Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/25-23 | 325/25-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.2 (741.7) | 26.4 (670.5) | -2.8 (-71.2) -9.6% |
| Width inches (mm) | 12.4 (315) | 12.8 (325) | 0.39 (10) 3.2% |
| Circum. inches (mm) | 91.74 (2330.12) | 82.93 (2106.44) | -8.81 (-223.68) -9.6% |
| Sidewall Height inches (mm) | 3.1 (78.75) | 3.2 (81.25) | 0.1 (2.5) 3.2% |
| Revolutions per mile (km) | 690.67 (429.16) | 764.01 (474.73) | 73.34 (45.57) 10.6% |
325/25-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.08 mph (29.1 km/h) |
| 25 mph (40.23 km/h) | 22.6 mph (36.37 km/h) |
| 30 mph (48.28 km/h) | 27.12 mph (43.65 km/h) |
| 35 mph (56.33 km/h) | 31.64 mph (50.92 km/h) |
| 40 mph (64.37 km/h) | 36.16 mph (58.19 km/h) |
| 45 mph (72.42 km/h) | 40.68 mph (65.47 km/h) |
| 50 mph (80.47 km/h) | 45.2 mph (72.74 km/h) |
| 55 mph (88.51 km/h) | 49.72 mph (80.02 km/h) |
| 60 mph (96.56 km/h) | 54.24 mph (87.29 km/h) |
| 65 mph (104.61 km/h) | 58.76 mph (94.57 km/h) |
| 70 mph (112.65 km/h) | 63.28 mph (101.84 km/h) |
| 75 mph (120.7 km/h) | 67.8 mph (109.11 km/h) |
| 80 mph (128.75 km/h) | 72.32 mph (116.39 km/h) |
| 85 mph (136.79 km/h) | 76.84 mph (123.66 km/h) |
| 90 mph (144.84 km/h) | 81.36 mph (130.94 km/h) |
| 95 mph (152.89 km/h) | 85.88 mph (138.21 km/h) |
| 100 mph (160.93 km/h) | 90.4 mph (145.49 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1944 | 2259 | 2432 | 2540 | 2656 | 2739 | 2830 | 2937 | 3086 | 3235 | 3400 | 3533 | 3773 | 4037 | 4244 | 4377 | 4451 | 4724 | 5105 | 5932 |
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