Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/50-17 | 245/40-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.46 (646.8) | 24.72 (627.8) | -0.75 (-19) -2.9% |
| Width inches (mm) | 8.46 (215) | 9.65 (245) | 1.18 (30) 14% |
| Circum. inches (mm) | 80 (2031.98) | 77.65 (1972.29) | -2.35 (-59.69) -2.9% |
| Sidewall Height inches (mm) | 4.23 (107.5) | 3.86 (98) | -0.37 (-9.5) -8.8% |
| Revolutions per mile (km) | 792.01 (492.13) | 815.98 (507.02) | 23.97 (14.89) 3% |
245/40-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.41 mph (31.24 km/h) |
| 25 mph (40.23 km/h) | 24.27 mph (39.05 km/h) |
| 30 mph (48.28 km/h) | 29.12 mph (46.86 km/h) |
| 35 mph (56.33 km/h) | 33.97 mph (54.67 km/h) |
| 40 mph (64.37 km/h) | 38.82 mph (62.48 km/h) |
| 45 mph (72.42 km/h) | 43.68 mph (70.29 km/h) |
| 50 mph (80.47 km/h) | 48.53 mph (78.1 km/h) |
| 55 mph (88.51 km/h) | 53.38 mph (85.91 km/h) |
| 60 mph (96.56 km/h) | 58.24 mph (93.72 km/h) |
| 65 mph (104.61 km/h) | 63.09 mph (101.53 km/h) |
| 70 mph (112.65 km/h) | 67.94 mph (109.35 km/h) |
| 75 mph (120.7 km/h) | 72.8 mph (117.16 km/h) |
| 80 mph (128.75 km/h) | 77.65 mph (124.97 km/h) |
| 85 mph (136.79 km/h) | 82.5 mph (132.78 km/h) |
| 90 mph (144.84 km/h) | 87.36 mph (140.59 km/h) |
| 95 mph (152.89 km/h) | 92.21 mph (148.4 km/h) |
| 100 mph (160.93 km/h) | 97.06 mph (156.21 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2077 | 2412 | 2598 | 2713 | 2836 | 2925 | 3022 | 3137 | 3296 | 3455 | 3632 | 3773 | 4029 | 4312 | 4533 | 4674 | 4754 | 5045 | 5452 | 6336 |
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