Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/55-15 | 215/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.01 (584.5) | 26 (660.5) | 2.99 (76) 13% |
| Width inches (mm) | 7.28 (185) | 8.46 (215) | 1.18 (30) 16.2% |
| Circum. inches (mm) | 72.29 (1836.26) | 81.69 (2075.02) | 9.4 (238.76) 13% |
| Sidewall Height inches (mm) | 4.01 (101.75) | 5.5 (139.75) | 1.5 (38) 37.3% |
| Revolutions per mile (km) | 876.42 (544.58) | 775.58 (481.92) | -100.85 (-62.66) -11.5% |
215/65-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.6 mph (36.37 km/h) |
| 25 mph (40.23 km/h) | 28.25 mph (45.47 km/h) |
| 30 mph (48.28 km/h) | 33.9 mph (54.56 km/h) |
| 35 mph (56.33 km/h) | 39.55 mph (63.65 km/h) |
| 40 mph (64.37 km/h) | 45.2 mph (72.74 km/h) |
| 45 mph (72.42 km/h) | 50.85 mph (81.84 km/h) |
| 50 mph (80.47 km/h) | 56.5 mph (90.93 km/h) |
| 55 mph (88.51 km/h) | 62.15 mph (100.02 km/h) |
| 60 mph (96.56 km/h) | 67.8 mph (109.12 km/h) |
| 65 mph (104.61 km/h) | 73.45 mph (118.21 km/h) |
| 70 mph (112.65 km/h) | 79.1 mph (127.3 km/h) |
| 75 mph (120.7 km/h) | 84.75 mph (136.4 km/h) |
| 80 mph (128.75 km/h) | 90.4 mph (145.49 km/h) |
| 85 mph (136.79 km/h) | 96.05 mph (154.58 km/h) |
| 90 mph (144.84 km/h) | 101.7 mph (163.67 km/h) |
| 95 mph (152.89 km/h) | 107.35 mph (172.77 km/h) |
| 100 mph (160.93 km/h) | 113 mph (181.86 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1974 | 2293 | 2469 | 2578 | 2696 | 2780 | 2872 | 2982 | 3133 | 3284 | 3452 | 3586 | 3830 | 4099 | 4309 | 4443 | 4519 | 4796 | 5182 | 6022 |
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