Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/65-15 | 165/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.93 (582.5) | 25.39 (645) | 2.46 (62.5) 10.7% |
| Width inches (mm) | 6.1 (155) | 6.5 (165) | 0.39 (10) 6.5% |
| Circum. inches (mm) | 72.05 (1829.98) | 79.78 (2026.33) | 7.73 (196.35) 10.7% |
| Sidewall Height inches (mm) | 3.97 (100.75) | 5.2 (132) | 1.23 (31.25) 31% |
| Revolutions per mile (km) | 879.43 (546.45) | 794.22 (493.5) | -85.22 (-52.95) -9.7% |
165/80-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.15 mph (35.64 km/h) |
| 25 mph (40.23 km/h) | 27.68 mph (44.55 km/h) |
| 30 mph (48.28 km/h) | 33.22 mph (53.46 km/h) |
| 35 mph (56.33 km/h) | 38.76 mph (62.37 km/h) |
| 40 mph (64.37 km/h) | 44.29 mph (71.28 km/h) |
| 45 mph (72.42 km/h) | 49.83 mph (80.19 km/h) |
| 50 mph (80.47 km/h) | 55.36 mph (89.1 km/h) |
| 55 mph (88.51 km/h) | 60.9 mph (98.01 km/h) |
| 60 mph (96.56 km/h) | 66.44 mph (106.92 km/h) |
| 65 mph (104.61 km/h) | 71.97 mph (115.83 km/h) |
| 70 mph (112.65 km/h) | 77.51 mph (124.74 km/h) |
| 75 mph (120.7 km/h) | 83.05 mph (133.65 km/h) |
| 80 mph (128.75 km/h) | 88.58 mph (142.56 km/h) |
| 85 mph (136.79 km/h) | 94.12 mph (151.47 km/h) |
| 90 mph (144.84 km/h) | 99.66 mph (160.38 km/h) |
| 95 mph (152.89 km/h) | 105.19 mph (169.29 km/h) |
| 100 mph (160.93 km/h) | 110.73 mph (178.2 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | 2348 | 2529 | 2640 | 2761 | 2847 | 2941 | 3053 | 3208 | 3363 | 3535 | 3672 | 3922 | 4197 | 4412 | 4550 | 4627 | 4911 | 5307 | 6167 |
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