Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/80-14 | 30/10-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.54 (699.6) | 30 (762) | 2.46 (62.4) 8.9% |
| Width inches (mm) | 8.46 (215) | 10 (254) | 1.54 (39) 18.1% |
| Circum. inches (mm) | 86.53 (2197.86) | 94.25 (2393.89) | 7.72 (196.04) 8.9% |
| Sidewall Height inches (mm) | 6.77 (172) | 8 (203.2) | 1.23 (31.2) 18.1% |
| Revolutions per mile (km) | 732.23 (454.99) | 672.27 (417.73) | -59.96 (-37.26) -8.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.78 mph (35.06 km/h) |
| 25 mph (40.23 km/h) | 27.23 mph (43.82 km/h) |
| 30 mph (48.28 km/h) | 32.68 mph (52.59 km/h) |
| 35 mph (56.33 km/h) | 38.12 mph (61.35 km/h) |
| 40 mph (64.37 km/h) | 43.57 mph (70.12 km/h) |
| 45 mph (72.42 km/h) | 49.01 mph (78.88 km/h) |
| 50 mph (80.47 km/h) | 54.46 mph (87.64 km/h) |
| 55 mph (88.51 km/h) | 59.91 mph (96.41 km/h) |
| 60 mph (96.56 km/h) | 65.35 mph (105.17 km/h) |
| 65 mph (104.61 km/h) | 70.8 mph (113.94 km/h) |
| 70 mph (112.65 km/h) | 76.24 mph (122.7 km/h) |
| 75 mph (120.7 km/h) | 81.69 mph (131.47 km/h) |
| 80 mph (128.75 km/h) | 87.14 mph (140.23 km/h) |
| 85 mph (136.79 km/h) | 92.58 mph (149 km/h) |
| 90 mph (144.84 km/h) | 98.03 mph (157.76 km/h) |
| 95 mph (152.89 km/h) | 103.47 mph (166.52 km/h) |
| 100 mph (160.93 km/h) | 108.92 mph (175.29 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1711 | 1987 | 2140 | 2235 | 2337 | 2410 | 2490 | 2584 | 2715 | 2846 | 2992 | 3109 | 3320 | 3553 | 3735 | 3851 | 3917 | 4157 | 4492 | 5220 |
Better Fuel Economy Factory Ratios Increased Power
