PDAS home > Contents > Standard Atmosphere > Table (SI units)
Public Domain Aeronautical Software (PDAS)  

In this table from -0.5 to 20 km in 0.5 km intervals

alt is altitude in kilometers.
sigma is density divided by sea-level density.
delta is pressure divided by sea-level pressure.
theta is temperature divided by sea-level temperature.
temp is temperature in kelvins.
press is pressure in newtons per square meter.
dens is density in kilograms per cubic meter.
a is the speed of sound in meters per second.
visc is viscosity in 10**(-6) kilograms per meter-second.
k.visc is kinematic viscosity in square meters per second.
ratio is 10**(-6) times speed of sound divided by kinematic viscosity (1/m)

alt sigma delta theta temp press dens a visc k.visc ratio -0.5 1.0489 1.0607 1.0113 291.4 107477 1.285 342.2 18.05 1.40E-5 24.36 0.0 1.0000 1.0000 1.0000 288.1 101325 1.225 340.3 17.89 1.46E-5 23.30 0.5 0.9529 0.9421 0.9887 284.9 95461 1.167 338.4 17.74 1.52E-5 22.27 1.0 0.9075 0.8870 0.9774 281.7 89876 1.112 336.4 17.58 1.58E-5 21.28 1.5 0.8638 0.8345 0.9662 278.4 84559 1.058 334.5 17.42 1.65E-5 20.32 2.0 0.8217 0.7846 0.9549 275.2 79501 1.007 332.5 17.26 1.71E-5 19.39 2.5 0.7812 0.7372 0.9436 271.9 74691 0.957 330.6 17.10 1.79E-5 18.50 3.0 0.7422 0.6920 0.9324 268.7 70121 0.909 328.6 16.94 1.86E-5 17.64 3.5 0.7048 0.6492 0.9211 265.4 65780 0.863 326.6 16.78 1.94E-5 16.81 4.0 0.6689 0.6085 0.9098 262.2 61660 0.819 324.6 16.61 2.03E-5 16.01 4.5 0.6343 0.5700 0.8986 258.9 57752 0.777 322.6 16.45 2.12E-5 15.24 5.0 0.6012 0.5334 0.8873 255.7 54048 0.736 320.5 16.28 2.21E-5 14.50 5.5 0.5694 0.4988 0.8760 252.4 50539 0.697 318.5 16.12 2.31E-5 13.78 6.0 0.5389 0.4660 0.8648 249.2 47217 0.660 316.5 15.95 2.42E-5 13.10 6.5 0.5096 0.4350 0.8535 245.9 44075 0.624 314.4 15.78 2.53E-5 12.44 7.0 0.4816 0.4057 0.8423 242.7 41105 0.590 312.3 15.61 2.65E-5 11.80 7.5 0.4548 0.3780 0.8310 239.5 38299 0.557 310.2 15.44 2.77E-5 11.19 8.0 0.4292 0.3519 0.8198 236.2 35651 0.526 308.1 15.27 2.90E-5 10.61 8.5 0.4047 0.3272 0.8085 233.0 33154 0.496 306.0 15.10 3.05E-5 10.05 9.0 0.3813 0.3040 0.7973 229.7 30800 0.467 303.8 14.93 3.20E-5 9.51 9.5 0.3589 0.2821 0.7860 226.5 28584 0.440 301.7 14.75 3.36E-5 8.99 10.0 0.3376 0.2615 0.7748 223.3 26499 0.414 299.5 14.58 3.53E-5 8.50 10.5 0.3172 0.2422 0.7635 220.0 24540 0.389 297.4 14.40 3.71E-5 8.02 11.0 0.2978 0.2240 0.7523 216.8 22699 0.365 295.2 14.22 3.90E-5 7.57 11.5 0.2755 0.2071 0.7519 216.6 20984 0.337 295.1 14.22 4.21E-5 7.00 12.0 0.2546 0.1915 0.7519 216.6 19399 0.312 295.1 14.22 4.56E-5 6.47 12.5 0.2354 0.1770 0.7519 216.6 17933 0.288 295.1 14.22 4.93E-5 5.99 13.0 0.2176 0.1636 0.7519 216.6 16579 0.267 295.1 14.22 5.33E-5 5.53 13.5 0.2012 0.1513 0.7519 216.6 15327 0.246 295.1 14.22 5.77E-5 5.12 14.0 0.1860 0.1398 0.7519 216.6 14170 0.228 295.1 14.22 6.24E-5 4.73 14.5 0.1720 0.1293 0.7519 216.6 13100 0.211 295.1 14.22 6.75E-5 4.37 15.0 0.1590 0.1195 0.7519 216.6 12111 0.195 295.1 14.22 7.30E-5 4.04 15.5 0.1470 0.1105 0.7519 216.6 11197 0.180 295.1 14.22 7.90E-5 3.74 16.0 0.1359 0.1022 0.7519 216.6 10352 0.166 295.1 14.22 8.54E-5 3.46 16.5 0.1256 0.0945 0.7519 216.6 9571 0.154 295.1 14.22 9.24E-5 3.19 17.0 0.1162 0.0873 0.7519 216.6 8849 0.142 295.1 14.22 9.99E-5 2.95 17.5 0.1074 0.0808 0.7519 216.6 8182 0.132 295.1 14.22 1.08E-4 2.73 18.0 0.0993 0.0747 0.7519 216.6 7565 0.122 295.1 14.22 1.17E-4 2.52 18.5 0.0918 0.0690 0.7519 216.6 6994 0.112 295.1 14.22 1.26E-4 2.33 19.0 0.0849 0.0638 0.7519 216.6 6467 0.104 295.1 14.22 1.37E-4 2.16 19.5 0.0785 0.0590 0.7519 216.6 5979 0.096 295.1 14.22 1.48E-4 2.00 20.0 0.0726 0.0546 0.7519 216.6 5529 0.089 295.1 14.22 1.60E-4 1.85

PDAS home > Contents > Standard Atmosphere > Table (SI units)
Public Domain Aeronautical Software (PDAS)