What does Btu (th) inch/hour/sq. foot/°F measure?

It measures thermal conductivity indicating heat flow through a material 1 inch thick and 1 square foot in area for a 1 °F temperature difference.

Why convert to watt/meter/K [W/(m*K)]?

Watt per meter per kelvin is the SI derived unit widely used internationally for consistency in thermal conductivity calculations.

Can this tool be used for building insulation evaluation?

Yes, it helps specify insulation performance and supports HVAC sizing and energy modeling.

How to Convert from Btu (th) inch/hour/sq. foot/°F to Watt/meter/K [W/(m*K)]?

Learn how to convert thermal conductivity values from Btu (th) inch/hour/sq. foot/°F to Watt per meter per kelvin using our easy online converter. Understand the differences and applications of these units in building science and engineering.

Btu (th) inch/hour/sq. foot/°F

Watt/meter/K [W/(m*K)]

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Btu (th) inch/hour/sq. foot/°F to Watt/meter/K [W/(m*K)] Conversion Table

Btu (th) inch/hour/sq. foot/°F	Watt/meter/K [W/(m*K)]

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.

Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

Btu (th) inch/hour/sq. foot/°F to Watt/meter/K [W/(m*K)] Conversion Table
Btu (th) inch/hour/sq. foot/°F	Watt/meter/K [W/(m*K)]

Explore More Thermal Conductivity Units Converter

What Is This Tool?

This unit converter changes thermal conductivity measurements from Btu (th) inch/hour/sq. foot/°F, used mainly in U.S. customary engineering, to the SI unit Watt per meter per kelvin. It helps quantify how heat transfers through materials across different measurement systems.

How to Use This Tool?

Enter the thermal conductivity value in Btu (th) inch/hour/sq. foot/°F.
Select the target unit watt/meter/K [W/(m*K)] for conversion.
Click the convert button to see the equivalent value in watts per meter per kelvin.

Key Features

Converts thermal conductivity values between U.S. customary and SI units.
Supports the specific units Btu (th) inch/hour/sq. foot/°F and watt/meter/K [W/(m*K)].
Browser-based and easy to use for engineers, scientists, and construction professionals.
Facilitates standardized thermal calculations and comparisons across international contexts.

Examples

2 Btu (th) inch/hour/sq. foot/°F converts to approximately 0.2882628676 W/(m·K).
5 Btu (th) inch/hour/sq. foot/°F converts to approximately 0.720657169 W/(m·K).

Common Use Cases

Determining thermal conductivity (k-value) for insulation materials like foam and boards.
Calculating heat transfer and energy loss in building envelopes including walls and roofs.
Translating thermal conductivity to R-values for insulation resistance calculations.
Designing heat sinks and thermal management in electronics and power equipment.
Modeling geothermal and geotechnical heat transfer properties in soil and rock.

Tips & Best Practices

Ensure units are correctly interpreted between inch/sq. foot/F and meter/K to avoid errors.
Use this conversion tool to standardize values when working across different measurement systems.
Verify temperature scales when integrating data from various sources.
Apply the conversion to support building energy modeling, HVAC design, and materials research.

Limitations

Conversion requires careful handling of differing dimension units and temperature scales.
Users must maintain dimensional consistency since original units include inch and square foot, while target units use meters.
Temperature difference is expressed in °F in fromUnit and kelvin in toUnit, requiring attention in calculations.

Frequently Asked Questions

What does Btu (th) inch/hour/sq. foot/°F measure?: It measures thermal conductivity indicating heat flow through a material 1 inch thick and 1 square foot in area for a 1 °F temperature difference.
Why convert to watt/meter/K [W/(m*K)]?: Watt per meter per kelvin is the SI derived unit widely used internationally for consistency in thermal conductivity calculations.
Can this tool be used for building insulation evaluation?: Yes, it helps specify insulation performance and supports HVAC sizing and energy modeling.

Key Terminology

Btu (th) inch/hour/sq. foot/°F: A thermal conductivity unit showing heat transmitted in Btu per hour through 1 inch thickness and 1 square foot area for 1 °F temperature difference.
Watt/meter/K [W/(m*K)]: The SI unit of thermal conductivity indicating heat flow per meter thickness and per kelvin temperature gradient.
Thermal Conductivity: A material property describing the rate at which heat passes through a unit thickness with a unit temperature difference.

Quick Knowledge Check

Which unit expresses thermal conductivity in U.S. customary terms?

Watt/meter/K [W/(m*K)]

Btu (th) inch/hour/sq. foot/°F

Degree Celsius per meter

What does the Watt/meter/K [W/(m*K)] unit quantify?

Heat flow per square foot per hour

Heat transfer rate per meter thickness and temperature gradient

Energy consumption per hour

Why must users be cautious when converting these units?

Because the fromUnit and toUnit use different length and temperature scales

Because conversion is approximate and not precise

Because the units represent different physical properties

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