What does a pound-foot/second measure?

It measures mechanical power as the rate of work done, representing one pound-force foot of work performed per second.

How is water horsepower used in engineering?

It is used to estimate hydraulic power for pump sizing, irrigation systems, and evaluating water resource projects.

Is water horsepower equal to shaft horsepower?

No, water horsepower is theoretical hydraulic power and may differ from shaft or brake horsepower due to system efficiency factors.

How to Convert from Pound-foot/second to Horsepower (water)?

Convert power units efficiently from pound-foot/second to horsepower (water) using this practical online tool. Ideal for engineers working in water resource and mechanical power fields.

Pound-foot/second

Horsepower (water)

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

Pound-foot/second to Horsepower (water) Conversion Table

Pound-foot/second	Horsepower (water)

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.

Pound-foot/second to Horsepower (water) Conversion Table
Pound-foot/second	Horsepower (water)

Explore More Power Units Converter

What Is This Tool?

This unit converter transforms power measurements from pound-foot per second, an Imperial unit representing mechanical work rate, into water horsepower, a measure of hydraulic power useful in fluid flow and pump system calculations.

How to Use This Tool?

Enter the power value in pound-foot/second.
Select pound-foot/second as the input unit and horsepower (water) as the output unit.
Execute the conversion to see the equivalent hydraulic power in horsepower (water).

Key Features

Simple conversion between pound-foot/second and horsepower (water).
Supports power unit calculations relevant to mechanical and hydraulic systems.
Based on an accurate conversion rate linking Imperial and hydraulic power measures.
Useful for pump design, water system engineering, and mechanical power estimations.

Examples

100 pound-foot/second equals 0.18173456 horsepower (water).
500 pound-foot/second equals 0.9086728 horsepower (water).

Common Use Cases

Converting mechanical power in Imperial units for engineering analysis.
Determining pump motor power requirements based on flow and head.
Estimating hydraulic power output for low-head water sources and micro-hydropower systems.

Tips & Best Practices

Ensure input values are in pound-foot/second to maintain accuracy.
Verify that flow and head parameters are consistent when interpreting water horsepower.
Recognize that water horsepower calculations assume ideal conditions and may not reflect real-world inefficiencies.

Limitations

Water horsepower values are theoretical and do not account for friction or mechanical losses.
Accurate conversion depends on consistent use of units especially for flow and head measurements.
This tool does not include conversion for units other than pound-foot/second and horsepower (water).

Frequently Asked Questions

What does a pound-foot/second measure?: It measures mechanical power as the rate of work done, representing one pound-force foot of work performed per second.
How is water horsepower used in engineering?: It is used to estimate hydraulic power for pump sizing, irrigation systems, and evaluating water resource projects.
Is water horsepower equal to shaft horsepower?: No, water horsepower is theoretical hydraulic power and may differ from shaft or brake horsepower due to system efficiency factors.

Key Terminology

Pound-foot/second: Imperial unit of power representing the rate of mechanical work equal to one pound-force foot per second.
Horsepower (water): Theoretical hydraulic power to move water against a head, calculated based on flow rate, head height, and fluid properties.
Water horsepower formula: Calculated in U.S. customary units as (Q in gpm × H in feet × specific gravity) divided by 3960 to estimate hydraulic power.

Quick Knowledge Check

What unit does pound-foot/second primarily measure?

Hydraulic power

Mechanical power

Pressure

What is water horsepower commonly used for?

Electrical power analysis

Sizing pumps and estimating hydraulic power

Measuring temperature

Which factor is NOT accounted for by water horsepower calculations?

Friction losses

Volume flow

Head height

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