Effect of altitude and temperature on air density
Multiply standard air density (1.20 kg/m3) by the factor in body of table to obtain density
Altitude (km above sea level) |
|||||||||||||
-0.30 | Sea level | 0.30 | 0.61 | 0.91 | 1.22 | 1.52 | 1.83 | 2.13 | 2.44 | 2.74 | 3.05 | ||
Barometer | mm Hg |
787.1 |
759.2 |
732.3 |
705.9 |
680.6 |
655.7 |
631.8 |
608.5 |
585.9 |
563.8 |
542.8 |
522.2 |
kPa |
105.0 |
101.3 |
97.67 |
94.14 |
90.76 |
87.45 |
84.27 |
81.16 |
78.15 |
75.12 |
72.38 |
69.65 |
|
Air temp. °C |
-40 |
1.31 | 1.26 | 1.22 | 1.17 | 1.13 | 1.09 | 1.05 | 1.01 | 0.97 | 0.93 | 0.90 | 0.87 |
-18 |
1.19 | 1.15 | 1.11 | 1.07 | 1.03 | 0.99 | 0.95 | 0.91 | 0.89 | 0.85 | 0.82 | 0.79 | |
4 |
1.10 | 1.06 | 1.02 | 0.99 | 0.95 | 0.92 | 0.88 | 0.85 | 0.82 | 0.79 | 0.76 | 0.73 | |
21 |
1.04 | 1.00 | 0.96 | 0.93 | 0.89 | 0.86 | 0.83 | 0.80 | 0.77 | 0.74 | 0.71 | 0.69 | |
38 |
0.98 | 0.95 | 0.92 | 0.88 | 0.85 | 0.81 | 0.78 | 0.75 | 0.73 | 0.70 | 0.68 | 0.65 | |
66 |
0.90 | 0.87 | 0.84 | 0.81 | 0.78 | 0.75 | 0.72 | 0.69 | 0.67 | 0.65 | 0.62 | 0.60 | |
93 |
0.83 | 0.80 | 0.77 | 0.74 | 0.71 | 0.69 | 0.66 | 0.64 | 0.62 | 0.60 | 0.57 | 0.55 | |
121 |
0.77 | 0.75 | 0.72 | 0.70 | 0.67 | 0.64 | 0.62 | 0.60 | 0.58 | 0.56 | 0.58 | 0.51 | |
149 |
0.72 | 0.70 | 0.67 | 0.65 | 0.62 | 0.60 | 0.58 | 0.56 | 0.54 | 0.52 | 0.50 | 0.48 | |
177 |
0.68 | 0.65 | 0.62 | 0.60 | 0.58 | 0.56 | 0.54 | 0.52 | 0.51 | 0.49 | 0.47 | 0.45 | |
204 |
0.64 | 0.62 | 0.60 | 0.57 | 0.55 | 0.53 | 0.51 | 0.49 | 0.48 | 0.46 | 0.44 | 0.42 | |
232 |
0.60 | 0.58 | 0.56 | 0.54 | 0.52 | 0.50 | 0.48 | 0.46 | 0.45 | 0.43 | 0.42 | 0.40 | |
260 |
0.57 | 0.55 | 0.53 | 0.51 | 0.49 | 0.47 | 0.45 | 0.44 | 0.43 | 0.41 | 0.39 | 0.38 | |
288 |
0.54 | 0.53 | 0.51 | 0.49 | 0.47 | 0.45 | 0.44 | 0.42 | 0.41 | 0.39 | 0.38 | 0.36 | |
316 |
0.52 | 0.50 | 0.48 | 0.46 | 0.45 | 0.43 | 0.41 | 0.40 | 0.39 | 0.37 | 0.35 | 0.34 | |
371 |
0.47 | 0.46 | 0.44 | 0.43 | 0.41 | 0.39 | 0.38 | 0.37 | 0.35 | 0.34 | 0.33 | 0.32 | |
427 |
0.44 | 0.42 | 0.40 | 0.39 | 0.37 | 0.36 | 0.35 | 0.33 | 0.32 | 0.31 | 0.30 | 0.29 | |
482 |
0.40 | 0.39 | 0.37 | 0.36 | 0.35 | 0.33 | 0.32 | 0.31 | 0.30 | 0.29 | 0.28 | 0.27 | |
538 |
0.37 | 0.36 | 0.35 | 0.33 | 0.32 | 0.31 | 0.30 | 0.29 | 0.27 | 0.26 | 0.26 | 0.25 |