Air Density Calculator

Air Density Calculator calculator can be used to calculate the density of air based on temperature, pressure, and humidity.

Input Parameters

Calculation Results

Calculation Formula

ρ = 1.225 * (P / (P0 * (1 + (T / 273.15)))) * (1 - 0.21 * RH / 100)

Where:
ρ = Air density (kg/m³)
P = Actual pressure (hPa)
P0 = Sea level standard atmospheric pressure (1013.25 hPa)
T = Temperature (°C)
RH = Relative humidity (%)

Air Density Calculator Calculator Usage Guide

Learn how to use the Air Density Calculator calculator and its working principles

How to Use the Air Density Calculator

  1. Enter the temperature of the air in degrees Celsius (°C).
  2. Enter the actual atmospheric pressure in hPa.
  3. Enter the relative humidity of the air as a percentage.
  4. Click the "Calculate" button to compute the air density.
  5. The result will be displayed in kilograms per cubic meter (kg/m³).

Working Principle

Air density is the mass of air per unit volume. It is affected by temperature, pressure, and humidity. The calculator uses the following formula to calculate air density:

ρ = 1.225 * (P / (P0 * (1 + (T / 273.15)))) * (1 - 0.21 * RH / 100)

Where:

  • ρ = Air density (kg/m³)
  • P = Actual pressure (hPa)
  • P0 = Sea level standard atmospheric pressure (1013.25 hPa)
  • T = Temperature (°C)
  • RH = Relative humidity (%)

Applications

Air density is an important parameter in various fields such as:

  • Aerospace engineering
  • Weather forecasting
  • Industrial processes
  • HVAC (Heating, Ventilation, and Air Conditioning) systems