Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/30-26 | 315/40-26 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.2 (843.4) | 35.92 (912.4) | 2.72 (69) 8.2% |
| Width inches (mm) | 12.01 (305) | 12.4 (315) | 0.39 (10) 3.3% |
| Circum. inches (mm) | 104.32 (2649.62) | 112.85 (2866.39) | 8.53 (216.77) 8.2% |
| Sidewall Height inches (mm) | 3.6 (91.5) | 4.96 (126) | 1.36 (34.5) 37.7% |
| Revolutions per mile (km) | 607.39 (377.41) | 561.45 (348.87) | -45.93 (-28.54) -7.6% |
315/40-26 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.64 mph (34.82 km/h) |
| 25 mph (40.23 km/h) | 27.05 mph (43.53 km/h) |
| 30 mph (48.28 km/h) | 32.45 mph (52.23 km/h) |
| 35 mph (56.33 km/h) | 37.86 mph (60.94 km/h) |
| 40 mph (64.37 km/h) | 43.27 mph (69.64 km/h) |
| 45 mph (72.42 km/h) | 48.68 mph (78.35 km/h) |
| 50 mph (80.47 km/h) | 54.09 mph (87.05 km/h) |
| 55 mph (88.51 km/h) | 59.5 mph (95.76 km/h) |
| 60 mph (96.56 km/h) | 64.91 mph (104.46 km/h) |
| 65 mph (104.61 km/h) | 70.32 mph (113.17 km/h) |
| 70 mph (112.65 km/h) | 75.73 mph (121.87 km/h) |
| 75 mph (120.7 km/h) | 81.14 mph (130.58 km/h) |
| 80 mph (128.75 km/h) | 86.54 mph (139.28 km/h) |
| 85 mph (136.79 km/h) | 91.95 mph (147.99 km/h) |
| 90 mph (144.84 km/h) | 97.36 mph (156.69 km/h) |
| 95 mph (152.89 km/h) | 102.77 mph (165.4 km/h) |
| 100 mph (160.93 km/h) | 108.18 mph (174.1 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1429 | 1660 | 1788 | 1867 | 1952 | 2012 | 2079 | 2158 | 2268 | 2377 | 2499 | 2596 | 2772 | 2967 | 3119 | 3216 | 3271 | 3472 | 3751 | 4359 |
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