Accepts P-Metric and Inches
315/40-19 | 275/45-18 | Difference | |
---|---|---|---|
Diameter inches (mm) | 28.92 (734.6) | 27.74 (704.7) | -1.18 (-29.9) -4.1% |
Width inches (mm) | 12.4 (315) | 10.83 (275) | -1.57 (-40) -12.7% |
Circum. inches (mm) | 90.86 (2307.81) | 87.16 (2213.88) | -3.7 (-93.93) -4.1% |
Sidewall Height inches (mm) | 4.96 (126) | 4.87 (123.75) | -0.09 (-2.25) -1.8% |
Revolutions per mile (km) | 697.35 (433.31) | 726.93 (451.69) | 29.59 (18.39) 4.2% |
275/45-18 Tires
Speedometer Difference
Speedo Reading | Actual Speed |
---|---|
20 mph (32.19 km/h) | 19.19 mph (30.88 km/h) |
25 mph (40.23 km/h) | 23.98 mph (38.6 km/h) |
30 mph (48.28 km/h) | 28.78 mph (46.32 km/h) |
35 mph (56.33 km/h) | 33.58 mph (54.03 km/h) |
40 mph (64.37 km/h) | 38.37 mph (61.75 km/h) |
45 mph (72.42 km/h) | 43.17 mph (69.47 km/h) |
50 mph (80.47 km/h) | 47.96 mph (77.19 km/h) |
55 mph (88.51 km/h) | 52.76 mph (84.91 km/h) |
60 mph (96.56 km/h) | 57.56 mph (92.63 km/h) |
65 mph (104.61 km/h) | 62.35 mph (100.35 km/h) |
70 mph (112.65 km/h) | 67.15 mph (108.07 km/h) |
75 mph (120.7 km/h) | 71.95 mph (115.79 km/h) |
80 mph (128.75 km/h) | 76.74 mph (123.51 km/h) |
85 mph (136.79 km/h) | 81.54 mph (131.23 km/h) |
90 mph (144.84 km/h) | 86.34 mph (138.95 km/h) |
95 mph (152.89 km/h) | 91.13 mph (146.67 km/h) |
100 mph (160.93 km/h) | 95.93 mph (154.38 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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1850 | 2149 | 2314 | 2417 | 2527 | 2606 | 2692 | 2795 | 2936 | 3078 | 3235 | 3361 | 3590 | 3842 | 4038 | 4164 | 4235 | 4495 | 4857 | 5644 |
Better Fuel Economy Factory Ratios Increased Power