What does one foot water (4°C) represent?

It represents the hydrostatic pressure exerted by a 1-foot column of pure water at 4°C, used to express low pressures or hydraulic heads.

Why is bar commonly used for pressure measurements?

Bar is widely accepted in meteorology, engineering, and industry to measure pressure and is close to atmospheric pressure, making it practical for many applications.

Can this conversion be used for high-pressure measurements?

No, foot water is mainly used for low pressures and hydraulic head, so it is not suitable for high-pressure applications.

How to Convert from Foot water (4°C) [ftAq] to Bar

Learn the process to convert pressure values from foot water (4°C) to bar, a widely used pressure unit in various engineering and industrial applications.

Foot water (4°C) [ftAq]

Bar

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

Foot water (4°C) [ftAq] to Bar Conversion Table

Foot water (4°C) [ftAq]	Bar

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.

Foot water (4°C) [ftAq] to Bar Conversion Table
Foot water (4°C) [ftAq]	Bar

Explore More Pressure Units Converter

What Is This Tool?

This converter transforms pressure measurements given in foot water (4°C), a unit based on the hydrostatic pressure of a water column at 4°C, into bar, a common pressure unit used in meteorology and industry.

How to Use This Tool?

Enter the pressure value expressed in foot water (4°C)
Select foot water (4°C) as the input unit and bar as the output unit
Execute the conversion to obtain the value in bar
Use the converted result for engineering, HVAC, or fluid measurement purposes

Key Features

Converts foot water (4°C) to bar pressure values quickly and accurately
Browser-based and user-friendly interface
Supports pressure conversions based on water density at 4°C
Ideal for translating hydraulic head into standard pressure units

Examples

5 foot water (4°C) converts to 0.149449 bar
10 foot water (4°C) converts to 0.298898 bar
Conversion formula: 1 foot water (4°C) [ftAq] = 0.0298898 bar

Common Use Cases

Specifying pump head and low pressures in water-distribution systems
Interpreting gauge or manometer pressure readings in laboratories and HVAC
Expressing groundwater static head and depth–pressure relationships
Converting fluid measurement data into standard pressure units for industry

Tips & Best Practices

Ensure input values reflect water density at 4°C for accuracy
Use bar values to compare pressure data across different systems easily
Apply conversions when translating hydraulic head into engineering parameters
Verify unit suitability especially for low-pressure applications

Limitations

Foot water unit depends on water density at 4°C and may vary with temperature or composition changes
Bar is not an official SI base unit; pascal conversion might be needed for strict SI compliance
Foot water is appropriate mainly for low-pressure or hydraulic head contexts and not for high-pressure measurements

Frequently Asked Questions

What does one foot water (4°C) represent?: It represents the hydrostatic pressure exerted by a 1-foot column of pure water at 4°C, used to express low pressures or hydraulic heads.
Why is bar commonly used for pressure measurements?: Bar is widely accepted in meteorology, engineering, and industry to measure pressure and is close to atmospheric pressure, making it practical for many applications.
Can this conversion be used for high-pressure measurements?: No, foot water is mainly used for low pressures and hydraulic head, so it is not suitable for high-pressure applications.

Key Terminology

Foot water (4°C): A unit of pressure based on the hydrostatic pressure from a one-foot column of pure water at 4°C, used mainly for low pressures and hydraulic heads.
Bar: A pressure unit equal to 100,000 pascals, commonly used in meteorology, engineering, and industry, slightly less than atmospheric pressure.

Quick Knowledge Check

What does foot water (4°C) measure?

Temperature of water at 4°C

Hydrostatic pressure of a one-foot column of water at 4°C

Volume of water displaced by one foot

Which unit is used to express pressure equal to 100,000 pascals?

Pascal

Bar

Foot water (4°C)

What is a common use for converting foot water to bar?

Converting temperature data

Translating hydraulic head values into standard pressure units

Measuring electrical resistance

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