Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/40-18 | 305/35-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.29 (693.2) | 26.41 (670.7) | -0.89 (-22.5) -3.2% |
| Width inches (mm) | 11.61 (295) | 12.01 (305) | 0.39 (10) 3.4% |
| Circum. inches (mm) | 85.74 (2177.75) | 82.96 (2107.07) | -2.78 (-70.69) -3.2% |
| Sidewall Height inches (mm) | 4.65 (118) | 4.2 (106.75) | -0.44 (-11.25) -9.5% |
| Revolutions per mile (km) | 738.99 (459.19) | 763.78 (474.59) | 24.79 (15.4) 3.4% |
305/35-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.35 mph (31.14 km/h) |
| 25 mph (40.23 km/h) | 24.19 mph (38.93 km/h) |
| 30 mph (48.28 km/h) | 29.03 mph (46.71 km/h) |
| 35 mph (56.33 km/h) | 33.86 mph (54.5 km/h) |
| 40 mph (64.37 km/h) | 38.7 mph (62.28 km/h) |
| 45 mph (72.42 km/h) | 43.54 mph (70.07 km/h) |
| 50 mph (80.47 km/h) | 48.38 mph (77.86 km/h) |
| 55 mph (88.51 km/h) | 53.21 mph (85.64 km/h) |
| 60 mph (96.56 km/h) | 58.05 mph (93.43 km/h) |
| 65 mph (104.61 km/h) | 62.89 mph (101.21 km/h) |
| 70 mph (112.65 km/h) | 67.73 mph (109 km/h) |
| 75 mph (120.7 km/h) | 72.57 mph (116.78 km/h) |
| 80 mph (128.75 km/h) | 77.4 mph (124.57 km/h) |
| 85 mph (136.79 km/h) | 82.24 mph (132.35 km/h) |
| 90 mph (144.84 km/h) | 87.08 mph (140.14 km/h) |
| 95 mph (152.89 km/h) | 91.92 mph (147.93 km/h) |
| 100 mph (160.93 km/h) | 96.75 mph (155.71 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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