Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/45-18 | 305/35-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.81 (731.7) | 26.41 (670.7) | -2.4 (-61) -8.3% |
| Width inches (mm) | 12.01 (305) | 12.01 (305) | 0 (0) 0% |
| Circum. inches (mm) | 90.5 (2298.7) | 82.96 (2107.07) | -7.54 (-191.64) -8.3% |
| Sidewall Height inches (mm) | 5.4 (137.25) | 4.2 (106.75) | -1.2 (-30.5) -22.2% |
| Revolutions per mile (km) | 700.11 (435.03) | 763.78 (474.59) | 63.67 (39.57) 9.1% |
305/35-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.33 mph (29.5 km/h) |
| 25 mph (40.23 km/h) | 22.92 mph (36.88 km/h) |
| 30 mph (48.28 km/h) | 27.5 mph (44.26 km/h) |
| 35 mph (56.33 km/h) | 32.08 mph (51.63 km/h) |
| 40 mph (64.37 km/h) | 36.67 mph (59.01 km/h) |
| 45 mph (72.42 km/h) | 41.25 mph (66.38 km/h) |
| 50 mph (80.47 km/h) | 45.83 mph (73.76 km/h) |
| 55 mph (88.51 km/h) | 50.41 mph (81.13 km/h) |
| 60 mph (96.56 km/h) | 55 mph (88.51 km/h) |
| 65 mph (104.61 km/h) | 59.58 mph (95.89 km/h) |
| 70 mph (112.65 km/h) | 64.16 mph (103.26 km/h) |
| 75 mph (120.7 km/h) | 68.75 mph (110.64 km/h) |
| 80 mph (128.75 km/h) | 73.33 mph (118.01 km/h) |
| 85 mph (136.79 km/h) | 77.91 mph (125.39 km/h) |
| 90 mph (144.84 km/h) | 82.5 mph (132.77 km/h) |
| 95 mph (152.89 km/h) | 87.08 mph (140.14 km/h) |
| 100 mph (160.93 km/h) | 91.66 mph (147.52 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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