Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 335/30-18 | 305/35-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.91 (658.2) | 26.41 (670.7) | 0.49 (12.5) 1.9% |
| Width inches (mm) | 13.19 (335) | 12.01 (305) | -1.18 (-30) -9% |
| Circum. inches (mm) | 81.41 (2067.8) | 82.96 (2107.07) | 1.55 (39.27) 1.9% |
| Sidewall Height inches (mm) | 3.96 (100.5) | 4.2 (106.75) | 0.25 (6.25) 6.2% |
| Revolutions per mile (km) | 778.29 (483.61) | 763.78 (474.59) | -14.51 (-9.01) -1.9% |
305/35-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.38 mph (32.8 km/h) |
| 25 mph (40.23 km/h) | 25.47 mph (41 km/h) |
| 30 mph (48.28 km/h) | 30.57 mph (49.2 km/h) |
| 35 mph (56.33 km/h) | 35.66 mph (57.4 km/h) |
| 40 mph (64.37 km/h) | 40.76 mph (65.6 km/h) |
| 45 mph (72.42 km/h) | 45.85 mph (73.8 km/h) |
| 50 mph (80.47 km/h) | 50.95 mph (82 km/h) |
| 55 mph (88.51 km/h) | 56.04 mph (90.2 km/h) |
| 60 mph (96.56 km/h) | 61.14 mph (98.39 km/h) |
| 65 mph (104.61 km/h) | 66.23 mph (106.59 km/h) |
| 70 mph (112.65 km/h) | 71.33 mph (114.79 km/h) |
| 75 mph (120.7 km/h) | 76.42 mph (122.99 km/h) |
| 80 mph (128.75 km/h) | 81.52 mph (131.19 km/h) |
| 85 mph (136.79 km/h) | 86.61 mph (139.39 km/h) |
| 90 mph (144.84 km/h) | 91.71 mph (147.59 km/h) |
| 95 mph (152.89 km/h) | 96.8 mph (155.79 km/h) |
| 100 mph (160.93 km/h) | 101.9 mph (163.99 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1944 | 2258 | 2432 | 2539 | 2655 | 2738 | 2829 | 2936 | 3085 | 3234 | 3399 | 3532 | 3772 | 4036 | 4243 | 4375 | 4450 | 4723 | 5103 | 5930 |
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