Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/30-20 | 325/25-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.97 (685) | 26.4 (670.5) | -0.57 (-14.5) -2.1% |
| Width inches (mm) | 11.61 (295) | 12.8 (325) | 1.18 (30) 10.2% |
| Circum. inches (mm) | 84.72 (2151.99) | 82.93 (2106.44) | -1.79 (-45.55) -2.1% |
| Sidewall Height inches (mm) | 3.48 (88.5) | 3.2 (81.25) | -0.29 (-7.25) -8.2% |
| Revolutions per mile (km) | 747.84 (464.69) | 764.01 (474.73) | 16.17 (10.05) 2.2% |
325/25-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.58 mph (31.51 km/h) |
| 25 mph (40.23 km/h) | 24.47 mph (39.38 km/h) |
| 30 mph (48.28 km/h) | 29.36 mph (47.26 km/h) |
| 35 mph (56.33 km/h) | 34.26 mph (55.13 km/h) |
| 40 mph (64.37 km/h) | 39.15 mph (63.01 km/h) |
| 45 mph (72.42 km/h) | 44.05 mph (70.89 km/h) |
| 50 mph (80.47 km/h) | 48.94 mph (78.76 km/h) |
| 55 mph (88.51 km/h) | 53.84 mph (86.64 km/h) |
| 60 mph (96.56 km/h) | 58.73 mph (94.52 km/h) |
| 65 mph (104.61 km/h) | 63.62 mph (102.39 km/h) |
| 70 mph (112.65 km/h) | 68.52 mph (110.27 km/h) |
| 75 mph (120.7 km/h) | 73.41 mph (118.15 km/h) |
| 80 mph (128.75 km/h) | 78.31 mph (126.02 km/h) |
| 85 mph (136.79 km/h) | 83.2 mph (133.9 km/h) |
| 90 mph (144.84 km/h) | 88.09 mph (141.78 km/h) |
| 95 mph (152.89 km/h) | 92.99 mph (149.65 km/h) |
| 100 mph (160.93 km/h) | 97.88 mph (157.53 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1944 | 2259 | 2432 | 2540 | 2656 | 2739 | 2830 | 2937 | 3086 | 3235 | 3400 | 3533 | 3773 | 4037 | 4244 | 4377 | 4451 | 4724 | 5105 | 5932 |
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