Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/35-18 | 305/35-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.68 (677.7) | 26.41 (670.7) | -0.28 (-7) -1% |
| Width inches (mm) | 12.4 (315) | 12.01 (305) | -0.39 (-10) -3.2% |
| Circum. inches (mm) | 83.82 (2129.06) | 82.96 (2107.07) | -0.87 (-21.99) -1% |
| Sidewall Height inches (mm) | 4.34 (110.25) | 4.2 (106.75) | -0.14 (-3.5) -3.2% |
| Revolutions per mile (km) | 755.9 (469.69) | 763.78 (474.59) | 7.89 (4.9) 1% |
305/35-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.79 mph (31.85 km/h) |
| 25 mph (40.23 km/h) | 24.74 mph (39.82 km/h) |
| 30 mph (48.28 km/h) | 29.69 mph (47.78 km/h) |
| 35 mph (56.33 km/h) | 34.64 mph (55.75 km/h) |
| 40 mph (64.37 km/h) | 39.59 mph (63.71 km/h) |
| 45 mph (72.42 km/h) | 44.54 mph (71.67 km/h) |
| 50 mph (80.47 km/h) | 49.48 mph (79.64 km/h) |
| 55 mph (88.51 km/h) | 54.43 mph (87.6 km/h) |
| 60 mph (96.56 km/h) | 59.38 mph (95.56 km/h) |
| 65 mph (104.61 km/h) | 64.33 mph (103.53 km/h) |
| 70 mph (112.65 km/h) | 69.28 mph (111.49 km/h) |
| 75 mph (120.7 km/h) | 74.23 mph (119.45 km/h) |
| 80 mph (128.75 km/h) | 79.17 mph (127.42 km/h) |
| 85 mph (136.79 km/h) | 84.12 mph (135.38 km/h) |
| 90 mph (144.84 km/h) | 89.07 mph (143.35 km/h) |
| 95 mph (152.89 km/h) | 94.02 mph (151.31 km/h) |
| 100 mph (160.93 km/h) | 98.97 mph (159.27 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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