What does poundal per square foot measure?

It measures pressure as one poundal of force applied uniformly over one square foot of area, mainly used in the foot–pound–second system.

In what contexts is femtopascal commonly used?

Femtopascal is employed to express ultra-low pressures, such as those in interstellar gas or ultra-high-vacuum research environments.

Why is the conversion factor so large between these units?

Because femtopascal represents extremely small pressures (10⁻¹⁵ pascals), converting from poundal/square foot results in a very large numeric multiplier.

Convert Poundal/square foot to Femtopascal (fPa) Pressure Units

Easily convert pressure values from poundal per square foot to femtopascal (fPa), turning legacy FPS measurements into ultra-low SI-based units for scientific and astrophysical applications.

Poundal/square foot

Femtopascal [fPa]

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Poundal/square foot to Femtopascal [fPa] Conversion Table

Poundal/square foot	Femtopascal [fPa]

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

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Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

Poundal/square foot to Femtopascal [fPa] Conversion Table
Poundal/square foot	Femtopascal [fPa]

Explore More Pressure Units Converter

What Is This Tool?

This converter transforms pressure readings from poundal per square foot, a unit from the foot–pound–second system, into femtopascal (fPa), a unit used for measuring extremely low pressures in scientific research.

How to Use This Tool?

Enter the pressure value in poundal per square foot
Select poundal/square foot as the input unit
Choose femtopascal (fPa) as the output unit
Click convert to get the pressure in femtopascal

Key Features

Converts pressure units from poundal/square foot to femtopascal accurately
Useful for interpreting legacy FPS pressure data in modern scientific contexts
Supports ultra-low pressure measurements applicable in astrophysics and physics labs
Browser-based and easy to use with straightforward input and output

Examples

2 poundal/square foot equals 2 × 1488163943569500 = 2976327887139000 femtopascal
0.5 poundal/square foot converts to 0.5 × 1488163943569500 = 744081971784750 femtopascal

Common Use Cases

Translating old FPS pressure units into extremely small SI units for precise scientific analysis
Comparing low pressure data in research involving interstellar or interplanetary gas environments
Supporting high-precision ultra-high-vacuum experiments in fundamental physics
Converting historical engineering pressure records for modern scientific evaluation

Tips & Best Practices

Double-check entered values due to large conversion factors to prevent numerical errors
Use this tool mainly for educational, historical, or specialized scientific purposes
Understand that poundal/square foot is uncommon in current engineering measurements
Apply femtopascal conversions primarily when dealing with ultra-low pressure environments

Limitations

Requires careful handling of large numerical values due to scale differences
Poundal/square foot is mostly obsolete and rarely used in modern pressure measurement
Femtopascal units are typically restricted to specialized scientific fields
This conversion is not intended for general or everyday pressure measurements

Frequently Asked Questions

What does poundal per square foot measure?: It measures pressure as one poundal of force applied uniformly over one square foot of area, mainly used in the foot–pound–second system.
In what contexts is femtopascal commonly used?: Femtopascal is employed to express ultra-low pressures, such as those in interstellar gas or ultra-high-vacuum research environments.
Why is the conversion factor so large between these units?: Because femtopascal represents extremely small pressures (10⁻¹⁵ pascals), converting from poundal/square foot results in a very large numeric multiplier.

Key Terminology

Poundal per square foot: A pressure unit in the FPS system defined as one poundal of force uniformly applied over one square foot.
Femtopascal (fPa): An SI unit of pressure equal to 10⁻¹⁵ pascals, used for ultra-low pressure measurements.
Pressure: The force applied per unit area, commonly measured in various unit systems.

Quick Knowledge Check

What unit system does poundal per square foot belong to?

Metric system

Foot–pound–second (FPS) system

International System of Units

Femtopascal is best used to measure what type of pressure?

High pressure in engines

Extremely low pressure in scientific research

Atmospheric pressure

Why should you handle conversion carefully with this tool?

Because the conversion formula is unknown

Due to extremely large conversion factor values

Because the units are identical

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