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Watts per Meter-Kelvin to BTU-Inches per Hour-Sq. Foot-°F Converter

Enter the thermal conductivity in watts per meter-kelvin below to convert it to btu-inches per hour-sq. foot-°f.

Convert Watts per Meter-Kelvin to BTU-Inches per Hour-Sq. Foot-°F

Enter a value in watts per meter-kelvin (W/(m·K)) to convert to btu-inches per hour-sq. foot-°f (BTU·in/(h·ft²·°F)).

Result
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34.66735896btu-inches per hour-sq. foot-°f
5 W/(m·K) = 34.66735896 BTU·in/(h·ft²·°F)
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Reference:NIST OWM (SI Units — Length)
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Watt per Meter-Kelvin to BTU-Inch per Hour-Sq. Foot-°F Conversion Table

Table showing various watt per meter-kelvin measurements converted to btu-inches per hour-sq. foot-°f. Click any preset value or arrow to load it into the converter.

How to Convert Watts per Meter-Kelvin to BTU-Inches per Hour-Sq. Foot-°F

To convert watts per meter-kelvin to btu-inches per hour-sq. foot-°f, multiply the thermal conductivity by the following conversion ratio: 6.9334718 btu-inches per hour-sq. foot-°f/watt per meter-kelvin.

Since one watt per meter-kelvin is equal to 6.9334718 btu-inches per hour-sq. foot-°f, you can use this simple formula to convert:

btu-inches per hour-sq. foot-°f = watts per meter-kelvin × 6.9334718

The thermal conductivity in btu-inches per hour-sq. foot-°f is equal to the thermal conductivity in watts per meter-kelvin multiplied by 6.9334718.

For example, here's how to convert 5 watts per meter-kelvin to btu-inches per hour-sq. foot-°f using the formula above.

btu-inches per hour-sq. foot-°f = (5 W/(m·K) × 6.9334718) = 34.667359 BTU·in/(h·ft²·°F)

How Many BTU-Inches per Hour-Sq. Foot-°F Are in a Watt per Meter-Kelvin?

There are 6.9334718 btu-inches per hour-sq. foot-°f in a watt per meter-kelvin, which is why we use this value in the formula above.

1 W/(m·K) = 6.9334718 BTU·in/(h·ft²·°F)|1 BTU·in/(h·ft²·°F) = 0.1442279 W/(m·K)

Our watt per meter-kelvin to btu-inch per hour-sq. foot-°f calculator automatically converts your thermal conductivity measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.

Watts per Meter-Kelvin and btu-inches per hour-sq. foot-°f are both units used to measure thermal conductivity. Keep reading to learn more about each unit.

What Is a Watt per Meter-Kelvin?

Coherent SI unit of thermal conductivity. It serves as a primary reference unit for measuring thermal conductivity across scientific and practical applications. [1]

The watt per meter-kelvin is classified as an International System of Units (SI) unit of thermal conductivity. Watts per Meter-Kelvin can be abbreviated as W/(m·K); for example, 1 watt per meter-kelvin can be written as 1 W/(m·K).

As the primary coherent reference unit for thermal conductivity in this category, all other thermal conductivity units are mathematically anchored to the watt per meter-kelvin (W/(m·K)).

In practice, watts per meter-kelvin (W/(m·K)) are widely used across standard thermal conductivity applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.

What Is a BTU-Inch per Hour-Sq. Foot-°F?

A btu-inch per hour-sq. foot-°f is a unit of thermal conductivity equal to 0.1442279 watts per meter-kelvin (W/(m·K)), the base unit for thermal conductivity. US building insulation k-factor unit (≈ 0.1442 W/(m·K)). [2]

The btu-inch per hour-sq. foot-°f is classified as a US customary unit of thermal conductivity. BTU-Inches per Hour-Sq. Foot-°F can be abbreviated as BTU·in/(h·ft²·°F); for example, 1 btu-inch per hour-sq. foot-°f can be written as 1 BTU·in/(h·ft²·°F).

When working with btu-inches per hour-sq. foot-°f (BTU·in/(h·ft²·°F)) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.

In practice, btu-inches per hour-sq. foot-°f (BTU·in/(h·ft²·°F)) are widely used across standard thermal conductivity applications within US customary workflows, engineering documentation, and technical data sheets.

When converting thermal conductivity between watts per meter-kelvin (W/(m·K)) and btu-inches per hour-sq. foot-°f (BTU·in/(h·ft²·°F)), keep full floating-point precision (1 W/(m·K) = 6.9334718 BTU·in/(h·ft²·°F); 1 BTU·in/(h·ft²·°F) = 0.1442279 W/(m·K)) during intermediate calculations and round only the final btu-inch per hour-sq. foot-°f figure to match your instrument tolerance.

More Watt per Meter-Kelvin & BTU-Inch per Hour-Sq. Foot-°F Conversions

Need to calculate in the opposite direction? Use our btu-inches per hour-sq. foot-°f to watts per meter-kelvin calculator to switch your starting unit immediately. You can also explore related tools such as converting btu-inches per hour-sq. foot-°f to watts per meter-kelvin, converting watts per meter-kelvin to watts per centimeter-°c, or converting watts per meter-kelvin to kilowatts per meter-kelvin.

Frequently Asked Questions

There are 6.93347 btu-inches per hour-sq. foot-°f (BTU·in/(h·ft²·°F)) in 1 watt per meter-kelvin (W/(m·K)). Conversely, 1 btu-inch per hour-sq. foot-°f (BTU·in/(h·ft²·°F)) is equal to 0.14423 watts per meter-kelvin (W/(m·K)).

References

NIST · BIPM · ISO
  1. [1]
    NIST OWM (SI Units — Length)·Thermal Conductivity Metrology Standard — Watts per Meter-Kelvin (W/(m·K)) to BTU-Inches per Hour-Sq. Foot-°F (BTU·in/(h·ft²·°F))
    NIST OWM Standard
  2. [2]
    BIPM (SI Base Unit: Metre (m))·Unit Specifications: Watt per Meter-Kelvin (W/(m·K)) & BTU-Inch per Hour-Sq. Foot-°F (BTU·in/(h·ft²·°F))
    BIPM Specification
  3. [3]
    NIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (W/(m·K) to BTU·in/(h·ft²·°F))
    NIST HB 133 Reference
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