Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/70-18 | 235/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.54 (674.2) | 26.4 (670.6) | -0.14 (-3.6) -0.5% |
| Width inches (mm) | 6.1 (155) | 9.25 (235) | 3.15 (80) 51.6% |
| Circum. inches (mm) | 83.39 (2118.06) | 82.94 (2106.75) | -0.45 (-11.31) -0.5% |
| Sidewall Height inches (mm) | 4.27 (108.5) | 3.7 (94) | -0.57 (-14.5) -13.4% |
| Revolutions per mile (km) | 759.82 (472.13) | 763.9 (474.66) | 4.08 (2.53) 0.5% |
235/40-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.89 mph (32.02 km/h) |
| 25 mph (40.23 km/h) | 24.87 mph (40.02 km/h) |
| 30 mph (48.28 km/h) | 29.84 mph (48.02 km/h) |
| 35 mph (56.33 km/h) | 34.81 mph (56.03 km/h) |
| 40 mph (64.37 km/h) | 39.79 mph (64.03 km/h) |
| 45 mph (72.42 km/h) | 44.76 mph (72.03 km/h) |
| 50 mph (80.47 km/h) | 49.73 mph (80.04 km/h) |
| 55 mph (88.51 km/h) | 54.71 mph (88.04 km/h) |
| 60 mph (96.56 km/h) | 59.68 mph (96.05 km/h) |
| 65 mph (104.61 km/h) | 64.65 mph (104.05 km/h) |
| 70 mph (112.65 km/h) | 69.63 mph (112.05 km/h) |
| 75 mph (120.7 km/h) | 74.6 mph (120.06 km/h) |
| 80 mph (128.75 km/h) | 79.57 mph (128.06 km/h) |
| 85 mph (136.79 km/h) | 84.55 mph (136.06 km/h) |
| 90 mph (144.84 km/h) | 89.52 mph (144.07 km/h) |
| 95 mph (152.89 km/h) | 94.49 mph (152.07 km/h) |
| 100 mph (160.93 km/h) | 99.47 mph (160.08 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 | 2540 | 2655 | 2738 | 2829 | 2937 | 3086 | 3234 | 3400 | 3532 | 3772 | 4037 | 4244 | 4376 | 4450 | 4723 | 5104 | 5931 |
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