Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/50-20 | 245/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.65 (753) | 31.57 (802) | 1.93 (49) 6.5% |
| Width inches (mm) | 9.65 (245) | 9.65 (245) | 0 (0) 0% |
| Circum. inches (mm) | 93.13 (2365.62) | 99.2 (2519.56) | 6.06 (153.94) 6.5% |
| Sidewall Height inches (mm) | 4.82 (122.5) | 5.79 (147) | 0.96 (24.5) 20% |
| Revolutions per mile (km) | 680.31 (422.72) | 638.74 (396.89) | -41.56 (-25.83) -6.1% |
245/60-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.3 mph (34.28 km/h) |
| 25 mph (40.23 km/h) | 26.63 mph (42.85 km/h) |
| 30 mph (48.28 km/h) | 31.95 mph (51.42 km/h) |
| 35 mph (56.33 km/h) | 37.28 mph (59.99 km/h) |
| 40 mph (64.37 km/h) | 42.6 mph (68.56 km/h) |
| 45 mph (72.42 km/h) | 47.93 mph (77.13 km/h) |
| 50 mph (80.47 km/h) | 53.25 mph (85.7 km/h) |
| 55 mph (88.51 km/h) | 58.58 mph (94.27 km/h) |
| 60 mph (96.56 km/h) | 63.9 mph (102.84 km/h) |
| 65 mph (104.61 km/h) | 69.23 mph (111.41 km/h) |
| 70 mph (112.65 km/h) | 74.56 mph (119.99 km/h) |
| 75 mph (120.7 km/h) | 79.88 mph (128.56 km/h) |
| 80 mph (128.75 km/h) | 85.21 mph (137.13 km/h) |
| 85 mph (136.79 km/h) | 90.53 mph (145.7 km/h) |
| 90 mph (144.84 km/h) | 95.86 mph (154.27 km/h) |
| 95 mph (152.89 km/h) | 101.18 mph (162.84 km/h) |
| 100 mph (160.93 km/h) | 106.51 mph (171.41 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1625 | 1888 | 2034 | 2123 | 2220 | 2289 | 2366 | 2456 | 2580 | 2705 | 2843 | 2954 | 3154 | 3375 | 3548 | 3659 | 3721 | 3950 | 4268 | 4959 |
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