Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/30-21 | 295/30-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.97 (710.4) | 26.97 (685) | -1 (-25.4) -3.6% |
| Width inches (mm) | 11.61 (295) | 11.61 (295) | 0 (0) 0% |
| Circum. inches (mm) | 87.87 (2231.79) | 84.72 (2151.99) | -3.14 (-79.8) -3.6% |
| Sidewall Height inches (mm) | 3.48 (88.5) | 3.48 (88.5) | 0 (0) 0% |
| Revolutions per mile (km) | 721.1 (448.07) | 747.84 (464.69) | 26.74 (16.61) 3.7% |
295/30-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.28 mph (31.04 km/h) |
| 25 mph (40.23 km/h) | 24.11 mph (38.8 km/h) |
| 30 mph (48.28 km/h) | 28.93 mph (46.55 km/h) |
| 35 mph (56.33 km/h) | 33.75 mph (54.31 km/h) |
| 40 mph (64.37 km/h) | 38.57 mph (62.07 km/h) |
| 45 mph (72.42 km/h) | 43.39 mph (69.83 km/h) |
| 50 mph (80.47 km/h) | 48.21 mph (77.59 km/h) |
| 55 mph (88.51 km/h) | 53.03 mph (85.35 km/h) |
| 60 mph (96.56 km/h) | 57.85 mph (93.11 km/h) |
| 65 mph (104.61 km/h) | 62.68 mph (100.87 km/h) |
| 70 mph (112.65 km/h) | 67.5 mph (108.63 km/h) |
| 75 mph (120.7 km/h) | 72.32 mph (116.39 km/h) |
| 80 mph (128.75 km/h) | 77.14 mph (124.14 km/h) |
| 85 mph (136.79 km/h) | 81.96 mph (131.9 km/h) |
| 90 mph (144.84 km/h) | 86.78 mph (139.66 km/h) |
| 95 mph (152.89 km/h) | 91.6 mph (147.42 km/h) |
| 100 mph (160.93 km/h) | 96.42 mph (155.18 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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