What is a poundal foot (pdl*ft)?

It is a unit of energy in the foot–pound–second (FPS) system, representing work done by a force of one poundal acting through one foot.

How is a watt-second (W*s) related to joules?

One watt-second is dimensionally the same as one joule, representing energy transferred by one watt of power over one second.

Why convert from poundal foot to watt-second?

Converting enables expressing legacy mechanical energy data in modern metric units, allowing comparison and integration with electrical energy measurements.

How to Convert from Poundal Foot [pdlft] to Watt-second [Ws]

Learn how to convert energy values from poundal foot (pdl*ft), a legacy FPS unit, to watt-second (W*s), a metric energy unit equivalent to joules, with practical examples and key information.

Poundal foot [pdl*ft]

Watt-second [W*s]

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

Poundal foot [pdlft] to Watt-second [Ws] Conversion Table

Poundal foot [pdl*ft]	Watt-second [W*s]

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.

Poundal foot [pdl*ft] to Watt-second [W*s] Conversion Table
Poundal foot [pdl*ft]	Watt-second [W*s]

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What Is This Tool?

This converter helps transform energy measurements from poundal foot (pdl*ft), a unit from the foot–pound–second system, into watt-seconds (W·s), which are equivalent to joules. It is useful for expressing classical mechanics or historical energy values in modern SI units.

How to Use This Tool?

Enter the energy value in poundal foot (pdl*ft) you want to convert.
Select watt-second (W*s) as the target unit.
Apply the conversion formula or use the tool’s conversion function.
Review the output value expressed in watt-seconds for your needs.

Key Features

Converts energy from poundal foot to watt-second based on exact conversion rates.
Supports legacy FPS system units for compatibility with classical mechanics data.
Provides clear formulas and example conversions for easy understanding.
Browser-based and straightforward to use without special software.
Facilitates comparison between mechanical and electrical energy units.

Examples

10 pdl*ft equals 0.4214011 W·s by multiplying 10 × 0.04214011.
5 pdl*ft converts to 0.21070055 W·s using the conversion factor 0.04214011.

Common Use Cases

Solving homework problems and examples in classical mechanics using FPS units.
Translating small work or energy values from older engineering documents to SI units.
Converting legacy data in poundal foot for modern engineering simulations or analysis.
Standardizing energy units for comparing mechanical and electrical system measurements.

Tips & Best Practices

Always confirm the unit definitions before converting to avoid errors.
Use this tool when integrating legacy FPS energy data with SI unit systems.
Consider the potential precision loss when converting from non-SI units.
Cross-check results with examples to ensure accurate conversions.

Limitations

The poundal foot is a legacy unit and not widely used in current practice.
Conversion may involve some precision loss due to non-SI origin.
Limited software support and general familiarity outside classical mechanics contexts.

Frequently Asked Questions

What is a poundal foot (pdl*ft)?: It is a unit of energy in the foot–pound–second (FPS) system, representing work done by a force of one poundal acting through one foot.
How is a watt-second (W*s) related to joules?: One watt-second is dimensionally the same as one joule, representing energy transferred by one watt of power over one second.
Why convert from poundal foot to watt-second?: Converting enables expressing legacy mechanical energy data in modern metric units, allowing comparison and integration with electrical energy measurements.

Key Terminology

Poundal foot [pdl*ft]: A unit of mechanical energy in the FPS system equal to work done by a force of one poundal acting through a one-foot displacement.
Watt-second [W*s]: A metric unit of energy equal to the energy transferred by one watt of power sustained for one second, dimensionally identical to a joule.
Foot–pound–second (FPS) system: A system of units used primarily in classical mechanics, where force is often measured in poundals.

Quick Knowledge Check

Which unit represents energy in the FPS system?

Joule

Poundal foot

Watt-second

What is the equivalent of 1 watt-second?

One joule

One calorie

One poundal foot

Why is converting poundal foot to watt-second useful?

To convert electrical units only

To express legacy energy data in SI units

To measure power consumption

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How to Convert from Poundal Foot [pdl*ft] to Watt-second [W*s]

Poundal foot [pdl*ft] to Watt-second [W*s] Conversion Table