Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 36/12.5-16.5 | 405/70-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.03 (915.18) | 42.32 (1075) | 6.29 (159.82) 17.5% |
| Width inches (mm) | 12.52 (318) | 15.94 (405) | 3.43 (87) 27.4% |
| Circum. inches (mm) | 113.19 (2875.12) | 132.96 (3377.21) | 19.77 (502.09) 17.5% |
| Sidewall Height inches (mm) | 9.77 (248.04) | 11.16 (283.5) | 1.4 (35.46) 14.3% |
| Revolutions per mile (km) | 559.75 (347.81) | 476.53 (296.1) | -83.22 (-51.71) -14.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.49 mph (37.81 km/h) |
| 25 mph (40.23 km/h) | 29.37 mph (47.26 km/h) |
| 30 mph (48.28 km/h) | 35.24 mph (56.71 km/h) |
| 35 mph (56.33 km/h) | 41.11 mph (66.16 km/h) |
| 40 mph (64.37 km/h) | 46.99 mph (75.62 km/h) |
| 45 mph (72.42 km/h) | 52.86 mph (85.07 km/h) |
| 50 mph (80.47 km/h) | 58.73 mph (94.52 km/h) |
| 55 mph (88.51 km/h) | 64.6 mph (103.97 km/h) |
| 60 mph (96.56 km/h) | 70.48 mph (113.42 km/h) |
| 65 mph (104.61 km/h) | 76.35 mph (122.88 km/h) |
| 70 mph (112.65 km/h) | 82.22 mph (132.33 km/h) |
| 75 mph (120.7 km/h) | 88.1 mph (141.78 km/h) |
| 80 mph (128.75 km/h) | 93.97 mph (151.23 km/h) |
| 85 mph (136.79 km/h) | 99.84 mph (160.68 km/h) |
| 90 mph (144.84 km/h) | 105.72 mph (170.14 km/h) |
| 95 mph (152.89 km/h) | 111.59 mph (179.59 km/h) |
| 100 mph (160.93 km/h) | 117.46 mph (189.04 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1213 | 1409 | 1517 | 1584 | 1656 | 1708 | 1765 | 1832 | 1925 | 2018 | 2121 | 2203 | 2353 | 2518 | 2647 | 2730 | 2776 | 2947 | 3184 | 3700 |
Better Fuel Economy Factory Ratios Increased Power
