Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/70-16 | 305/75-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.16 (791.4) | 34.01 (863.9) | 2.85 (72.5) 9.2% |
| Width inches (mm) | 10.83 (275) | 12.01 (305) | 1.18 (30) 10.9% |
| Circum. inches (mm) | 97.88 (2486.26) | 106.85 (2714.02) | 8.97 (227.77) 9.2% |
| Sidewall Height inches (mm) | 7.58 (192.5) | 9.01 (228.75) | 1.43 (36.25) 18.8% |
| Revolutions per mile (km) | 647.3 (402.21) | 592.97 (368.46) | -54.32 (-33.75) -8.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.83 mph (35.14 km/h) |
| 25 mph (40.23 km/h) | 27.29 mph (43.92 km/h) |
| 30 mph (48.28 km/h) | 32.75 mph (52.7 km/h) |
| 35 mph (56.33 km/h) | 38.21 mph (61.49 km/h) |
| 40 mph (64.37 km/h) | 43.66 mph (70.27 km/h) |
| 45 mph (72.42 km/h) | 49.12 mph (79.06 km/h) |
| 50 mph (80.47 km/h) | 54.58 mph (87.84 km/h) |
| 55 mph (88.51 km/h) | 60.04 mph (96.62 km/h) |
| 60 mph (96.56 km/h) | 65.5 mph (105.41 km/h) |
| 65 mph (104.61 km/h) | 70.95 mph (114.19 km/h) |
| 70 mph (112.65 km/h) | 76.41 mph (122.97 km/h) |
| 75 mph (120.7 km/h) | 81.87 mph (131.76 km/h) |
| 80 mph (128.75 km/h) | 87.33 mph (140.54 km/h) |
| 85 mph (136.79 km/h) | 92.79 mph (149.33 km/h) |
| 90 mph (144.84 km/h) | 98.24 mph (158.11 km/h) |
| 95 mph (152.89 km/h) | 103.7 mph (166.89 km/h) |
| 100 mph (160.93 km/h) | 109.16 mph (175.68 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1509 | 1753 | 1888 | 1971 | 2061 | 2125 | 2196 | 2280 | 2395 | 2511 | 2639 | 2742 | 2928 | 3134 | 3294 | 3397 | 3455 | 3667 | 3962 | 4604 |
Better Fuel Economy Factory Ratios Increased Power
