# Density Altitude Formula and Conversion Calculations

## Our Density Altitude Calculator Formulas

### The Density Altitude Formula and Calculations in Detail

Our Density Altitude Calculator uses complex and precise calculations from weather.gov by Tim Brice and Todd Hall, but provides a modern mobile friendly user interface. The process involves several steps, starting with the calculation of the virtual temperature. It involves more steps than pilots generally want to do by hand and considers additional factors like humidity and precise pressure measurements. This method is more accurate but also more complex, making it better suited for precise applications where detailed environmental data is available. Below we explain all of the formulas and calculations used in our calculator in 3 sections:

## Temperature Conversion Formulas for Density Altitude Calculation

### To convert between Fahrenheit and degrees Celsius :

### To convert between degrees Fahrenheit ( ) and Kelvin (K):

### To convert between degrees Celsius ) and Kelvin (K):

### To convert between degrees ( ∘C ) and Rankine (R):

### To convert between degrees Kelvin (K) and Rankine (R):

## Pressure Conversion Formulas for Density Altitude Calculation

### To convert between inches of mercury ( ) and millimeters of mercury (mmHg) or Torr

### To convert between inches of mercury ( ) and millibars or hectopascals :

### Convert between inches of mercury ( ) and kilopascals

### Convert between inches of mercury ( ) and pounds per square inch ( ):

Use these formulas to convert from inHg to psi:

### Convert between torr or millimeters of mercury ( ) and millibars ) or hectopascals :

Use these formulas to convert from mmHg and mb or hPa to psi:

### Convert between torr or millimeters of mercury ( ) and kilopascals ):

Use these formulas to convert from mmHg and kPa to psi:

### Convert between torr or millimeters of mercury ( ) and kilopascals )

### Convert between torr or millimeters of mercury ) and pounds per square inch ( )

### Convert between millibars or hectopascals and kilopascals

### Convert between millibars or hectopascals and pounds per square inch ( )

### Convert between kilopascals and pounds per square inch ( )

Use these formulas to convert from kPa to psi:

### Convert between standard atmosphere ( ) and millimeters of mercury ( ) or torr

Use these formulas: