Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/40-17 | 305/30-26 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.14 (587.8) | 33.2 (843.4) | 10.06 (255.6) 43.5% |
| Width inches (mm) | 7.68 (195) | 12.01 (305) | 4.33 (110) 56.4% |
| Circum. inches (mm) | 72.7 (1846.63) | 104.32 (2649.62) | 31.61 (802.99) 43.5% |
| Sidewall Height inches (mm) | 3.07 (78) | 3.6 (91.5) | 0.53 (13.5) 17.3% |
| Revolutions per mile (km) | 871.5 (541.53) | 607.39 (377.41) | -264.12 (-164.11) -30.3% |
305/30-26 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 28.7 mph (46.18 km/h) |
| 25 mph (40.23 km/h) | 35.87 mph (57.73 km/h) |
| 30 mph (48.28 km/h) | 43.05 mph (69.27 km/h) |
| 35 mph (56.33 km/h) | 50.22 mph (80.82 km/h) |
| 40 mph (64.37 km/h) | 57.39 mph (92.37 km/h) |
| 45 mph (72.42 km/h) | 64.57 mph (103.91 km/h) |
| 50 mph (80.47 km/h) | 71.74 mph (115.46 km/h) |
| 55 mph (88.51 km/h) | 78.92 mph (127 km/h) |
| 60 mph (96.56 km/h) | 86.09 mph (138.55 km/h) |
| 65 mph (104.61 km/h) | 93.26 mph (150.1 km/h) |
| 70 mph (112.65 km/h) | 100.44 mph (161.64 km/h) |
| 75 mph (120.7 km/h) | 107.61 mph (173.19 km/h) |
| 80 mph (128.75 km/h) | 114.79 mph (184.73 km/h) |
| 85 mph (136.79 km/h) | 121.96 mph (196.28 km/h) |
| 90 mph (144.84 km/h) | 129.14 mph (207.82 km/h) |
| 95 mph (152.89 km/h) | 136.31 mph (219.37 km/h) |
| 100 mph (160.93 km/h) | 143.48 mph (230.92 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1546 | 1796 | 1934 | 2019 | 2111 | 2177 | 2249 | 2335 | 2453 | 2572 | 2703 | 2809 | 2999 | 3210 | 3374 | 3479 | 3539 | 3756 | 4058 | 4716 |
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