Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/40-17 | 235/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.09 (611.8) | 25.33 (643.3) | 1.24 (31.5) 5.1% |
| Width inches (mm) | 8.86 (225) | 9.25 (235) | 0.39 (10) 4.4% |
| Circum. inches (mm) | 75.67 (1922.03) | 79.57 (2020.99) | 3.9 (98.96) 5.1% |
| Sidewall Height inches (mm) | 3.54 (90) | 4.16 (105.75) | 0.62 (15.75) 17.5% |
| Revolutions per mile (km) | 837.32 (520.28) | 796.32 (494.81) | -41 (-25.48) -4.9% |
235/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.03 mph (33.84 km/h) |
| 25 mph (40.23 km/h) | 26.29 mph (42.31 km/h) |
| 30 mph (48.28 km/h) | 31.54 mph (50.77 km/h) |
| 35 mph (56.33 km/h) | 36.8 mph (59.23 km/h) |
| 40 mph (64.37 km/h) | 42.06 mph (67.69 km/h) |
| 45 mph (72.42 km/h) | 47.32 mph (76.15 km/h) |
| 50 mph (80.47 km/h) | 52.57 mph (84.61 km/h) |
| 55 mph (88.51 km/h) | 57.83 mph (93.07 km/h) |
| 60 mph (96.56 km/h) | 63.09 mph (101.53 km/h) |
| 65 mph (104.61 km/h) | 68.35 mph (109.99 km/h) |
| 70 mph (112.65 km/h) | 73.6 mph (118.45 km/h) |
| 75 mph (120.7 km/h) | 78.86 mph (126.92 km/h) |
| 80 mph (128.75 km/h) | 84.12 mph (135.38 km/h) |
| 85 mph (136.79 km/h) | 89.38 mph (143.84 km/h) |
| 90 mph (144.84 km/h) | 94.63 mph (152.3 km/h) |
| 95 mph (152.89 km/h) | 99.89 mph (160.76 km/h) |
| 100 mph (160.93 km/h) | 105.15 mph (169.22 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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