Enter the thermal resistance of a material in m²·K/W into the calculator to determine its Clo value. The Clo value is a measure of the thermal insulation provided by clothing and other textiles.
Clo Value Formula
The following formula is used to calculate the Clo value.
Clo = R / 0.155
Variables:
- Clo is the Clo value, which represents the thermal insulation provided by clothing.
- R is the thermal resistance of the material (m²·K/W).
To calculate the Clo value, divide the thermal resistance of the material by 0.155.
What is a Clo Value?
The Clo value is a standard unit of measurement that quantifies the thermal insulation provided by clothing and textiles. One Clo is equal to the amount of insulation that allows a person at rest to maintain thermal equilibrium at a temperature of 21°C (70°F) in a normally ventilated room (0.1 m/s air movement). The higher the Clo value, the greater the insulation and the warmer the garment will keep a person.
How to Calculate Clo Value?
The following steps outline how to calculate the Clo Value.
- First, determine the thermal resistance of the material (R) in m²·K/W.
- Next, gather the formula from above = Clo = R / 0.155.
- Finally, calculate the Clo Value.
- After inserting the variable and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variable as an example problem to test your knowledge.
Thermal resistance of the material (R) = 0.310 m²·K/W
