Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/30-30 | 315/65-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 37.44 (951) | 38.12 (968.3) | 0.68 (17.3) 1.8% |
| Width inches (mm) | 12.4 (315) | 12.4 (315) | 0 (0) 0% |
| Circum. inches (mm) | 117.62 (2987.65) | 119.76 (3042) | 2.14 (54.35) 1.8% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 8.06 (204.75) | 4.34 (110.25) 116.7% |
| Revolutions per mile (km) | 538.66 (334.71) | 529.04 (328.73) | -9.62 (-5.98) -1.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.36 mph (32.77 km/h) |
| 25 mph (40.23 km/h) | 25.45 mph (40.97 km/h) |
| 30 mph (48.28 km/h) | 30.55 mph (49.16 km/h) |
| 35 mph (56.33 km/h) | 35.64 mph (57.35 km/h) |
| 40 mph (64.37 km/h) | 40.73 mph (65.54 km/h) |
| 45 mph (72.42 km/h) | 45.82 mph (73.74 km/h) |
| 50 mph (80.47 km/h) | 50.91 mph (81.93 km/h) |
| 55 mph (88.51 km/h) | 56 mph (90.12 km/h) |
| 60 mph (96.56 km/h) | 61.09 mph (98.32 km/h) |
| 65 mph (104.61 km/h) | 66.18 mph (106.51 km/h) |
| 70 mph (112.65 km/h) | 71.27 mph (114.7 km/h) |
| 75 mph (120.7 km/h) | 76.36 mph (122.9 km/h) |
| 80 mph (128.75 km/h) | 81.46 mph (131.09 km/h) |
| 85 mph (136.79 km/h) | 86.55 mph (139.28 km/h) |
| 90 mph (144.84 km/h) | 91.64 mph (147.48 km/h) |
| 95 mph (152.89 km/h) | 96.73 mph (155.67 km/h) |
| 100 mph (160.93 km/h) | 101.82 mph (163.86 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1346 | 1564 | 1684 | 1759 | 1839 | 1896 | 1959 | 2034 | 2137 | 2240 | 2355 | 2446 | 2612 | 2796 | 2939 | 3031 | 3082 | 3271 | 3535 | 4108 |
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