Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 345/30-19 | 325/30-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.15 (689.6) | 26.68 (677.6) | -0.47 (-12) -1.7% |
| Width inches (mm) | 13.58 (345) | 12.8 (325) | -0.79 (-20) -5.8% |
| Circum. inches (mm) | 85.29 (2166.44) | 83.81 (2128.74) | -1.48 (-37.7) -1.7% |
| Sidewall Height inches (mm) | 4.07 (103.5) | 3.84 (97.5) | -0.24 (-6) -5.8% |
| Revolutions per mile (km) | 742.85 (461.59) | 756.01 (469.76) | 13.16 (8.17) 1.8% |
325/30-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.65 mph (31.63 km/h) |
| 25 mph (40.23 km/h) | 24.56 mph (39.53 km/h) |
| 30 mph (48.28 km/h) | 29.48 mph (47.44 km/h) |
| 35 mph (56.33 km/h) | 34.39 mph (55.35 km/h) |
| 40 mph (64.37 km/h) | 39.3 mph (63.25 km/h) |
| 45 mph (72.42 km/h) | 44.22 mph (71.16 km/h) |
| 50 mph (80.47 km/h) | 49.13 mph (79.07 km/h) |
| 55 mph (88.51 km/h) | 54.04 mph (86.97 km/h) |
| 60 mph (96.56 km/h) | 58.96 mph (94.88 km/h) |
| 65 mph (104.61 km/h) | 63.87 mph (102.79 km/h) |
| 70 mph (112.65 km/h) | 68.78 mph (110.69 km/h) |
| 75 mph (120.7 km/h) | 73.69 mph (118.6 km/h) |
| 80 mph (128.75 km/h) | 78.61 mph (126.51 km/h) |
| 85 mph (136.79 km/h) | 83.52 mph (134.41 km/h) |
| 90 mph (144.84 km/h) | 88.43 mph (142.32 km/h) |
| 95 mph (152.89 km/h) | 93.35 mph (150.23 km/h) |
| 100 mph (160.93 km/h) | 98.26 mph (158.13 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1924 | 2235 | 2407 | 2513 | 2628 | 2710 | 2800 | 2906 | 3054 | 3201 | 3365 | 3496 | 3733 | 3995 | 4200 | 4331 | 4404 | 4675 | 5051 | 5870 |
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