What is water horsepower?

Water horsepower, also known as hydraulic horsepower, is the mechanical power needed to move water against a specific head, calculated based on flow, head, and water properties.

Why convert water horsepower to pound-foot per hour?

Converting to pound-foot per hour allows expressing hydraulic power in traditional imperial units often used in historic equipment and mechanical work rate assessments.

Is pound-foot per hour commonly used today?

Pound-foot per hour is mainly used for very low power outputs or legacy systems and is uncommon in contemporary engineering applications.

How to Convert from Horsepower (water) to Pound-foot/hour [lbf*ft/h]

Learn how to convert water horsepower, a measure of hydraulic power, into pound-foot per hour, an imperial unit of mechanical work rate, using this straightforward unit converter tool.

Horsepower (water)

Pound-foot/hour [lbf*ft/h]

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

Horsepower (water) to Pound-foot/hour [lbf*ft/h] Conversion Table

Horsepower (water)	Pound-foot/hour [lbf*ft/h]

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.

Horsepower (water) to Pound-foot/hour [lbf*ft/h] Conversion Table
Horsepower (water)	Pound-foot/hour [lbf*ft/h]

Explore More Power Units Converter

What Is This Tool?

This converter transforms values from horsepower (water), a unit describing hydraulic power in fluid systems, into pound-foot per hour, an imperial unit used to measure mechanical power output over time.

How to Use This Tool?

Enter the value of water horsepower you want to convert.
Select 'horsepower (water)' as the input unit and 'pound-foot/hour [lbf*ft/h]' as the output unit.
Click on the convert button to see the equivalent power in pound-foot per hour.
Use the results for interpreting mechanical work rates or documenting legacy equipment specifications.

Key Features

Converts water horsepower to pound-foot per hour accurately using established conversion rates.
Supports applications in fluid mechanics, pump sizing, and legacy equipment documentation.
Browser-based and easy to use for quick converting of hydraulic power values.
Provides clear results suitable for comparing historic imperial units with modern measurements.

Examples

2 horsepower (water) equals 3,961,822.17 pound-foot per hour.
0.5 horsepower (water) equals 990,455.54 pound-foot per hour.

Common Use Cases

Sizing and selecting pumps for irrigation, municipal water supply, and HVAC systems by comparing water horsepower to other power units.
Estimating hydraulic power available in low-head water sources for micro-hydropower turbines.
Documenting mechanical power for historical or vintage equipment that uses foot-pound units.
Converting older imperial power ratings to SI units for slow mechanical work like hand-cranks or winches.

Tips & Best Practices

Ensure accurate flow and head values when calculating water horsepower before conversion.
Interpret large conversion results carefully, as pound-foot/hour is a much smaller power unit.
Use this converter mainly for legacy or low-power contexts where imperial units are preferred.
Check equipment documentation to confirm unit compatibility when comparing power values.

Limitations

Pound-foot per hour represents a very small power quantity, leading to large numeric conversions.
Conversion accuracy depends on precise definitions of flow and head used for water horsepower.
Primarily relevant for low power or legacy measurements; may not suit modern high-power systems.

Frequently Asked Questions

What is water horsepower?: Water horsepower, also known as hydraulic horsepower, is the mechanical power needed to move water against a specific head, calculated based on flow, head, and water properties.
Why convert water horsepower to pound-foot per hour?: Converting to pound-foot per hour allows expressing hydraulic power in traditional imperial units often used in historic equipment and mechanical work rate assessments.
Is pound-foot per hour commonly used today?: Pound-foot per hour is mainly used for very low power outputs or legacy systems and is uncommon in contemporary engineering applications.

Key Terminology

Horsepower (water): A measure of hydraulic power indicating the mechanical power required to move water against a specified head.
Pound-foot per hour: An imperial unit of power representing the rate of mechanical work equal to one foot-pound force done per hour.
Hydraulic power: The theoretical mechanical power associated with moving fluid against pressure or height, often used in pumps and turbines.

Quick Knowledge Check

What does one pound-foot per hour represent?

The rate of mechanical work equal to one foot-pound force per hour.

The flow rate of water in gallons per minute.

The power needed to pump water over a specific height.

What is a typical use of water horsepower?

Measuring electrical power generation in watts.

Sizing pumps and estimating hydraulic power in fluid systems.

Recording temperature changes in water systems.

Why might conversions to pound-foot per hour produce large numbers?

Because pound-foot per hour is a large power unit.

Because pound-foot per hour is a very small power unit.

Because horsepower (water) is measured in joules.

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