Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/70-15 | 165/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.65 (626) | 25.39 (645) | 0.75 (19) 3% |
| Width inches (mm) | 6.89 (175) | 6.5 (165) | -0.39 (-10) -5.7% |
| Circum. inches (mm) | 77.43 (1966.64) | 79.78 (2026.33) | 2.35 (59.69) 3% |
| Sidewall Height inches (mm) | 4.82 (122.5) | 5.2 (132) | 0.37 (9.5) 7.8% |
| Revolutions per mile (km) | 818.32 (508.48) | 794.22 (493.5) | -24.11 (-14.98) -2.9% |
165/80-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.61 mph (33.16 km/h) |
| 25 mph (40.23 km/h) | 25.76 mph (41.45 km/h) |
| 30 mph (48.28 km/h) | 30.91 mph (49.75 km/h) |
| 35 mph (56.33 km/h) | 36.06 mph (58.04 km/h) |
| 40 mph (64.37 km/h) | 41.21 mph (66.33 km/h) |
| 45 mph (72.42 km/h) | 46.37 mph (74.62 km/h) |
| 50 mph (80.47 km/h) | 51.52 mph (82.91 km/h) |
| 55 mph (88.51 km/h) | 56.67 mph (91.2 km/h) |
| 60 mph (96.56 km/h) | 61.82 mph (99.49 km/h) |
| 65 mph (104.61 km/h) | 66.97 mph (107.78 km/h) |
| 70 mph (112.65 km/h) | 72.12 mph (116.07 km/h) |
| 75 mph (120.7 km/h) | 77.28 mph (124.36 km/h) |
| 80 mph (128.75 km/h) | 82.43 mph (132.66 km/h) |
| 85 mph (136.79 km/h) | 87.58 mph (140.95 km/h) |
| 90 mph (144.84 km/h) | 92.73 mph (149.24 km/h) |
| 95 mph (152.89 km/h) | 97.88 mph (157.53 km/h) |
| 100 mph (160.93 km/h) | 103.04 mph (165.82 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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