Online Thermal Conductivity Units Converter
How to Convert from Btu (IT) inch/hour/sq. foot/°F to Btu (th) foot/hour/sq. foot/°F?

How to Convert from Btu (IT) inch/hour/sq. foot/°F to Btu (th) foot/hour/sq. foot/°F?

Learn how to convert thermal conductivity values from Btu (IT) inch/hour/sq. foot/°F to Btu (th) foot/hour/sq. foot/°F with this practical unit converter designed for building and HVAC professionals.

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Btu (IT) inch/hour/sq. foot/°F to Btu (th) foot/hour/sq. foot/°F Conversion Table

Btu (IT) inch/hour/sq. foot/°F Btu (th) foot/hour/sq. foot/°F

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.
Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.
Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.
Btu (IT) inch/hour/sq. foot/°F to Btu (th) foot/hour/sq. foot/°F Conversion Table
Btu (IT) inch/hour/sq. foot/°F Btu (th) foot/hour/sq. foot/°F

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What Is This Tool?

This converter helps you switch thermal conductivity measurements from Btu (IT) inch/hour/sq. foot/°F—a unit used for heat transfer through materials measured in inches thickness—to Btu (th) foot/hour/sq. foot/°F, which uses a foot thickness basis. It supports accurate and consistent thermal performance evaluations in building and HVAC engineering.

How to Use This Tool?

  • Enter the thermal conductivity value in Btu (IT) inch/hour/sq. foot/°F unit
  • Select the conversion to Btu (th) foot/hour/sq. foot/°F unit
  • Click convert to obtain the equivalent value in the desired unit
  • Use the converted result for insulation specifications or heat transfer calculations

Key Features

  • Converts thermal conductivity between Btu (IT) inch/hour/sq. foot/°F and Btu (th) foot/hour/sq. foot/°F units
  • Supports calculations aligned with building product datasheets and energy modeling
  • Browser-based and easy to use for quick unit conversions
  • Helps compare insulation material properties using common imperial units
  • Useful for HVAC load calculations and thermal resistance estimations

Examples

  • 10 Btu (IT) inch/hour/sq. foot/°F converts to 0.8339 Btu (th) foot/hour/sq. foot/°F
  • 5 Btu (IT) inch/hour/sq. foot/°F converts to 0.4169 Btu (th) foot/hour/sq. foot/°F

Common Use Cases

  • Specifying thermal conductivity of insulation materials like fiberglass or rigid foam in building datasheets
  • Performing heat transfer analysis through walls, roofs, or glazing for HVAC energy modeling
  • Converting between inch-based and foot-based thermal conductivity units in engineering calculations
  • Comparing thermal properties of building materials according to North American standards
  • Estimating heat loss and calculating thermal resistance following Imperial unit conventions

Tips & Best Practices

  • Ensure steady-state conduction assumptions apply when using converted values
  • Use the tool for uniform, one-dimensional heat transfer scenarios
  • Maintain consistent unit usage across project documentation to avoid calculation errors
  • Understand that small variations may occur due to Btu definition differences
  • Always double-check conversions for critical engineering design steps

Limitations

  • Does not account for complex multidimensional heat flow or transient thermal effects
  • Minor discrepancies may arise from differences between International Table and Thermochemical Btu definitions
  • Designed for steady-state conduction through uniform thickness materials only

Frequently Asked Questions

Why convert from Btu (IT) inch/hour/sq. foot/°F to Btu (th) foot/hour/sq. foot/°F?
Converting between these units helps align measurements with different thickness conventions in thermal conductivity assessments, ensuring consistent use in building and HVAC engineering applications.

Key Terminology

Btu (IT) inch/hour/sq. foot/°F
A unit of thermal conductivity measuring heat transfer per hour through a 1 inch thick material with 1 square foot area for a 1°F temperature difference, based on the International Table Btu definition.
Btu (th) foot/hour/sq. foot/°F
A unit of thermal conductivity describing heat transfer per hour through a 1 foot thick material with 1 square foot cross-section for a 1°F difference, using Thermochemical Btu value.

Quick Knowledge Check

What does 1 Btu (IT) inch/hour/sq. foot/°F represent?
What is the main difference between Btu (IT) inch/hour/sq. foot/°F and Btu (th) foot/hour/sq. foot/°F?
Which of the following is a limitation of this unit conversion?