Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/50-15 | 255/50-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.61 (676) | 30.04 (763) | 3.43 (87) 12.9% |
| Width inches (mm) | 11.61 (295) | 10.04 (255) | -1.57 (-40) -13.6% |
| Circum. inches (mm) | 83.61 (2123.72) | 94.37 (2397.04) | 10.76 (273.32) 12.9% |
| Sidewall Height inches (mm) | 5.81 (147.5) | 5.02 (127.5) | -0.79 (-20) -13.6% |
| Revolutions per mile (km) | 757.8 (470.87) | 671.39 (417.18) | -86.41 (-53.69) -11.4% |
255/50-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.57 mph (36.33 km/h) |
| 25 mph (40.23 km/h) | 28.22 mph (45.41 km/h) |
| 30 mph (48.28 km/h) | 33.86 mph (54.49 km/h) |
| 35 mph (56.33 km/h) | 39.5 mph (63.58 km/h) |
| 40 mph (64.37 km/h) | 45.15 mph (72.66 km/h) |
| 45 mph (72.42 km/h) | 50.79 mph (81.74 km/h) |
| 50 mph (80.47 km/h) | 56.43 mph (90.82 km/h) |
| 55 mph (88.51 km/h) | 62.08 mph (99.91 km/h) |
| 60 mph (96.56 km/h) | 67.72 mph (108.99 km/h) |
| 65 mph (104.61 km/h) | 73.37 mph (118.07 km/h) |
| 70 mph (112.65 km/h) | 79.01 mph (127.15 km/h) |
| 75 mph (120.7 km/h) | 84.65 mph (136.24 km/h) |
| 80 mph (128.75 km/h) | 90.3 mph (145.32 km/h) |
| 85 mph (136.79 km/h) | 95.94 mph (154.4 km/h) |
| 90 mph (144.84 km/h) | 101.58 mph (163.48 km/h) |
| 95 mph (152.89 km/h) | 107.23 mph (172.56 km/h) |
| 100 mph (160.93 km/h) | 112.87 mph (181.65 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1709 | 1985 | 2138 | 2232 | 2334 | 2407 | 2486 | 2581 | 2712 | 2843 | 2988 | 3104 | 3315 | 3548 | 3730 | 3846 | 3912 | 4151 | 4486 | 5213 |
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