Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/40-17 | 295/30-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.66 (651.8) | 26.97 (685) | 1.31 (33.2) 5.1% |
| Width inches (mm) | 10.83 (275) | 11.61 (295) | 0.79 (20) 7.3% |
| Circum. inches (mm) | 80.62 (2047.69) | 84.72 (2151.99) | 4.11 (104.3) 5.1% |
| Sidewall Height inches (mm) | 4.33 (110) | 3.48 (88.5) | -0.85 (-21.5) -19.5% |
| Revolutions per mile (km) | 785.93 (488.35) | 747.84 (464.69) | -38.09 (-23.67) -4.8% |
295/30-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.02 mph (33.83 km/h) |
| 25 mph (40.23 km/h) | 26.27 mph (42.28 km/h) |
| 30 mph (48.28 km/h) | 31.53 mph (50.74 km/h) |
| 35 mph (56.33 km/h) | 36.78 mph (59.2 km/h) |
| 40 mph (64.37 km/h) | 42.04 mph (67.65 km/h) |
| 45 mph (72.42 km/h) | 47.29 mph (76.11 km/h) |
| 50 mph (80.47 km/h) | 52.55 mph (84.57 km/h) |
| 55 mph (88.51 km/h) | 57.8 mph (93.02 km/h) |
| 60 mph (96.56 km/h) | 63.06 mph (101.48 km/h) |
| 65 mph (104.61 km/h) | 68.31 mph (109.94 km/h) |
| 70 mph (112.65 km/h) | 73.57 mph (118.39 km/h) |
| 75 mph (120.7 km/h) | 78.82 mph (126.85 km/h) |
| 80 mph (128.75 km/h) | 84.07 mph (135.31 km/h) |
| 85 mph (136.79 km/h) | 89.33 mph (143.76 km/h) |
| 90 mph (144.84 km/h) | 94.58 mph (152.22 km/h) |
| 95 mph (152.89 km/h) | 99.84 mph (160.68 km/h) |
| 100 mph (160.93 km/h) | 105.09 mph (169.13 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1903 | 2211 | 2381 | 2486 | 2600 | 2681 | 2770 | 2875 | 3021 | 3166 | 3328 | 3458 | 3693 | 3952 | 4154 | 4284 | 4357 | 4624 | 4997 | 5807 |
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