Altitude Versus Barometric Pressure
Determine the current vehicle testing altitude. The following table illustrates the relation between altitude and barometric pressure:
| Altitude | Barometric Pressure |
|---|---|
| 4,267 m (14,000 ft) | 56 to 64 kPa (8.1 to 9.3 PSI) |
| 3,962 m (13,000 ft) | 58 to 66 kPa (8.4 to 9.6 PSI) |
| 3,658 m (12,000 ft) | 61 to 69 kPa (8.8 to 10.0 PSI) |
| 3,353 m (11,000 ft) | 64 to 72 kPa (9.3 to 10.4 PSI) |
| 3,048 m (10,000 ft) | 66 to 74 kPa (9.6 to 10.7 PSI) |
| 2,743 m (9,000 ft) | 69 to 77 kPa (10.0 to 11.2 PSI) |
| 2,438 m (8,000 ft) | 71 to 79 kPa (10.3 to 11.5 PSI) |
| 2,134 m (7,000 ft) | 74 to 82 kPa (10.7 to 11.9 PSI) |
| 1,829 m (6,000 ft) | 77 to 85 kPa (11.2 to 12.3 PSI) |
| 1,524 m (5,000 ft) | 80 to 88 kPa (11.6 to 12.8 PSI) |
| 1,219 m (4,000 ft) | 83 to 91 kPa (12.0 to 13.2 PSI) |
| 914 m (3,000 ft) | 87 to 95 kPa (12.6 to 13.8 PSI) |
| 610 m (2,000 ft) | 90 to 98 kPa (13.1 to 14.2 PSI) |
| 305 m (1,000 ft) | 94 to 102 kPa (13.6 to 14.8 PSI) |
| 0 m (0 ft) | 96 to 104 kPa (13.9 to 15.1 PSI) |
| −305 m (−1,000 ft) | 101 to 105 kPa (14.6 to 15.2 PSI) |