FREE TOOL · ATMOSPHERIC PHYSICS
Air density calculator
Air density drops with altitude and temperature, rises with low humidity. Direct effect on NA power and turbo compressor map operating point.
Standard reference
| Conditions | Density | Power impact |
|---|---|---|
| ISA sea-level (15°C, 1013 mbar) | 1.225 kg/m³ | Baseline |
| Hot day @ 30°C (sea level) | 1.165 | -5% NA |
| Cold day @ -10°C (sea level) | 1.342 | +10% NA |
| Denver (1600 m, 15°C) | 1.05 | -14% NA |
| Pikes Peak summit (4300 m) | 0.78 | -36% NA |