Accepts P-Metric and Inches
275/25-20 | 275/30-20 | Difference | |
---|---|---|---|
Diameter inches (mm) | 25.41 (645.5) | 26.5 (673) | 1.08 (27.5) 4.3% |
Width inches (mm) | 10.83 (275) | 10.83 (275) | 0 (0) 0% |
Circum. inches (mm) | 79.84 (2027.9) | 83.24 (2114.29) | 3.4 (86.39) 4.3% |
Sidewall Height inches (mm) | 2.71 (68.75) | 3.25 (82.5) | 0.54 (13.75) 20% |
Revolutions per mile (km) | 793.6 (493.12) | 761.17 (472.97) | -32.43 (-20.15) -4.1% |
275/30-20 Tires
Speedometer Difference
Speedo Reading | Actual Speed |
---|---|
20 mph (32.19 km/h) | 20.85 mph (33.56 km/h) |
25 mph (40.23 km/h) | 26.07 mph (41.95 km/h) |
30 mph (48.28 km/h) | 31.28 mph (50.34 km/h) |
35 mph (56.33 km/h) | 36.49 mph (58.73 km/h) |
40 mph (64.37 km/h) | 41.7 mph (67.12 km/h) |
45 mph (72.42 km/h) | 46.92 mph (75.51 km/h) |
50 mph (80.47 km/h) | 52.13 mph (83.9 km/h) |
55 mph (88.51 km/h) | 57.34 mph (92.29 km/h) |
60 mph (96.56 km/h) | 62.56 mph (100.67 km/h) |
65 mph (104.61 km/h) | 67.77 mph (109.06 km/h) |
70 mph (112.65 km/h) | 72.98 mph (117.45 km/h) |
75 mph (120.7 km/h) | 78.2 mph (125.84 km/h) |
80 mph (128.75 km/h) | 83.41 mph (134.23 km/h) |
85 mph (136.79 km/h) | 88.62 mph (142.62 km/h) |
90 mph (144.84 km/h) | 93.83 mph (151.01 km/h) |
95 mph (152.89 km/h) | 99.05 mph (159.4 km/h) |
100 mph (160.93 km/h) | 104.26 mph (167.79 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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1937 | 2250 | 2423 | 2531 | 2646 | 2728 | 2819 | 2926 | 3075 | 3223 | 3388 | 3520 | 3759 | 4022 | 4229 | 4360 | 4435 | 4707 | 5086 | 5910 |
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