Accepts P-Metric and Inches
275/70-18 | 325/65-18 | Difference | |
---|---|---|---|
Diameter inches (mm) | 33.16 (842.2) | 34.63 (879.7) | 1.48 (37.5) 4.5% |
Width inches (mm) | 10.83 (275) | 12.8 (325) | 1.97 (50) 18.2% |
Circum. inches (mm) | 104.17 (2645.85) | 108.81 (2763.66) | 4.64 (117.81) 4.5% |
Sidewall Height inches (mm) | 7.58 (192.5) | 8.32 (211.25) | 0.74 (18.75) 9.7% |
Revolutions per mile (km) | 608.25 (377.95) | 582.32 (361.84) | -25.93 (-16.11) -4.3% |
325/65-18 Tires
Speedometer Difference
Speedo Reading | Actual Speed |
---|---|
20 mph (32.19 km/h) | 20.89 mph (33.62 km/h) |
25 mph (40.23 km/h) | 26.11 mph (42.03 km/h) |
30 mph (48.28 km/h) | 31.34 mph (50.43 km/h) |
35 mph (56.33 km/h) | 36.56 mph (58.84 km/h) |
40 mph (64.37 km/h) | 41.78 mph (67.24 km/h) |
45 mph (72.42 km/h) | 47 mph (75.65 km/h) |
50 mph (80.47 km/h) | 52.23 mph (84.05 km/h) |
55 mph (88.51 km/h) | 57.45 mph (92.46 km/h) |
60 mph (96.56 km/h) | 62.67 mph (100.86 km/h) |
65 mph (104.61 km/h) | 67.89 mph (109.27 km/h) |
70 mph (112.65 km/h) | 73.12 mph (117.67 km/h) |
75 mph (120.7 km/h) | 78.34 mph (126.08 km/h) |
80 mph (128.75 km/h) | 83.56 mph (134.48 km/h) |
85 mph (136.79 km/h) | 88.78 mph (142.89 km/h) |
90 mph (144.84 km/h) | 94.01 mph (151.29 km/h) |
95 mph (152.89 km/h) | 99.23 mph (159.7 km/h) |
100 mph (160.93 km/h) | 104.45 mph (168.1 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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1482 | 1722 | 1854 | 1936 | 2024 | 2087 | 2157 | 2239 | 2352 | 2466 | 2592 | 2693 | 2876 | 3077 | 3235 | 3336 | 3393 | 3601 | 3891 | 4521 |
Better Fuel Economy Factory Ratios Increased Power