Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/40-19 | 235/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.4 (670.6) | 25.33 (643.3) | -1.07 (-27.3) -4.1% |
| Width inches (mm) | 9.25 (235) | 9.25 (235) | 0 (0) 0% |
| Circum. inches (mm) | 82.94 (2106.75) | 79.57 (2020.99) | -3.38 (-85.77) -4.1% |
| Sidewall Height inches (mm) | 3.7 (94) | 4.16 (105.75) | 0.46 (11.75) 12.5% |
| Revolutions per mile (km) | 763.9 (474.66) | 796.32 (494.81) | 32.42 (20.14) 4.2% |
235/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.19 mph (30.88 km/h) |
| 25 mph (40.23 km/h) | 23.98 mph (38.6 km/h) |
| 30 mph (48.28 km/h) | 28.78 mph (46.31 km/h) |
| 35 mph (56.33 km/h) | 33.58 mph (54.03 km/h) |
| 40 mph (64.37 km/h) | 38.37 mph (61.75 km/h) |
| 45 mph (72.42 km/h) | 43.17 mph (69.47 km/h) |
| 50 mph (80.47 km/h) | 47.96 mph (77.19 km/h) |
| 55 mph (88.51 km/h) | 52.76 mph (84.91 km/h) |
| 60 mph (96.56 km/h) | 57.56 mph (92.63 km/h) |
| 65 mph (104.61 km/h) | 62.35 mph (100.35 km/h) |
| 70 mph (112.65 km/h) | 67.15 mph (108.07 km/h) |
| 75 mph (120.7 km/h) | 71.95 mph (115.79 km/h) |
| 80 mph (128.75 km/h) | 76.74 mph (123.51 km/h) |
| 85 mph (136.79 km/h) | 81.54 mph (131.23 km/h) |
| 90 mph (144.84 km/h) | 86.34 mph (138.94 km/h) |
| 95 mph (152.89 km/h) | 91.13 mph (146.66 km/h) |
| 100 mph (160.93 km/h) | 95.93 mph (154.38 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 2354 | 2535 | 2647 | 2768 | 2854 | 2949 | 3061 | 3216 | 3372 | 3544 | 3682 | 3932 | 4208 | 4424 | 4562 | 4639 | 4924 | 5321 | 6183 |
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