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

It represents the hydrostatic pressure of a 1-foot column of pure water at 4°C and is commonly used for low pressure or hydraulic head measurements.

Why use microbar for pressure measurement?

Microbar is used to express extremely small pressures, such as in vacuum systems or sensitive atmospheric measurements.

Can this conversion be used for all water temperatures?

No, the foot water unit is based on water density at 4°C, so variations in temperature will affect the pressure equivalence.

How to Convert from Foot water (4°C) [ftAq] to Microbar [µbar]?

Convert pressure measurements from foot water (4°C) units to microbar (µbar) using our easy-to-use online converter. Understand the use cases, features, and steps to perform the conversion efficiently.

Foot water (4°C) [ftAq]

Microbar [µbar]

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

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

Foot water (4°C) [ftAq]	Microbar [µbar]

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 Microbar [µbar] Conversion Table
Foot water (4°C) [ftAq]	Microbar [µbar]

Explore More Pressure Units Converter

What Is This Tool?

This unit converter allows you to transform pressure values measured in foot water (4°C) into microbar (µbar) units. It is designed for users who need to translate hydraulic head or low pressure readings into very small pressure units commonly used in vacuum and sensitive atmospheric applications.

How to Use This Tool?

Enter the pressure value in foot water (4°C) units
Select microbar [µbar] as the target unit
Click the convert button to see the equivalent value in microbar
Use the converted value for further analysis or reporting

Key Features

Converts pressure values from foot water (4°C) to microbar (µbar)
Browser-based tool with straightforward input and conversion
Supports accurate interpretation for laboratory, HVAC, and geophysical uses
Useful for analyzing low-pressure phenomena and calibrating sensitive instruments

Examples

2 Foot water (4°C) equals 59779.6 µbar
0.5 Foot water (4°C) equals 14944.9 µbar

Common Use Cases

Specifying hydraulic head or low pressures in water-distribution systems and pump specifications
Interpreting manometer or gauge readings in HVAC and laboratory environments
Measuring very low pressures in vacuum systems and thin-film deposition processes
Monitoring weak acoustic or infrasound pressure variations in atmospheric and geophysical fields
Calibrating instruments for space-simulation and spacecraft environmental testing

Tips & Best Practices

Use this conversion primarily when precise low-pressure units are required
Ensure water temperature is close to 4°C for accuracy when using foot water (4°C)
Avoid using microbar units for large-scale hydraulic pressure due to the small scale
Employ precision instruments for measuring or applying pressures in microbar range

Limitations

Foot water (4°C) assumes water density at exactly 4°C; temperature changes affect equivalence
Microbar units are suited for very small pressures and may not be practical for larger pressures
Accurate measurement in microbar requires specialized precision equipment

Frequently Asked Questions

What does one foot water (4°C) represent?: It represents the hydrostatic pressure of a 1-foot column of pure water at 4°C and is commonly used for low pressure or hydraulic head measurements.
Why use microbar for pressure measurement?: Microbar is used to express extremely small pressures, such as in vacuum systems or sensitive atmospheric measurements.
Can this conversion be used for all water temperatures?: No, the foot water unit is based on water density at 4°C, so variations in temperature will affect the pressure equivalence.

Key Terminology

Foot water (4°C) [ftAq]: A pressure unit representing the hydrostatic pressure of a 1-foot column of pure water at 4°C, used for low pressures and hydraulic head.
Microbar [µbar]: A unit of pressure equal to one millionth of a bar (10⁻⁶ bar), commonly used to measure very small pressures in vacuum and atmospheric contexts.
Hydrostatic Pressure: Pressure exerted by a fluid due to the force of gravity at a specific depth.

Quick Knowledge Check

What pressure does one foot water (4°C) correspond to?

Pressure from a 1-foot column of mercury

Hydrostatic pressure of a 1-foot water column at 4°C

Pressure exerted by 1 foot of air

For what kind of pressures is microbar typically used?

Large hydraulic system pressures

Very small absolute or differential pressures

Standard atmospheric pressure measurements

Which factor affects the accuracy of converting from foot water (4°C)?

Variations in water density due to temperature

Altitude of measurement location

Color of the water

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