Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/60-20 | 255/30-24 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.8 (706) | 30.02 (762.6) | 2.23 (56.6) 8% |
| Width inches (mm) | 6.5 (165) | 10.04 (255) | 3.54 (90) 54.5% |
| Circum. inches (mm) | 87.32 (2217.96) | 94.32 (2395.78) | 7 (177.81) 8% |
| Sidewall Height inches (mm) | 3.9 (99) | 3.01 (76.5) | -0.89 (-22.5) -22.7% |
| Revolutions per mile (km) | 725.6 (450.86) | 671.74 (417.4) | -53.85 (-33.46) -7.4% |
255/30-24 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.6 mph (34.77 km/h) |
| 25 mph (40.23 km/h) | 27 mph (43.46 km/h) |
| 30 mph (48.28 km/h) | 32.41 mph (52.15 km/h) |
| 35 mph (56.33 km/h) | 37.81 mph (60.84 km/h) |
| 40 mph (64.37 km/h) | 43.21 mph (69.53 km/h) |
| 45 mph (72.42 km/h) | 48.61 mph (78.23 km/h) |
| 50 mph (80.47 km/h) | 54.01 mph (86.92 km/h) |
| 55 mph (88.51 km/h) | 59.41 mph (95.61 km/h) |
| 60 mph (96.56 km/h) | 64.81 mph (104.3 km/h) |
| 65 mph (104.61 km/h) | 70.21 mph (112.99 km/h) |
| 70 mph (112.65 km/h) | 75.61 mph (121.69 km/h) |
| 75 mph (120.7 km/h) | 81.01 mph (130.38 km/h) |
| 80 mph (128.75 km/h) | 86.41 mph (139.07 km/h) |
| 85 mph (136.79 km/h) | 91.81 mph (147.76 km/h) |
| 90 mph (144.84 km/h) | 97.22 mph (156.45 km/h) |
| 95 mph (152.89 km/h) | 102.62 mph (165.14 km/h) |
| 100 mph (160.93 km/h) | 108.02 mph (173.84 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1709 | 1986 | 2139 | 2233 | 2335 | 2408 | 2488 | 2582 | 2713 | 2844 | 2990 | 3106 | 3317 | 3550 | 3732 | 3848 | 3914 | 4154 | 4488 | 5216 |
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