What Is This Tool?
This tool enables easy conversion of thermal conductivity values between calorie (IT)/second/cm/°C and Btu (th) inch/hour/sq. foot/°F, which are units commonly used in legacy literature and U.S. customary engineering contexts respectively.
How to Use This Tool?
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Enter the thermal conductivity value in calorie (IT)/second/cm/°C
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Select the input unit as calorie (IT)/second/cm/°C and the output as Btu (th) inch/hour/sq. foot/°F
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Click the convert button to see the equivalent value in Btu (th) inch/hour/sq. foot/°F
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Use the displayed formula and conversion factor for manual calculations if needed
Key Features
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Quick conversion between calorie (IT)/second/cm/°C and Btu (th) inch/hour/sq. foot/°F units
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Supports thermal conductivity measurements for building materials and metals
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Ideal for translating historical and international thermal data into U.S. customary units
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Browser-based tool requiring no installation
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Clear formula display for accurate calculation reference
Examples
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2 calorie (IT)/second/cm/°C converts to 5809.697287817 Btu (th) inch/hour/sq. foot/°F
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0.5 calorie (IT)/second/cm/°C converts to 1452.42432195415 Btu (th) inch/hour/sq. foot/°F
Common Use Cases
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Reporting or comparing thermal conductivity of metals and alloys found in legacy research
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Characterizing insulation materials and building components using non-SI thermal data
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Converting thermal conductivity for use in building energy modeling and HVAC sizing
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Calculating heat loss or gain through walls and roofs for construction projects
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Translating material conductivity into R-value for insulation resistance calculations
Tips & Best Practices
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Always verify unit selection matches source data to avoid conversion errors
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Maintain numerical precision due to the large conversion factor involved
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Use the steady-state assumption carefully when interpreting results
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Confirm material properties are uniform to ensure meaningful thermal conductivity comparisons
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Cross-check converted values against known standards or specifications
Limitations
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Differences in unit standards and temperature scales require careful attention during conversion
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Assumes steady-state heat transfer and uniform material properties which might not hold in real applications
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Large conversion factors can lead to numerical rounding errors if precision is not maintained
Frequently Asked Questions
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Why convert thermal conductivity from calorie (IT)/second/cm/°C to Btu (th) inch/hour/sq. foot/°F?
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To translate thermal conductivity data from legacy or international sources into units compatible with U.S. construction, HVAC engineering, and building codes.
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What does 1 calorie (IT)/second/cm/°C represent?
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It represents the heat energy transferred per second through a material 1 cm thick and unit area when a temperature gradient of 1 °C is maintained.
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Where is Btu (th) inch/hour/sq. foot/°F commonly used?
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It is commonly used in U.S. engineering contexts to quantify heat flow through building materials and solids for energy modeling and insulation specifications.
Key Terminology
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calorie (IT)/second/cm/°C
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A thermal conductivity unit representing heat transfer per second through a 1 cm thick material with a 1 °C temperature difference.
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Btu (th) inch/hour/sq. foot/°F
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A thermal conductivity unit indicating heat flow per hour through 1 inch thick material and 1 square foot area under a 1 °F temperature difference.
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Thermal Conductivity
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A material property measuring the ability to conduct heat through its structure.