Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/70-18 | 235/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.99 (660.2) | 26.4 (670.6) | 0.41 (10.4) 1.6% |
| Width inches (mm) | 5.71 (145) | 9.25 (235) | 3.54 (90) 62.1% |
| Circum. inches (mm) | 81.66 (2074.08) | 82.94 (2106.75) | 1.29 (32.67) 1.6% |
| Sidewall Height inches (mm) | 4 (101.5) | 3.7 (94) | -0.3 (-7.5) -7.4% |
| Revolutions per mile (km) | 775.93 (482.14) | 763.9 (474.66) | -12.03 (-7.48) -1.6% |
235/40-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.32 mph (32.69 km/h) |
| 25 mph (40.23 km/h) | 25.39 mph (40.87 km/h) |
| 30 mph (48.28 km/h) | 30.47 mph (49.04 km/h) |
| 35 mph (56.33 km/h) | 35.55 mph (57.21 km/h) |
| 40 mph (64.37 km/h) | 40.63 mph (65.39 km/h) |
| 45 mph (72.42 km/h) | 45.71 mph (73.56 km/h) |
| 50 mph (80.47 km/h) | 50.79 mph (81.73 km/h) |
| 55 mph (88.51 km/h) | 55.87 mph (89.91 km/h) |
| 60 mph (96.56 km/h) | 60.95 mph (98.08 km/h) |
| 65 mph (104.61 km/h) | 66.02 mph (106.26 km/h) |
| 70 mph (112.65 km/h) | 71.1 mph (114.43 km/h) |
| 75 mph (120.7 km/h) | 76.18 mph (122.6 km/h) |
| 80 mph (128.75 km/h) | 81.26 mph (130.78 km/h) |
| 85 mph (136.79 km/h) | 86.34 mph (138.95 km/h) |
| 90 mph (144.84 km/h) | 91.42 mph (147.12 km/h) |
| 95 mph (152.89 km/h) | 96.5 mph (155.3 km/h) |
| 100 mph (160.93 km/h) | 101.58 mph (163.47 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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