Thermal Conductivity Converter

Convert between different units of thermal conductivity with precision and ease.

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Thermal Conductivity Converter

Instant conversion between thermal conductivity units

0.578

⚡ Popular Conversions

About Thermal Conductivity Conversion

SI Units

International System thermal conductivity units.

  • W/(m⋅K) - Base SI unit
  • W/(cm⋅K) - 100 W/(m⋅K)
  • mW/(m⋅K) - 0.001 W/(m⋅K)
  • Heat flux per temperature gradient

Imperial Units

US/UK thermal conductivity units.

  • BTU/(h⋅ft⋅°F) - Common in HVAC
  • BTU-in/(h⋅ft²⋅°F) - Material thickness
  • 1 W/(m⋅K) = 0.578 BTU/(h⋅ft⋅°F)
  • Building materials - R-value related

Material Examples

Typical thermal conductivity values.

  • Copper - 401 W/(m⋅K)
  • Aluminum - 237 W/(m⋅K)
  • Steel - 50 W/(m⋅K)
  • Glass - 1.4 W/(m⋅K)
  • Air - 0.024 W/(m⋅K)

Applications

Common uses of thermal conductivity.

  • Building Design - Insulation selection
  • Electronics - Heat sink design
  • Materials Science - Property characterization
  • Energy Systems - Heat exchanger design
  • HVAC Systems - Equipment sizing

Understanding Thermal Conductivity Units

Thermal conductivity is a fundamental material property that measures how efficiently heat flows through a substance, expressed in watts per meter-kelvin (W/(m⋅K)) as the base SI unit. This property is crucial for engineers designing thermal management systems, building insulation, and electronic components.

In engineering applications, thermal conductivity values vary dramatically across materials. High-conductivity materials like copper and aluminum are used for heat sinks and heat exchangers, while low-conductivity materials serve as thermal insulators in buildings and industrial processes.

The relationship between thermal conductivity and heat transfer is governed by Fourier's law, which states that heat flux is proportional to the temperature gradient and thermal conductivity. Understanding unit conversions is essential for accurate thermal analysis and system design.

Imperial units like BTU/(h⋅ft⋅°F) remain common in the HVAC and construction industries, particularly in the United States. Converting between imperial and metric thermal conductivity units is routine in international engineering projects and building design standards.

Modern thermal analysis relies on computational fluid dynamics and finite element methods that require precise unit conversions. Whether designing electronic cooling systems, optimizing building energy efficiency, or developing new insulation materials, engineers must work fluently between different thermal conductivity measurement systems.