Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/85-18 | 255/45-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.37 (720.7) | 28.04 (712.1) | -0.34 (-8.6) -1.2% |
| Width inches (mm) | 6.1 (155) | 10.04 (255) | 3.94 (100) 64.5% |
| Circum. inches (mm) | 89.14 (2264.15) | 88.08 (2237.13) | -1.06 (-27.02) -1.2% |
| Sidewall Height inches (mm) | 5.19 (131.75) | 4.52 (114.75) | -0.67 (-17) -12.9% |
| Revolutions per mile (km) | 710.8 (441.67) | 719.38 (447) | 8.58 (5.33) 1.2% |
255/45-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.76 mph (31.8 km/h) |
| 25 mph (40.23 km/h) | 24.7 mph (39.75 km/h) |
| 30 mph (48.28 km/h) | 29.64 mph (47.7 km/h) |
| 35 mph (56.33 km/h) | 34.58 mph (55.66 km/h) |
| 40 mph (64.37 km/h) | 39.52 mph (63.61 km/h) |
| 45 mph (72.42 km/h) | 44.46 mph (71.56 km/h) |
| 50 mph (80.47 km/h) | 49.4 mph (79.51 km/h) |
| 55 mph (88.51 km/h) | 54.34 mph (87.46 km/h) |
| 60 mph (96.56 km/h) | 59.28 mph (95.41 km/h) |
| 65 mph (104.61 km/h) | 64.22 mph (103.36 km/h) |
| 70 mph (112.65 km/h) | 69.16 mph (111.31 km/h) |
| 75 mph (120.7 km/h) | 74.11 mph (119.26 km/h) |
| 80 mph (128.75 km/h) | 79.05 mph (127.21 km/h) |
| 85 mph (136.79 km/h) | 83.99 mph (135.16 km/h) |
| 90 mph (144.84 km/h) | 88.93 mph (143.11 km/h) |
| 95 mph (152.89 km/h) | 93.87 mph (151.06 km/h) |
| 100 mph (160.93 km/h) | 98.81 mph (159.01 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1831 | 2127 | 2290 | 2392 | 2501 | 2579 | 2664 | 2766 | 2906 | 3046 | 3202 | 3326 | 3552 | 3802 | 3996 | 4121 | 4191 | 4448 | 4807 | 5586 |
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