Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/25-23 | 320/70-24 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.2 (741.7) | 41.64 (1057.6) | 12.44 (315.9) 42.6% |
| Width inches (mm) | 12.4 (315) | 12.6 (320) | 0.2 (5) 1.6% |
| Circum. inches (mm) | 91.74 (2330.12) | 130.81 (3322.55) | 39.07 (992.43) 42.6% |
| Sidewall Height inches (mm) | 3.1 (78.75) | 8.82 (224) | 5.72 (145.25) 184.4% |
| Revolutions per mile (km) | 690.67 (429.16) | 484.37 (300.97) | -206.3 (-128.19) -29.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 28.52 mph (45.9 km/h) |
| 25 mph (40.23 km/h) | 35.65 mph (57.37 km/h) |
| 30 mph (48.28 km/h) | 42.78 mph (68.84 km/h) |
| 35 mph (56.33 km/h) | 49.91 mph (80.32 km/h) |
| 40 mph (64.37 km/h) | 57.04 mph (91.79 km/h) |
| 45 mph (72.42 km/h) | 64.17 mph (103.27 km/h) |
| 50 mph (80.47 km/h) | 71.3 mph (114.74 km/h) |
| 55 mph (88.51 km/h) | 78.43 mph (126.21 km/h) |
| 60 mph (96.56 km/h) | 85.55 mph (137.69 km/h) |
| 65 mph (104.61 km/h) | 92.68 mph (149.16 km/h) |
| 70 mph (112.65 km/h) | 99.81 mph (160.64 km/h) |
| 75 mph (120.7 km/h) | 106.94 mph (172.11 km/h) |
| 80 mph (128.75 km/h) | 114.07 mph (183.58 km/h) |
| 85 mph (136.79 km/h) | 121.2 mph (195.06 km/h) |
| 90 mph (144.84 km/h) | 128.33 mph (206.53 km/h) |
| 95 mph (152.89 km/h) | 135.46 mph (218.01 km/h) |
| 100 mph (160.93 km/h) | 142.59 mph (229.48 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1233 | 1432 | 1542 | 1610 | 1684 | 1736 | 1794 | 1862 | 1956 | 2051 | 2156 | 2240 | 2392 | 2560 | 2691 | 2775 | 2822 | 2995 | 3236 | 3761 |
Better Fuel Economy Factory Ratios Increased Power
