Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/60-13 | 245/60-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.74 (552.2) | 26.57 (675) | 4.83 (122.8) 22.2% |
| Width inches (mm) | 7.28 (185) | 9.65 (245) | 2.36 (60) 32.4% |
| Circum. inches (mm) | 68.3 (1734.79) | 83.49 (2120.58) | 15.19 (385.79) 22.2% |
| Sidewall Height inches (mm) | 4.37 (111) | 5.79 (147) | 1.42 (36) 32.4% |
| Revolutions per mile (km) | 927.69 (576.44) | 758.92 (471.57) | -168.77 (-104.87) -18.2% |
245/60-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.45 mph (39.34 km/h) |
| 25 mph (40.23 km/h) | 30.56 mph (49.18 km/h) |
| 30 mph (48.28 km/h) | 36.67 mph (59.02 km/h) |
| 35 mph (56.33 km/h) | 42.78 mph (68.85 km/h) |
| 40 mph (64.37 km/h) | 48.9 mph (78.69 km/h) |
| 45 mph (72.42 km/h) | 55.01 mph (88.53 km/h) |
| 50 mph (80.47 km/h) | 61.12 mph (98.36 km/h) |
| 55 mph (88.51 km/h) | 67.23 mph (108.2 km/h) |
| 60 mph (96.56 km/h) | 73.34 mph (118.03 km/h) |
| 65 mph (104.61 km/h) | 79.45 mph (127.87 km/h) |
| 70 mph (112.65 km/h) | 85.57 mph (137.71 km/h) |
| 75 mph (120.7 km/h) | 91.68 mph (147.54 km/h) |
| 80 mph (128.75 km/h) | 97.79 mph (157.38 km/h) |
| 85 mph (136.79 km/h) | 103.9 mph (167.22 km/h) |
| 90 mph (144.84 km/h) | 110.01 mph (177.05 km/h) |
| 95 mph (152.89 km/h) | 116.13 mph (186.89 km/h) |
| 100 mph (160.93 km/h) | 122.24 mph (196.72 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1931 | 2244 | 2416 | 2523 | 2638 | 2720 | 2811 | 2918 | 3065 | 3213 | 3378 | 3509 | 3748 | 4011 | 4216 | 4347 | 4421 | 4693 | 5071 | 5893 |
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