Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/40-23 | 395/55-23 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.61 (828.2) | 40.11 (1018.7) | 7.5 (190.5) 23% |
| Width inches (mm) | 12.01 (305) | 15.55 (395) | 3.54 (90) 29.5% |
| Circum. inches (mm) | 102.44 (2601.87) | 126 (3200.34) | 23.56 (598.47) 23% |
| Sidewall Height inches (mm) | 4.8 (122) | 8.55 (217.25) | 3.75 (95.25) 78.1% |
| Revolutions per mile (km) | 618.53 (384.34) | 502.87 (312.47) | -115.67 (-71.87) -18.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.6 mph (39.59 km/h) |
| 25 mph (40.23 km/h) | 30.75 mph (49.49 km/h) |
| 30 mph (48.28 km/h) | 36.9 mph (59.39 km/h) |
| 35 mph (56.33 km/h) | 43.05 mph (69.28 km/h) |
| 40 mph (64.37 km/h) | 49.2 mph (79.18 km/h) |
| 45 mph (72.42 km/h) | 55.35 mph (89.08 km/h) |
| 50 mph (80.47 km/h) | 61.5 mph (98.98 km/h) |
| 55 mph (88.51 km/h) | 67.65 mph (108.87 km/h) |
| 60 mph (96.56 km/h) | 73.8 mph (118.77 km/h) |
| 65 mph (104.61 km/h) | 79.95 mph (128.67 km/h) |
| 70 mph (112.65 km/h) | 86.1 mph (138.57 km/h) |
| 75 mph (120.7 km/h) | 92.25 mph (148.46 km/h) |
| 80 mph (128.75 km/h) | 98.4 mph (158.36 km/h) |
| 85 mph (136.79 km/h) | 104.55 mph (168.26 km/h) |
| 90 mph (144.84 km/h) | 110.7 mph (178.16 km/h) |
| 95 mph (152.89 km/h) | 116.85 mph (188.05 km/h) |
| 100 mph (160.93 km/h) | 123 mph (197.95 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1280 | 1487 | 1601 | 1672 | 1748 | 1802 | 1862 | 1933 | 2031 | 2129 | 2238 | 2325 | 2483 | 2657 | 2794 | 2881 | 2930 | 3109 | 3360 | 3904 |
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