Watt per Meter per Kelvin to BTU (th) Foot per Hour per Square Foot per Degree Fahrenheit Conversion

Convert between Watt per Meter per Kelvin and BTU (th) Foot per Hour per Square Foot per Degree Fahrenheit quickly and accurately.

W/(m·K)
Btu·ft/(h·ft²·°F)

How to Convert Watt per Meter per Kelvin to BTU (th) Foot per Hour per Square Foot per Degree Fahrenheit

Conversion Formula

1 W/(m·K) = 0.578 Btu·ft/(h·ft²·°F)
1 Btu·ft/(h·ft²·°F) = 1.73 W/(m·K)

Example

Convert 15 W/(m·K) to Btu·ft/(h·ft²·°F):

15 W/(m·K) = 15 × 0.578 Btu·ft/(h·ft²·°F) = 8.673 Btu·ft/(h·ft²·°F)

Unit Information

Learn about the thermal conductivity units you're converting between

Watt per Meter per Kelvin

W/(m·K)

Definition

The watt per meter per kelvin (W/(m·K)) is the SI unit of thermal conductivity, representing the amount of heat energy transferred per unit time through a unit area of material with a unit temperature gradient. It quantifies how effectively a material conducts heat, making it essential for thermal analysis and heat transfer calculations in engineering applications.

History/Origin

Derived from the fundamental relationship between heat flux, temperature gradient, and material properties, this unit became standardized with the adoption of the International System of Units. It provides a consistent measure for thermal conductivity across different materials and heat transfer mechanisms, enabling accurate thermal design and analysis.

Current Use

Widely used in thermal engineering, materials science, building insulation, and HVAC system design for calculating heat transfer rates and thermal performance. It is essential for designing thermal management systems, predicting temperature distributions, and optimizing thermal insulation in various applications.

Multiplier

1

Offset

0

BTU (th) Foot per Hour per Square Foot per Degree Fahrenheit

Btu·ft/(h·ft²·°F)

Definition

The BTU (th) foot per hour per square foot per degree Fahrenheit (Btu·ft/(h·ft²·°F)) is an imperial unit of thermal conductivity equal to approximately 1.730 watts per meter per kelvin. It represents the amount of heat energy transferred per unit time through a unit area of material with a unit temperature gradient, commonly used in specialized HVAC applications.

History/Origin

Developed as part of the thermochemical BTU system for HVAC and building thermal applications, this unit became standard in specialized building thermal analysis and thermochemical HVAC system design. It provides a precise measure for thermal conductivity using thermochemical BTU units.

Current Use

Used in specialized HVAC applications, thermochemical building thermal analysis, and research contexts where thermochemical BTU units are specified. It is essential for precise thermal calculations, thermochemical analysis, and specialized building thermal applications.

Multiplier

1.73

Offset

0

Watt per Meter per Kelvin to BTU (th) Foot per Hour per Square Foot per Degree Fahrenheit Conversion Table

Watt per Meter per Kelvin [W/(m·K)] BTU (th) Foot per Hour per Square Foot per Degree Fahrenheit [Btu·ft/(h·ft²·°F)]
1 W/(m·K) 0.578176 Btu·ft/(h·ft²·°F)
10 W/(m·K) 5.78176 Btu·ft/(h·ft²·°F)
25 W/(m·K) 14.4544 Btu·ft/(h·ft²·°F)
50 W/(m·K) 28.908799 Btu·ft/(h·ft²·°F)
100 W/(m·K) 57.817598 Btu·ft/(h·ft²·°F)
0 W/(m·K) 0E+0 Btu·ft/(h·ft²·°F)
-10 W/(m·K) -5.78176 Btu·ft/(h·ft²·°F)
-40 W/(m·K) -23.127039 Btu·ft/(h·ft²·°F)