Accepts P-Metric and Inches
285/45-18 | 245/50-18 | Difference | |
---|---|---|---|
Diameter inches (mm) | 28.1 (713.7) | 27.65 (702.2) | -0.45 (-11.5) -1.6% |
Width inches (mm) | 11.22 (285) | 9.65 (245) | -1.57 (-40) -14% |
Circum. inches (mm) | 88.27 (2242.15) | 86.85 (2206.03) | -1.42 (-36.13) -1.6% |
Sidewall Height inches (mm) | 5.05 (128.25) | 4.82 (122.5) | -0.23 (-5.75) -4.5% |
Revolutions per mile (km) | 717.77 (446) | 729.52 (453.3) | 11.75 (7.3) 1.6% |
245/50-18 Tires
Speedometer Difference
Speedo Reading | Actual Speed |
---|---|
20 mph (32.19 km/h) | 19.68 mph (31.67 km/h) |
25 mph (40.23 km/h) | 24.6 mph (39.59 km/h) |
30 mph (48.28 km/h) | 29.52 mph (47.5 km/h) |
35 mph (56.33 km/h) | 34.44 mph (55.42 km/h) |
40 mph (64.37 km/h) | 39.36 mph (63.34 km/h) |
45 mph (72.42 km/h) | 44.27 mph (71.25 km/h) |
50 mph (80.47 km/h) | 49.19 mph (79.17 km/h) |
55 mph (88.51 km/h) | 54.11 mph (87.09 km/h) |
60 mph (96.56 km/h) | 59.03 mph (95 km/h) |
65 mph (104.61 km/h) | 63.95 mph (102.92 km/h) |
70 mph (112.65 km/h) | 68.87 mph (110.84 km/h) |
75 mph (120.7 km/h) | 73.79 mph (118.76 km/h) |
80 mph (128.75 km/h) | 78.71 mph (126.67 km/h) |
85 mph (136.79 km/h) | 83.63 mph (134.59 km/h) |
90 mph (144.84 km/h) | 88.55 mph (142.51 km/h) |
95 mph (152.89 km/h) | 93.47 mph (150.42 km/h) |
100 mph (160.93 km/h) | 98.39 mph (158.34 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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1856 | 2157 | 2323 | 2425 | 2536 | 2615 | 2702 | 2804 | 2947 | 3089 | 3247 | 3373 | 3602 | 3855 | 4053 | 4179 | 4250 | 4511 | 4874 | 5664 |
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