Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/80-16 | 305/80-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.84 (910.4) | 35.21 (894.4) | -0.63 (-16) -1.8% |
| Width inches (mm) | 12.4 (315) | 12.01 (305) | -0.39 (-10) -3.2% |
| Circum. inches (mm) | 112.6 (2860.11) | 110.62 (2809.84) | -1.98 (-50.27) -1.8% |
| Sidewall Height inches (mm) | 9.92 (252) | 9.61 (244) | -0.31 (-8) -3.2% |
| Revolutions per mile (km) | 562.69 (349.64) | 572.75 (355.89) | 10.07 (6.25) 1.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.65 mph (31.62 km/h) |
| 25 mph (40.23 km/h) | 24.56 mph (39.53 km/h) |
| 30 mph (48.28 km/h) | 29.47 mph (47.43 km/h) |
| 35 mph (56.33 km/h) | 34.38 mph (55.34 km/h) |
| 40 mph (64.37 km/h) | 39.3 mph (63.24 km/h) |
| 45 mph (72.42 km/h) | 44.21 mph (71.15 km/h) |
| 50 mph (80.47 km/h) | 49.12 mph (79.05 km/h) |
| 55 mph (88.51 km/h) | 54.03 mph (86.96 km/h) |
| 60 mph (96.56 km/h) | 58.95 mph (94.86 km/h) |
| 65 mph (104.61 km/h) | 63.86 mph (102.77 km/h) |
| 70 mph (112.65 km/h) | 68.77 mph (110.67 km/h) |
| 75 mph (120.7 km/h) | 73.68 mph (118.58 km/h) |
| 80 mph (128.75 km/h) | 78.59 mph (126.49 km/h) |
| 85 mph (136.79 km/h) | 83.51 mph (134.39 km/h) |
| 90 mph (144.84 km/h) | 88.42 mph (142.3 km/h) |
| 95 mph (152.89 km/h) | 93.33 mph (150.2 km/h) |
| 100 mph (160.93 km/h) | 98.24 mph (158.11 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1458 | 1693 | 1823 | 1904 | 1991 | 2053 | 2121 | 2202 | 2313 | 2425 | 2549 | 2648 | 2828 | 3027 | 3182 | 3281 | 3337 | 3542 | 3827 | 4447 |
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