Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/35-20 | 275/40-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.58 (700.5) | 28.66 (728) | 1.08 (27.5) 3.9% |
| Width inches (mm) | 10.83 (275) | 10.83 (275) | 0 (0) 0% |
| Circum. inches (mm) | 86.64 (2200.69) | 90.04 (2287.08) | 3.4 (86.39) 3.9% |
| Sidewall Height inches (mm) | 3.79 (96.25) | 4.33 (110) | 0.54 (13.75) 14.3% |
| Revolutions per mile (km) | 731.29 (454.4) | 703.67 (437.24) | -27.62 (-17.16) -3.8% |
275/40-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.79 mph (33.45 km/h) |
| 25 mph (40.23 km/h) | 25.98 mph (41.81 km/h) |
| 30 mph (48.28 km/h) | 31.18 mph (50.18 km/h) |
| 35 mph (56.33 km/h) | 36.37 mph (58.54 km/h) |
| 40 mph (64.37 km/h) | 41.57 mph (66.9 km/h) |
| 45 mph (72.42 km/h) | 46.77 mph (75.26 km/h) |
| 50 mph (80.47 km/h) | 51.96 mph (83.63 km/h) |
| 55 mph (88.51 km/h) | 57.16 mph (91.99 km/h) |
| 60 mph (96.56 km/h) | 62.36 mph (100.35 km/h) |
| 65 mph (104.61 km/h) | 67.55 mph (108.71 km/h) |
| 70 mph (112.65 km/h) | 72.75 mph (117.08 km/h) |
| 75 mph (120.7 km/h) | 77.94 mph (125.44 km/h) |
| 80 mph (128.75 km/h) | 83.14 mph (133.8 km/h) |
| 85 mph (136.79 km/h) | 88.34 mph (142.16 km/h) |
| 90 mph (144.84 km/h) | 93.53 mph (150.53 km/h) |
| 95 mph (152.89 km/h) | 98.73 mph (158.89 km/h) |
| 100 mph (160.93 km/h) | 103.93 mph (167.25 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1791 | 2080 | 2240 | 2339 | 2446 | 2522 | 2606 | 2705 | 2842 | 2979 | 3132 | 3254 | 3475 | 3719 | 3909 | 4031 | 4100 | 4351 | 4702 | 5464 |
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