Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/30-26 | 255/30-30 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.2 (843.4) | 36.02 (915) | 2.82 (71.6) 8.5% |
| Width inches (mm) | 12.01 (305) | 10.04 (255) | -1.97 (-50) -16.4% |
| Circum. inches (mm) | 104.32 (2649.62) | 113.17 (2874.56) | 8.86 (224.94) 8.5% |
| Sidewall Height inches (mm) | 3.6 (91.5) | 3.01 (76.5) | -0.59 (-15) -16.4% |
| Revolutions per mile (km) | 607.39 (377.41) | 559.86 (347.88) | -47.53 (-29.53) -7.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.7 mph (34.92 km/h) |
| 25 mph (40.23 km/h) | 27.12 mph (43.65 km/h) |
| 30 mph (48.28 km/h) | 32.55 mph (52.38 km/h) |
| 35 mph (56.33 km/h) | 37.97 mph (61.11 km/h) |
| 40 mph (64.37 km/h) | 43.4 mph (69.84 km/h) |
| 45 mph (72.42 km/h) | 48.82 mph (78.57 km/h) |
| 50 mph (80.47 km/h) | 54.24 mph (87.3 km/h) |
| 55 mph (88.51 km/h) | 59.67 mph (96.03 km/h) |
| 60 mph (96.56 km/h) | 65.09 mph (104.76 km/h) |
| 65 mph (104.61 km/h) | 70.52 mph (113.49 km/h) |
| 70 mph (112.65 km/h) | 75.94 mph (122.22 km/h) |
| 75 mph (120.7 km/h) | 81.37 mph (130.95 km/h) |
| 80 mph (128.75 km/h) | 86.79 mph (139.68 km/h) |
| 85 mph (136.79 km/h) | 92.22 mph (148.41 km/h) |
| 90 mph (144.84 km/h) | 97.64 mph (157.14 km/h) |
| 95 mph (152.89 km/h) | 103.06 mph (165.87 km/h) |
| 100 mph (160.93 km/h) | 108.49 mph (174.6 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1425 | 1655 | 1782 | 1861 | 1946 | 2007 | 2073 | 2152 | 2261 | 2371 | 2492 | 2589 | 2765 | 2959 | 3110 | 3207 | 3262 | 3462 | 3741 | 4347 |
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