Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 355/25-21 | 375/25-21 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.99 (710.9) | 28.38 (720.9) | 0.39 (10) 1.4% |
| Width inches (mm) | 13.98 (355) | 14.76 (375) | 0.79 (20) 5.6% |
| Circum. inches (mm) | 87.93 (2233.36) | 89.16 (2264.77) | 1.24 (31.42) 1.4% |
| Sidewall Height inches (mm) | 3.49 (88.75) | 3.69 (93.75) | 0.2 (5) 5.6% |
| Revolutions per mile (km) | 720.59 (447.76) | 710.6 (441.54) | -10 (-6.21) -1.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.28 mph (32.64 km/h) |
| 25 mph (40.23 km/h) | 25.35 mph (40.8 km/h) |
| 30 mph (48.28 km/h) | 30.42 mph (48.96 km/h) |
| 35 mph (56.33 km/h) | 35.49 mph (57.12 km/h) |
| 40 mph (64.37 km/h) | 40.56 mph (65.28 km/h) |
| 45 mph (72.42 km/h) | 45.63 mph (73.44 km/h) |
| 50 mph (80.47 km/h) | 50.7 mph (81.6 km/h) |
| 55 mph (88.51 km/h) | 55.77 mph (89.76 km/h) |
| 60 mph (96.56 km/h) | 60.84 mph (97.92 km/h) |
| 65 mph (104.61 km/h) | 65.91 mph (106.08 km/h) |
| 70 mph (112.65 km/h) | 70.98 mph (114.24 km/h) |
| 75 mph (120.7 km/h) | 76.06 mph (122.4 km/h) |
| 80 mph (128.75 km/h) | 81.13 mph (130.56 km/h) |
| 85 mph (136.79 km/h) | 86.2 mph (138.72 km/h) |
| 90 mph (144.84 km/h) | 91.27 mph (146.88 km/h) |
| 95 mph (152.89 km/h) | 96.34 mph (155.04 km/h) |
| 100 mph (160.93 km/h) | 101.41 mph (163.2 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1808 | 2101 | 2262 | 2362 | 2470 | 2547 | 2632 | 2732 | 2870 | 3009 | 3163 | 3286 | 3509 | 3755 | 3948 | 4071 | 4140 | 4394 | 4748 | 5517 |
Better Fuel Economy Factory Ratios Increased Power
