Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/55-16 | 255/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.88 (631.9) | 27.03 (686.6) | 2.15 (54.7) 8.7% |
| Width inches (mm) | 8.07 (205) | 10.04 (255) | 1.97 (50) 24.4% |
| Circum. inches (mm) | 78.16 (1985.17) | 84.92 (2157.02) | 6.77 (171.85) 8.7% |
| Sidewall Height inches (mm) | 4.44 (112.75) | 4.02 (102) | -0.42 (-10.75) -9.5% |
| Revolutions per mile (km) | 810.68 (503.73) | 746.1 (463.6) | -64.59 (-40.13) -8% |
255/40-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.73 mph (34.97 km/h) |
| 25 mph (40.23 km/h) | 27.16 mph (43.72 km/h) |
| 30 mph (48.28 km/h) | 32.6 mph (52.46 km/h) |
| 35 mph (56.33 km/h) | 38.03 mph (61.2 km/h) |
| 40 mph (64.37 km/h) | 43.46 mph (69.95 km/h) |
| 45 mph (72.42 km/h) | 48.9 mph (78.69 km/h) |
| 50 mph (80.47 km/h) | 54.33 mph (87.43 km/h) |
| 55 mph (88.51 km/h) | 59.76 mph (96.18 km/h) |
| 60 mph (96.56 km/h) | 65.19 mph (104.92 km/h) |
| 65 mph (104.61 km/h) | 70.63 mph (113.66 km/h) |
| 70 mph (112.65 km/h) | 76.06 mph (122.41 km/h) |
| 75 mph (120.7 km/h) | 81.49 mph (131.15 km/h) |
| 80 mph (128.75 km/h) | 86.93 mph (139.89 km/h) |
| 85 mph (136.79 km/h) | 92.36 mph (148.64 km/h) |
| 90 mph (144.84 km/h) | 97.79 mph (157.38 km/h) |
| 95 mph (152.89 km/h) | 103.22 mph (166.12 km/h) |
| 100 mph (160.93 km/h) | 108.66 mph (174.87 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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