Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/30-30 | 265/30-30 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 37.44 (951) | 36.26 (921) | -1.18 (-30) -3.2% |
| Width inches (mm) | 12.4 (315) | 10.43 (265) | -1.97 (-50) -15.9% |
| Circum. inches (mm) | 117.62 (2987.65) | 113.91 (2893.41) | -3.71 (-94.25) -3.2% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 3.13 (79.5) | -0.59 (-15) -15.9% |
| Revolutions per mile (km) | 538.66 (334.71) | 556.21 (345.61) | 17.55 (10.9) 3.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.37 mph (31.17 km/h) |
| 25 mph (40.23 km/h) | 24.21 mph (38.96 km/h) |
| 30 mph (48.28 km/h) | 29.05 mph (46.76 km/h) |
| 35 mph (56.33 km/h) | 33.9 mph (54.55 km/h) |
| 40 mph (64.37 km/h) | 38.74 mph (62.34 km/h) |
| 45 mph (72.42 km/h) | 43.58 mph (70.14 km/h) |
| 50 mph (80.47 km/h) | 48.42 mph (77.93 km/h) |
| 55 mph (88.51 km/h) | 53.26 mph (85.72 km/h) |
| 60 mph (96.56 km/h) | 58.11 mph (93.51 km/h) |
| 65 mph (104.61 km/h) | 62.95 mph (101.31 km/h) |
| 70 mph (112.65 km/h) | 67.79 mph (109.1 km/h) |
| 75 mph (120.7 km/h) | 72.63 mph (116.89 km/h) |
| 80 mph (128.75 km/h) | 77.48 mph (124.69 km/h) |
| 85 mph (136.79 km/h) | 82.32 mph (132.48 km/h) |
| 90 mph (144.84 km/h) | 87.16 mph (140.27 km/h) |
| 95 mph (152.89 km/h) | 92 mph (148.07 km/h) |
| 100 mph (160.93 km/h) | 96.85 mph (155.86 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1415 | 1644 | 1771 | 1849 | 1933 | 1994 | 2060 | 2138 | 2247 | 2355 | 2476 | 2572 | 2747 | 2939 | 3090 | 3186 | 3240 | 3439 | 3716 | 4319 |
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