What does Btu (IT)/hour/square foot measure?

It measures heat flux density by specifying the rate of heat transfer per unit area expressed as one British thermal unit transferred per hour across a square foot of surface.

Why convert heat flux density to kilowatt per square meter?

Converting to kilowatt per square meter allows for standardization and easier comparison, especially in scientific, engineering, and international contexts that use SI units.

Can this conversion be used for all heat flux measurements?

The conversion is best suited for steady-state or averaged heat flux densities; highly variable or transient fluxes may require more complex methods.

How to Convert from Btu (IT)/hour/square foot to Kilowatt/square meter?

Learn how to convert heat flux density values from Btu (IT)/hour/square foot to kilowatt/square meter with this easy-to-use online unit converter tool. Understand the definitions, use cases, and conversion formula for accurate energy and thermal calculations.

Btu (IT)/hour/square foot

Kilowatt/square meter

Please check your input. It must be a valid numeric value.

Btu (IT)/hour/square foot to Kilowatt/square meter Conversion Table

Btu (IT)/hour/square foot	Kilowatt/square meter

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 (IT)/hour/square foot to Kilowatt/square meter Conversion Table
Btu (IT)/hour/square foot	Kilowatt/square meter

Explore More Heat Flux Density Units Converter

What Is This Tool?

This converter is designed to translate heat flux density values between Btu (IT)/hour/square foot and kilowatt/square meter. It helps users convert values from an Imperial unit into an SI unit to support engineering, construction, and energy efficiency applications. The tool facilitates standardization and comparison of thermal transmittance measurements.

How to Use This Tool?

Enter the heat flux density value in Btu (IT)/hour/square foot
Select the source unit as Btu (IT)/hour/square foot
Choose the target unit as kilowatt/square meter
Click on convert to obtain the equivalent value
Use the result for energy code compliance, thermal load calculations, or performance analysis

Key Features

Converts heat flux density units: Btu (IT)/hour/square foot to kilowatt/square meter
Supports HVAC, building energy codes, solar irradiance, and fire safety applications
Uses precise, predefined conversion rate for accurate value transformations
Provides clear definitions to understand each unit's role in heat transfer
Browser-based and user-friendly interface for quick conversions

Examples

Convert 10 Btu (IT)/hour/square foot: 10 × 0.0031545907 = 0.031545907 kilowatt/square meter
Convert 50 Btu (IT)/hour/square foot: 50 × 0.0031545907 = 0.157729535 kilowatt/square meter

Common Use Cases

Expressing thermal transmittance (U‑values) for walls, roofs, and windows in building energy standards
Sizing heating and cooling loads by calculating heat loss or gain through building envelopes
Comparing insulation materials and assemblies through relationships with R-values
Specifying solar irradiance levels on rooftop or photovoltaic panel surfaces
Reporting heat flux exposure during fire safety testing on materials and structures
Supporting HVAC and thermal engineering calculations for building envelope heat transfer

Tips & Best Practices

Verify that the Btu (IT) and surface area units follow consistent definitions to maintain accuracy
Use the tool primarily for steady-state or averaged heat flux conditions
Consider measurement methods when comparing radiative versus conductive/convective heat flux data
Apply the converted values in compliance with relevant building codes and engineering standards

Limitations

Assumes standard definitions of Btu (IT) and precise surface areas; differences may affect results
Intended for steady-state or average conditions; transient or variable fluxes need advanced modeling
Measurement method differences (radiative vs. conductive/convective) may influence direct comparability

Frequently Asked Questions

What does Btu (IT)/hour/square foot measure?: It measures heat flux density by specifying the rate of heat transfer per unit area expressed as one British thermal unit transferred per hour across a square foot of surface.
Why convert heat flux density to kilowatt per square meter?: Converting to kilowatt per square meter allows for standardization and easier comparison, especially in scientific, engineering, and international contexts that use SI units.
Can this conversion be used for all heat flux measurements?: The conversion is best suited for steady-state or averaged heat flux densities; highly variable or transient fluxes may require more complex methods.

Key Terminology

Btu (IT)/hour/square foot: A unit measuring heat flux density representing one International Table British thermal unit transferred per hour across one square foot of surface area.
Kilowatt/square meter: An SI unit of heat flux density that quantifies heat energy transfer per unit area as kilowatts per square meter.
Heat flux density: The rate at which heat energy transfers through a surface per unit area.
Thermal transmittance (U-value): A measure of how well a building component conducts heat, defined as heat transfer per unit area per unit temperature difference.

Quick Knowledge Check

What unit does Btu (IT)/hour/square foot measure?

Power per volume

Heat flux density

Temperature

Which unit is the SI equivalent in this converter?

Watt per square inch

Kilowatt per square meter

Calorie per hour

For which applications is this conversion especially useful?

Building energy code compliance and thermal load calculation

Cooking time estimation

Sound level measurement

Share Us

Similar Calculators

Online Temperature Units Converter Online Data Storage Units Converter Online Charge Units Converter Online Permeability Units Converter Online Linear Current Density Units Converter