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

It measures the rate of energy transferred per second across each square foot of surface, representing heat flux density in non-SI units.

Are these units commonly used in modern scientific work?

These units are mostly used in legacy contexts; modern scientific work typically prefers SI units, though conversions remain important for certain applications.

How to Convert from Btu (IT)/second/square foot to Foot pound/minute/square foot?

Q: Why convert from Btu (IT)/second/square foot to foot pound/minute/square foot?

This conversion aligns heat flux density measurements with imperial units used in older U.S. engineering and HVAC documentation, enabling easier comparison and interpretation.

Learn how to convert heat flux density values from Btu (IT)/second/square foot to foot pound/minute/square foot with this easy, browser-based conversion tool designed for engineers and scientists.

Btu (IT)/second/square foot

Foot pound/minute/square foot

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

Btu (IT)/second/square foot to Foot pound/minute/square foot Conversion Table

Btu (IT)/second/square foot	Foot pound/minute/square foot

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)/second/square foot to Foot pound/minute/square foot Conversion Table
Btu (IT)/second/square foot	Foot pound/minute/square foot

Explore More Heat Flux Density Units Converter

What Is This Tool?

This converter assists in converting heat flux density measurements from Btu (IT)/second/square foot—a non-SI unit measuring thermal power per area—to foot pound/minute/square foot, an imperial unit expressing energy transfer rates per unit area.

How to Use This Tool?

Enter the heat flux density value in Btu (IT)/second/square foot
Select the output unit as foot pound/minute/square foot
Click the convert button to obtain the equivalent value
Use the provided examples as a reference for expected results

Key Features

Converts heat flux density values between Btu (IT)/second/square foot and foot pound/minute/square foot
Supports thermal measurements used in fire testing, furnace experiments, and HVAC engineering
Easy-to-use, browser-based interface suitable for legacy U.S. unit systems
Provides clear unit definitions and practical use cases
Includes example conversions to demonstrate the process

Examples

1 Btu (IT)/second/square foot equals 46690.156 foot pound/minute/square foot
0.5 Btu (IT)/second/square foot equals 23345.078 foot pound/minute/square foot

Common Use Cases

Reporting intense radiative heat fluxes in fire resistance evaluations
Specifying localized heat loads in high-temperature furnace and plasma heating tests
Describing heat loss or gain through building envelopes in older U.S. engineering documents
Detailing radiant or convective heat flux in legacy HVAC and technical reports
Facilitating comparisons between imperial and SI unit measurements in laboratories

Tips & Best Practices

Always confirm the unit system required for your application to avoid misinterpretation
Be aware of the large numerical conversion factor due to different time units (seconds vs minutes)
Use example conversions as a guide for validating your inputs and outputs
Consider the context and precision requirements when interpreting non-SI units
Handle unit conversions carefully during documentation and reporting to ensure clarity

Limitations

Significant differences in time and energy units can lead to large numerical factors that require careful handling
Both units are non-SI and may be less familiar or less precise compared to SI counterparts
Conversions should be used with consideration of accuracy and application context to avoid errors

Frequently Asked Questions

What does Btu (IT)/second/square foot measure?: It measures the rate of energy transferred per second across each square foot of surface, representing heat flux density in non-SI units.
Why convert from Btu (IT)/second/square foot to foot pound/minute/square foot?: This conversion aligns heat flux density measurements with imperial units used in older U.S. engineering and HVAC documentation, enabling easier comparison and interpretation.
Are these units commonly used in modern scientific work?: These units are mostly used in legacy contexts; modern scientific work typically prefers SI units, though conversions remain important for certain applications.

Key Terminology

Btu (IT)/second/square foot: A non-SI unit expressing the rate of heat energy transferred per second across one square foot of surface area.
foot pound/minute/square foot: An imperial unit representing energy transfer rate per unit area, with one foot-pound transferred each minute across one square foot.
Heat flux density: The quantity measuring power per unit area, indicating how much energy passes through a surface area over time.

Quick Knowledge Check

What kind of quantity do both Btu (IT)/second/square foot and foot pound/minute/square foot measure?

Length

Heat flux density

Temperature

Why is the conversion factor between these units large?

Because they measure different physical concepts

Due to difference in time units (seconds vs minutes) and energy units

Because one is SI and the other is metric

In which field is converting these units especially useful?

Biology

Fire testing and HVAC engineering

Astronomy

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