Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/40-22 | 255/55-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.29 (794.8) | 31.04 (788.5) | -0.25 (-6.3) -0.8% |
| Width inches (mm) | 11.61 (295) | 10.04 (255) | -1.57 (-40) -13.6% |
| Circum. inches (mm) | 98.3 (2496.94) | 97.53 (2477.15) | -0.78 (-19.79) -0.8% |
| Sidewall Height inches (mm) | 4.65 (118) | 5.52 (140.25) | 0.88 (22.25) 18.9% |
| Revolutions per mile (km) | 644.53 (400.49) | 649.68 (403.69) | 5.15 (3.2) 0.8% |
255/55-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.84 mph (31.93 km/h) |
| 25 mph (40.23 km/h) | 24.8 mph (39.91 km/h) |
| 30 mph (48.28 km/h) | 29.76 mph (47.9 km/h) |
| 35 mph (56.33 km/h) | 34.72 mph (55.88 km/h) |
| 40 mph (64.37 km/h) | 39.68 mph (63.86 km/h) |
| 45 mph (72.42 km/h) | 44.64 mph (71.85 km/h) |
| 50 mph (80.47 km/h) | 49.6 mph (79.83 km/h) |
| 55 mph (88.51 km/h) | 54.56 mph (87.81 km/h) |
| 60 mph (96.56 km/h) | 59.52 mph (95.8 km/h) |
| 65 mph (104.61 km/h) | 64.48 mph (103.78 km/h) |
| 70 mph (112.65 km/h) | 69.45 mph (111.76 km/h) |
| 75 mph (120.7 km/h) | 74.41 mph (119.74 km/h) |
| 80 mph (128.75 km/h) | 79.37 mph (127.73 km/h) |
| 85 mph (136.79 km/h) | 84.33 mph (135.71 km/h) |
| 90 mph (144.84 km/h) | 89.29 mph (143.69 km/h) |
| 95 mph (152.89 km/h) | 94.25 mph (151.68 km/h) |
| 100 mph (160.93 km/h) | 99.21 mph (159.66 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1653 | 1921 | 2068 | 2160 | 2258 | 2329 | 2406 | 2498 | 2624 | 2751 | 2892 | 3004 | 3208 | 3433 | 3609 | 3722 | 3785 | 4017 | 4341 | 5044 |
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