Dynamic viscosity of dry air vs temperature
Dry air at 1 atm from −50 to 300 °C — the ideal-gas density and Sutherland viscosity behind every duct, fan and drag calculation.
Dynamic viscosity in mPa·s, from -50 to 300 °C. The chart and the table below are the same numbers; the table is the one you can copy.
Dry air — everything else at 20 °C (default)
| Density | 1.2041 kg/m³ |
| Specific heat | 1.0068 kJ/(kg·K) |
| Thermal conductivity | 0.025706 W/(m·K) |
Dynamic viscosity by temperature
| Temperature (°C) | Dynamic viscosity (mPa·s) |
|---|---|
| -50 | 0.01457 |
| -25 | 0.015895 |
| 0 | 0.01716 |
| 25 | 0.018371 |
| 50 | 0.019535 |
| 75 | 0.020654 |
| 100 | 0.021733 |
| 125 | 0.022776 |
| 150 | 0.023785 |
| 175 | 0.024763 |
| 200 | 0.025713 |
| 225 | 0.026637 |
| 250 | 0.027536 |
| 275 | 0.028412 |
| 300 | 0.029266 |
Ideal gas law with R = 287.0528 J/(kg·K); Sutherland (1893) viscosity; Incropera, Fundamentals of Heat and Mass Transfer, Table A.4 for cp and k · validated -50 to 300 °C · closed-form correlation, no interpolation table behind it