Oct 29, 2019 · R = specific gas constant , J/ (kg*degK) = 287.05 for dry air. T = temperature, deg K = deg C + 273.15. As an example, using the ISA standard sea level conditions of P = 101325 Pa and T = 15 deg C, the air density at sea level, may be calculated as: D = (101325) / (287.05 * (15 + 273.15)) = 1.2250 kg/m 3. Download by size: Handphone Tablet Desktop (Original Size) The metric system enables you to convert units by altering the decimal to brand-new place value. The U.S. system doesn’t utilize multiples of 10. To convert temperature from Fahrenheit to Celsius in python, you have to ask from user to enter temperature in Fahrenheit to convert that temperature into Celsius as shown in the program given below. Let's suppose there is f temperature given in fahrenheit and you have to convert it into celsius then use the following conversion factor.