Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/40-19 | 255/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.4 (670.6) | 27.03 (686.6) | 0.63 (16) 2.4% |
| Width inches (mm) | 9.25 (235) | 10.04 (255) | 0.79 (20) 8.5% |
| Circum. inches (mm) | 82.94 (2106.75) | 84.92 (2157.02) | 1.98 (50.27) 2.4% |
| Sidewall Height inches (mm) | 3.7 (94) | 4.02 (102) | 0.31 (8) 8.5% |
| Revolutions per mile (km) | 763.9 (474.66) | 746.1 (463.6) | -17.8 (-11.06) -2.3% |
255/40-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.48 mph (32.95 km/h) |
| 25 mph (40.23 km/h) | 25.6 mph (41.19 km/h) |
| 30 mph (48.28 km/h) | 30.72 mph (49.43 km/h) |
| 35 mph (56.33 km/h) | 35.84 mph (57.67 km/h) |
| 40 mph (64.37 km/h) | 40.95 mph (65.91 km/h) |
| 45 mph (72.42 km/h) | 46.07 mph (74.15 km/h) |
| 50 mph (80.47 km/h) | 51.19 mph (82.39 km/h) |
| 55 mph (88.51 km/h) | 56.31 mph (90.63 km/h) |
| 60 mph (96.56 km/h) | 61.43 mph (98.86 km/h) |
| 65 mph (104.61 km/h) | 66.55 mph (107.1 km/h) |
| 70 mph (112.65 km/h) | 71.67 mph (115.34 km/h) |
| 75 mph (120.7 km/h) | 76.79 mph (123.58 km/h) |
| 80 mph (128.75 km/h) | 81.91 mph (131.82 km/h) |
| 85 mph (136.79 km/h) | 87.03 mph (140.06 km/h) |
| 90 mph (144.84 km/h) | 92.15 mph (148.3 km/h) |
| 95 mph (152.89 km/h) | 97.27 mph (156.54 km/h) |
| 100 mph (160.93 km/h) | 102.39 mph (164.77 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1899 | 2206 | 2375 | 2480 | 2594 | 2674 | 2763 | 2868 | 3014 | 3159 | 3321 | 3450 | 3684 | 3943 | 4145 | 4274 | 4347 | 4613 | 4985 | 5793 |
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