Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/45-15 | 305/55-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.45 (646.5) | 31.21 (792.7) | 5.76 (146.2) 22.6% |
| Width inches (mm) | 11.61 (295) | 12.01 (305) | 0.39 (10) 3.4% |
| Circum. inches (mm) | 79.96 (2031.04) | 98.04 (2490.34) | 18.08 (459.3) 22.6% |
| Sidewall Height inches (mm) | 5.23 (132.75) | 6.6 (167.75) | 1.38 (35) 26.4% |
| Revolutions per mile (km) | 792.37 (492.36) | 646.23 (401.55) | -146.14 (-90.81) -18.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.52 mph (39.47 km/h) |
| 25 mph (40.23 km/h) | 30.65 mph (49.33 km/h) |
| 30 mph (48.28 km/h) | 36.78 mph (59.2 km/h) |
| 35 mph (56.33 km/h) | 42.91 mph (69.07 km/h) |
| 40 mph (64.37 km/h) | 49.05 mph (78.93 km/h) |
| 45 mph (72.42 km/h) | 55.18 mph (88.8 km/h) |
| 50 mph (80.47 km/h) | 61.31 mph (98.66 km/h) |
| 55 mph (88.51 km/h) | 67.44 mph (108.53 km/h) |
| 60 mph (96.56 km/h) | 73.57 mph (118.4 km/h) |
| 65 mph (104.61 km/h) | 79.7 mph (128.26 km/h) |
| 70 mph (112.65 km/h) | 85.83 mph (138.13 km/h) |
| 75 mph (120.7 km/h) | 91.96 mph (148 km/h) |
| 80 mph (128.75 km/h) | 98.09 mph (157.86 km/h) |
| 85 mph (136.79 km/h) | 104.22 mph (167.73 km/h) |
| 90 mph (144.84 km/h) | 110.35 mph (177.6 km/h) |
| 95 mph (152.89 km/h) | 116.48 mph (187.46 km/h) |
| 100 mph (160.93 km/h) | 122.61 mph (197.33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1645 | 1910 | 2057 | 2148 | 2246 | 2316 | 2393 | 2484 | 2610 | 2736 | 2876 | 2988 | 3191 | 3415 | 3590 | 3702 | 3765 | 3996 | 4318 | 5018 |
Better Fuel Economy Factory Ratios Increased Power
