Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/70-19.5 | 380/70-19.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33 (838.3) | 40.44 (1027.3) | 7.44 (189) 22.5% |
| Width inches (mm) | 9.65 (245) | 14.96 (380) | 5.31 (135) 55.1% |
| Circum. inches (mm) | 103.68 (2633.6) | 127.06 (3227.36) | 23.38 (593.76) 22.5% |
| Sidewall Height inches (mm) | 6.75 (171.5) | 10.47 (266) | 3.72 (94.5) 55.1% |
| Revolutions per mile (km) | 611.08 (379.71) | 498.66 (309.85) | -112.43 (-69.86) -18.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.51 mph (39.44 km/h) |
| 25 mph (40.23 km/h) | 30.64 mph (49.3 km/h) |
| 30 mph (48.28 km/h) | 36.76 mph (59.17 km/h) |
| 35 mph (56.33 km/h) | 42.89 mph (69.03 km/h) |
| 40 mph (64.37 km/h) | 49.02 mph (78.89 km/h) |
| 45 mph (72.42 km/h) | 55.15 mph (88.75 km/h) |
| 50 mph (80.47 km/h) | 61.27 mph (98.61 km/h) |
| 55 mph (88.51 km/h) | 67.4 mph (108.47 km/h) |
| 60 mph (96.56 km/h) | 73.53 mph (118.33 km/h) |
| 65 mph (104.61 km/h) | 79.65 mph (128.19 km/h) |
| 70 mph (112.65 km/h) | 85.78 mph (138.05 km/h) |
| 75 mph (120.7 km/h) | 91.91 mph (147.91 km/h) |
| 80 mph (128.75 km/h) | 98.04 mph (157.77 km/h) |
| 85 mph (136.79 km/h) | 104.16 mph (167.64 km/h) |
| 90 mph (144.84 km/h) | 110.29 mph (177.5 km/h) |
| 95 mph (152.89 km/h) | 116.42 mph (187.36 km/h) |
| 100 mph (160.93 km/h) | 122.55 mph (197.22 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1269 | 1474 | 1588 | 1658 | 1733 | 1787 | 1847 | 1917 | 2014 | 2111 | 2219 | 2306 | 2462 | 2635 | 2770 | 2857 | 2905 | 3083 | 3332 | 3872 |
Better Fuel Economy Factory Ratios Increased Power
