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Air Density and Specific Weight Calculator

Calculation

Inputs



degC
:-25​



Acceleration due to Gravity m/s^2
:9.81​



Output



Density kg/m^3
:1.422​



ρ = m/Vρ\ =\ m/V


Specific Weight N/m3
:13.94982​



γ = (m∗g)/V=ρ∗gγ\ =\ (m * g)/V = ρ * g

Density Converter

Input value to convert here:

kg/m3
:4​

Results


g/cm3
:0.004​



oz/in3
:0.00231216​



oz/gal(lmp)
:0.6417432​



oz/gal(US liq)
:0.534104​



long ton/yd3
:0.003010192​



lb/ft3
:0.249712​



lb/in3
:0.000144508​



lb/yd3
:6.7422​



lb/gal(lmp)
:0.0400896​



lb/gal(US liq)
:0.0333816​


Air Density and Specific Weight



Explanation

Density

Density is a physical property of matter that refers to the mass amount in a given volume. It is usually expressed in units such as grams per cubic centimetre (g/cm^3) or kilograms per cubic meter (kg/m^3). The density of an object can be calculated by dividing its mass by its volume.

ρ = m/Vρ\ =\ m/V

Where:ρ=density, units typically [kg/m3] or [lb/ft3]m=mass, units typically [kg] or [lb]V=volume, units typically [m3] or [ft3]\text{Where:}\\ρ = \text{density,\ units\ typically}\ [kg/m^3]\ \text{or}\ [lb/ft^3]\\m = \text{mass,\ units\ typically}\ [kg]\ \text{or}\ [lb]\\V = \text{volume,\ units\ typically}\ [m^3]\ \text{or}\ [ft^3]


Specific Weight

Specific weight, or unit weight, is a material's weight per unit volume. It is often used in fluid mechanics and soil mechanics to represent the force exerted by gravity on a unit volume of a material. Specific weight can be calculated by multiplying the material's density by the acceleration due to gravity.

γ = (m∗g)/V=ρ∗gγ\ =\ (m * g)/V = ρ * g

Where:γ=specific weight, units typically [N/m3] or [lbf/ft3]m=mass, units typically [g] or [lb]g=acceleration due to gravity [m/s2] On Earth 9.81 m/s2 or 32.17 ft/s2V=volume, units typically [cm3] textor [ft3]ρ=density, units typically [g/cm3] or [lb/ft3]\text{Where:}\\γ = \text{specific\ weight,\ units\ typically}\ [N/m^3]\ \text{or}\ [lbf/ft^3]\\m = \text{mass,\ units\ typically}\ [g]\ \text{or}\ [lb]\\g = \text{acceleration\ due\ to\ gravity}\ [m/s^2]\ \text{On\ Earth}\ 9.81\ m/s^2\ \text{or}\ 32.17\ ft/s^2\\V = volume,\ units\ typically\ [cm^3]\ text{or}\ [ft^3]\\ρ = \text{density,\ units\ typically}\ [g/cm^3]\ \text{or}\ [lb/ft^3]

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