Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/35-20 | 235/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.48 (672.5) | 26.4 (670.6) | -0.07 (-1.9) -0.3% |
| Width inches (mm) | 9.25 (235) | 9.25 (235) | 0 (0) 0% |
| Circum. inches (mm) | 83.18 (2112.72) | 82.94 (2106.75) | -0.24 (-5.97) -0.3% |
| Sidewall Height inches (mm) | 3.24 (82.25) | 3.7 (94) | 0.46 (11.75) 14.3% |
| Revolutions per mile (km) | 761.74 (473.32) | 763.9 (474.66) | 2.16 (1.34) 0.3% |
235/40-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.94 mph (32.1 km/h) |
| 25 mph (40.23 km/h) | 24.93 mph (40.12 km/h) |
| 30 mph (48.28 km/h) | 29.92 mph (48.14 km/h) |
| 35 mph (56.33 km/h) | 34.9 mph (56.17 km/h) |
| 40 mph (64.37 km/h) | 39.89 mph (64.19 km/h) |
| 45 mph (72.42 km/h) | 44.87 mph (72.22 km/h) |
| 50 mph (80.47 km/h) | 49.86 mph (80.24 km/h) |
| 55 mph (88.51 km/h) | 54.84 mph (88.26 km/h) |
| 60 mph (96.56 km/h) | 59.83 mph (96.29 km/h) |
| 65 mph (104.61 km/h) | 64.82 mph (104.31 km/h) |
| 70 mph (112.65 km/h) | 69.8 mph (112.34 km/h) |
| 75 mph (120.7 km/h) | 74.79 mph (120.36 km/h) |
| 80 mph (128.75 km/h) | 79.77 mph (128.38 km/h) |
| 85 mph (136.79 km/h) | 84.76 mph (136.41 km/h) |
| 90 mph (144.84 km/h) | 89.75 mph (144.43 km/h) |
| 95 mph (152.89 km/h) | 94.73 mph (152.46 km/h) |
| 100 mph (160.93 km/h) | 99.72 mph (160.48 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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