Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 200/50-18 | 275/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.87 (657.2) | 33.16 (842.2) | 7.28 (185) 28.1% |
| Width inches (mm) | 7.87 (200) | 10.83 (275) | 2.95 (75) 37.5% |
| Circum. inches (mm) | 81.29 (2064.65) | 104.17 (2645.85) | 22.88 (581.19) 28.1% |
| Sidewall Height inches (mm) | 3.94 (100) | 7.58 (192.5) | 3.64 (92.5) 92.5% |
| Revolutions per mile (km) | 779.47 (484.34) | 608.25 (377.95) | -171.22 (-106.39) -22% |
275/70-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.63 mph (41.25 km/h) |
| 25 mph (40.23 km/h) | 32.04 mph (51.56 km/h) |
| 30 mph (48.28 km/h) | 38.44 mph (61.87 km/h) |
| 35 mph (56.33 km/h) | 44.85 mph (72.18 km/h) |
| 40 mph (64.37 km/h) | 51.26 mph (82.49 km/h) |
| 45 mph (72.42 km/h) | 57.67 mph (92.81 km/h) |
| 50 mph (80.47 km/h) | 64.07 mph (103.12 km/h) |
| 55 mph (88.51 km/h) | 70.48 mph (113.43 km/h) |
| 60 mph (96.56 km/h) | 76.89 mph (123.74 km/h) |
| 65 mph (104.61 km/h) | 83.3 mph (134.05 km/h) |
| 70 mph (112.65 km/h) | 89.7 mph (144.37 km/h) |
| 75 mph (120.7 km/h) | 96.11 mph (154.68 km/h) |
| 80 mph (128.75 km/h) | 102.52 mph (164.99 km/h) |
| 85 mph (136.79 km/h) | 108.93 mph (175.3 km/h) |
| 90 mph (144.84 km/h) | 115.33 mph (185.61 km/h) |
| 95 mph (152.89 km/h) | 121.74 mph (195.93 km/h) |
| 100 mph (160.93 km/h) | 128.15 mph (206.24 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1548 | 1798 | 1937 | 2022 | 2114 | 2180 | 2253 | 2338 | 2457 | 2575 | 2707 | 2813 | 3004 | 3214 | 3379 | 3484 | 3544 | 3761 | 4064 | 4723 |
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