Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 345/35-15 | 325/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.51 (622.5) | 27.8 (706) | 3.29 (83.5) 13.4% |
| Width inches (mm) | 13.58 (345) | 12.8 (325) | -0.79 (-20) -5.8% |
| Circum. inches (mm) | 76.99 (1955.64) | 87.32 (2217.96) | 10.33 (262.32) 13.4% |
| Sidewall Height inches (mm) | 4.75 (120.75) | 6.4 (162.5) | 1.64 (41.75) 34.6% |
| Revolutions per mile (km) | 822.92 (511.34) | 725.6 (450.86) | -97.33 (-60.48) -11.8% |
325/50-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.68 mph (36.5 km/h) |
| 25 mph (40.23 km/h) | 28.35 mph (45.63 km/h) |
| 30 mph (48.28 km/h) | 34.02 mph (54.76 km/h) |
| 35 mph (56.33 km/h) | 39.69 mph (63.88 km/h) |
| 40 mph (64.37 km/h) | 45.37 mph (73.01 km/h) |
| 45 mph (72.42 km/h) | 51.04 mph (82.13 km/h) |
| 50 mph (80.47 km/h) | 56.71 mph (91.26 km/h) |
| 55 mph (88.51 km/h) | 62.38 mph (100.39 km/h) |
| 60 mph (96.56 km/h) | 68.05 mph (109.51 km/h) |
| 65 mph (104.61 km/h) | 73.72 mph (118.64 km/h) |
| 70 mph (112.65 km/h) | 79.39 mph (127.77 km/h) |
| 75 mph (120.7 km/h) | 85.06 mph (136.89 km/h) |
| 80 mph (128.75 km/h) | 90.73 mph (146.02 km/h) |
| 85 mph (136.79 km/h) | 96.4 mph (155.14 km/h) |
| 90 mph (144.84 km/h) | 102.07 mph (164.27 km/h) |
| 95 mph (152.89 km/h) | 107.74 mph (173.4 km/h) |
| 100 mph (160.93 km/h) | 113.41 mph (182.52 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1847 | 2145 | 2310 | 2412 | 2522 | 2601 | 2687 | 2789 | 2931 | 3072 | 3229 | 3355 | 3583 | 3834 | 4031 | 4157 | 4227 | 4487 | 4848 | 5634 |
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