Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/80-16 | 37/10.5-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.47 (926.4) | 37.02 (940.4) | 0.55 (14) 1.5% |
| Width inches (mm) | 12.8 (325) | 10.51 (267) | -2.28 (-58) -17.8% |
| Circum. inches (mm) | 114.58 (2910.37) | 116.31 (2954.35) | 1.73 (43.98) 1.5% |
| Sidewall Height inches (mm) | 10.24 (260) | 10.51 (267) | 0.28 (7) 2.7% |
| Revolutions per mile (km) | 552.97 (343.6) | 544.74 (338.48) | -8.23 (-5.12) -1.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.3 mph (32.67 km/h) |
| 25 mph (40.23 km/h) | 25.38 mph (40.84 km/h) |
| 30 mph (48.28 km/h) | 30.45 mph (49.01 km/h) |
| 35 mph (56.33 km/h) | 35.53 mph (57.18 km/h) |
| 40 mph (64.37 km/h) | 40.6 mph (65.35 km/h) |
| 45 mph (72.42 km/h) | 45.68 mph (73.52 km/h) |
| 50 mph (80.47 km/h) | 50.76 mph (81.68 km/h) |
| 55 mph (88.51 km/h) | 55.83 mph (89.85 km/h) |
| 60 mph (96.56 km/h) | 60.91 mph (98.02 km/h) |
| 65 mph (104.61 km/h) | 65.98 mph (106.19 km/h) |
| 70 mph (112.65 km/h) | 71.06 mph (114.36 km/h) |
| 75 mph (120.7 km/h) | 76.13 mph (122.53 km/h) |
| 80 mph (128.75 km/h) | 81.21 mph (130.69 km/h) |
| 85 mph (136.79 km/h) | 86.28 mph (138.86 km/h) |
| 90 mph (144.84 km/h) | 91.36 mph (147.03 km/h) |
| 95 mph (152.89 km/h) | 96.44 mph (155.2 km/h) |
| 100 mph (160.93 km/h) | 101.51 mph (163.37 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1386 | 1610 | 1734 | 1811 | 1894 | 1953 | 2017 | 2094 | 2200 | 2306 | 2424 | 2519 | 2690 | 2879 | 3026 | 3121 | 3174 | 3368 | 3640 | 4230 |
Better Fuel Economy Factory Ratios Increased Power
