Accepts P-Metric and Inches
225/45-18 | 225/40-18 | Difference | |
---|---|---|---|
Diameter inches (mm) | 25.97 (659.7) | 25.09 (637.2) | -0.89 (-22.5) -3.4% |
Width inches (mm) | 8.86 (225) | 8.86 (225) | 0 (0) 0% |
Circum. inches (mm) | 81.59 (2072.51) | 78.81 (2001.82) | -2.78 (-70.69) -3.4% |
Sidewall Height inches (mm) | 3.99 (101.25) | 3.54 (90) | -0.44 (-11.25) -11.1% |
Revolutions per mile (km) | 776.52 (482.51) | 803.94 (499.54) | 27.42 (17.04) 3.5% |
225/40-18 Tires
Speedometer Difference
Speedo Reading | Actual Speed |
---|---|
20 mph (32.19 km/h) | 19.32 mph (31.09 km/h) |
25 mph (40.23 km/h) | 24.15 mph (38.86 km/h) |
30 mph (48.28 km/h) | 28.98 mph (46.63 km/h) |
35 mph (56.33 km/h) | 33.81 mph (54.41 km/h) |
40 mph (64.37 km/h) | 38.64 mph (62.18 km/h) |
45 mph (72.42 km/h) | 43.47 mph (69.95 km/h) |
50 mph (80.47 km/h) | 48.29 mph (77.72 km/h) |
55 mph (88.51 km/h) | 53.12 mph (85.5 km/h) |
60 mph (96.56 km/h) | 57.95 mph (93.27 km/h) |
65 mph (104.61 km/h) | 62.78 mph (101.04 km/h) |
70 mph (112.65 km/h) | 67.61 mph (108.81 km/h) |
75 mph (120.7 km/h) | 72.44 mph (116.58 km/h) |
80 mph (128.75 km/h) | 77.27 mph (124.36 km/h) |
85 mph (136.79 km/h) | 82.1 mph (132.13 km/h) |
90 mph (144.84 km/h) | 86.93 mph (139.9 km/h) |
95 mph (152.89 km/h) | 91.76 mph (147.67 km/h) |
100 mph (160.93 km/h) | 96.59 mph (155.45 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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2046 | 2377 | 2560 | 2673 | 2795 | 2882 | 2977 | 3091 | 3247 | 3404 | 3578 | 3717 | 3970 | 4248 | 4466 | 4605 | 4684 | 4971 | 5372 | 6242 |
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