) |
| 30 mph (48.28 km/h) | 30.48 mph (49.05 km/h) |
| 35 mph (56.33 km/h) | 35.56 mph (57.22 km/h) |
| 40 mph (64.37 km/h) | 40.64 mph (65.4 km/h) |
| 45 mph (72.42 km/h) | 45.72 mph (73.57 km/h) |
| 50 mph (80.47 km/h) | 50.8 mph (81.75 km/h) |
| 55 mph (88.51 km/h) | 55.88 mph (89.92 km/h) |
| 60 mph (96.56 km/h) | 60.96 mph (98.1 km/h) |
| 65 mph (104.61 km/h) | 66.04 mph (106.27 km/h) |
| 70 mph (112.65 km/h) | 71.11 mph (114.45 km/h) |
| 75 mph (120.7 km/h) | 76.19 mph (122.62 km/h) |
| 80 mph (128.75 km/h) | 81.27 mph (130.8 km/h) |
| 85 mph (136.79 km/h) | 86.35 mph (138.97 km/h) |
| 90 mph (144.84 km/h) | 91.43 mph (147.15 km/h) |
| 95 mph (152.89 km/h) | 96.51 mph (155.32 km/h) |
| 100 mph (160.93 km/h) | 101.59 mph (163.5 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1409 | 1637 | 1763 | 1841 | 1925 | 1985 | 2051 | 2129 | 2237 | 2345 | 2465 | 2561 | 2735 | 2927 | 3077 | 3173 | 3227 | 3425 | 3701 | 4300 |
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