Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 36/12.5-16.5 | 320/55-16.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.03 (915.18) | 30.36 (771.1) | -5.67 (-144.08) -15.7% |
| Width inches (mm) | 12.52 (318) | 12.6 (320) | 0.08 (2) 0.6% |
| Circum. inches (mm) | 113.19 (2875.12) | 95.37 (2422.48) | -17.82 (-452.64) -15.7% |
| Sidewall Height inches (mm) | 9.77 (248.04) | 6.93 (176) | -2.84 (-72.04) -29% |
| Revolutions per mile (km) | 559.75 (347.81) | 664.34 (412.8) | 104.59 (64.99) 18.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.85 mph (27.12 km/h) |
| 25 mph (40.23 km/h) | 21.06 mph (33.9 km/h) |
| 30 mph (48.28 km/h) | 25.28 mph (40.68 km/h) |
| 35 mph (56.33 km/h) | 29.49 mph (47.46 km/h) |
| 40 mph (64.37 km/h) | 33.7 mph (54.24 km/h) |
| 45 mph (72.42 km/h) | 37.92 mph (61.02 km/h) |
| 50 mph (80.47 km/h) | 42.13 mph (67.8 km/h) |
| 55 mph (88.51 km/h) | 46.34 mph (74.58 km/h) |
| 60 mph (96.56 km/h) | 50.55 mph (81.36 km/h) |
| 65 mph (104.61 km/h) | 54.77 mph (88.14 km/h) |
| 70 mph (112.65 km/h) | 58.98 mph (94.92 km/h) |
| 75 mph (120.7 km/h) | 63.19 mph (101.7 km/h) |
| 80 mph (128.75 km/h) | 67.41 mph (108.48 km/h) |
| 85 mph (136.79 km/h) | 71.62 mph (115.26 km/h) |
| 90 mph (144.84 km/h) | 75.83 mph (122.04 km/h) |
| 95 mph (152.89 km/h) | 80.04 mph (128.82 km/h) |
| 100 mph (160.93 km/h) | 84.26 mph (135.6 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1691 | 1964 | 2115 | 2209 | 2309 | 2381 | 2460 | 2554 | 2683 | 2813 | 2957 | 3072 | 3281 | 3511 | 3691 | 3806 | 3870 | 4108 | 4439 | 5158 |
Better Fuel Economy Factory Ratios Increased Power
