Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/35-20 | 275/40-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.03 (686.5) | 28.66 (728) | 1.63 (41.5) 6% |
| Width inches (mm) | 10.04 (255) | 10.83 (275) | 0.79 (20) 7.8% |
| Circum. inches (mm) | 84.91 (2156.7) | 90.04 (2287.08) | 5.13 (130.38) 6% |
| Sidewall Height inches (mm) | 3.51 (89.25) | 4.33 (110) | 0.82 (20.75) 23.2% |
| Revolutions per mile (km) | 746.21 (463.67) | 703.67 (437.24) | -42.54 (-26.43) -5.7% |
275/40-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.21 mph (34.13 km/h) |
| 25 mph (40.23 km/h) | 26.51 mph (42.67 km/h) |
| 30 mph (48.28 km/h) | 31.81 mph (51.2 km/h) |
| 35 mph (56.33 km/h) | 37.12 mph (59.73 km/h) |
| 40 mph (64.37 km/h) | 42.42 mph (68.27 km/h) |
| 45 mph (72.42 km/h) | 47.72 mph (76.8 km/h) |
| 50 mph (80.47 km/h) | 53.02 mph (85.33 km/h) |
| 55 mph (88.51 km/h) | 58.32 mph (93.86 km/h) |
| 60 mph (96.56 km/h) | 63.63 mph (102.4 km/h) |
| 65 mph (104.61 km/h) | 68.93 mph (110.93 km/h) |
| 70 mph (112.65 km/h) | 74.23 mph (119.46 km/h) |
| 75 mph (120.7 km/h) | 79.53 mph (128 km/h) |
| 80 mph (128.75 km/h) | 84.84 mph (136.53 km/h) |
| 85 mph (136.79 km/h) | 90.14 mph (145.06 km/h) |
| 90 mph (144.84 km/h) | 95.44 mph (153.6 km/h) |
| 95 mph (152.89 km/h) | 100.74 mph (162.13 km/h) |
| 100 mph (160.93 km/h) | 106.05 mph (170.66 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 |
Better Fuel Economy Factory Ratios Increased Power
