What does foot water (4°C) represent?

It is a pressure unit based on the pressure from a 1-foot column of pure water at 4°C, commonly used to express low hydraulic pressures.

Where is hectopascal commonly used?

Hectopascal is widely used in meteorology and atmospheric sciences for expressing air pressure, including weather maps and flight planning.

Why is the temperature 4°C important in this conversion?

The pressure value for foot water depends on water density at 4°C, which is a standard reference temperature for water properties.

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

Learn how to convert pressure measurements from foot water (4°C) to hectopascal (hPa) using this simple online unit converter. Understand the significance and applications of both units in hydraulics and meteorology.

Foot water (4°C) [ftAq]

Hectopascal [hPa]

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

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

Foot water (4°C) [ftAq]	Hectopascal [hPa]

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

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Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

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

Explore More Pressure Units Converter

What Is This Tool?

This converter facilitates transforming pressure values measured in foot water (4°C), a unit based on the pressure exerted by a water column at this specific temperature, into hectopascal (hPa), a metric pressure unit widely used in meteorology and atmospheric sciences.

How to Use This Tool?

Enter the pressure value in foot water (4°C) unit.
Select the desired output unit as hectopascal (hPa).
Click convert to obtain the corresponding pressure in hPa.
Use the results for analyzing hydraulic heads or atmospheric pressure readings.

Key Features

Quickly convert between foot water (4°C) and hectopascal units.
Based on the standardized conversion factor of 1 ftAq = 29.8898 hPa.
Supports applications in hydraulics, groundwater, meteorology, and HVAC diagnostics.
Browser-based and easy to use without specialized knowledge.

Examples

2 foot water (4°C) converts to approximately 59.7796 hectopascal.
0.5 foot water (4°C) equals around 14.9449 hectopascal.

Common Use Cases

Determining low-pressure hydraulic heads in pumps and water systems.
Converting manometer readings into metric pressure units for instrumentation.
Expressing pressure-depth relationships in groundwater and well measurements.
Analyzing atmospheric surface pressure data in meteorology.
Flight planning using altimeter settings based on hectopascal values.

Tips & Best Practices

Ensure input pressure values correspond to water at 4°C for accuracy.
Use the converter for low-pressure or hydraulic head measurements involving water.
Cross-check conversions when dealing with fluids other than pure water.
Apply results in meteorological and atmospheric contexts only with appropriate calibration.

Limitations

The foot water (4°C) unit relies on water density at 4°C; temperature changes affect pressure accuracy.
Hectopascal readings may not correctly represent pressures in fluids other than atmosphere or pure water without adjustments.

Frequently Asked Questions

What does foot water (4°C) represent?: It is a pressure unit based on the pressure from a 1-foot column of pure water at 4°C, commonly used to express low hydraulic pressures.
Where is hectopascal commonly used?: Hectopascal is widely used in meteorology and atmospheric sciences for expressing air pressure, including weather maps and flight planning.
Why is the temperature 4°C important in this conversion?: The pressure value for foot water depends on water density at 4°C, which is a standard reference temperature for water properties.

Key Terminology

Foot water (4°C) [ftAq]: A pressure unit equal to the hydrostatic pressure from a 1-foot column of pure water at 4°C, used for expressing low pressures and hydraulic head.
Hectopascal [hPa]: A metric pressure unit equal to 100 pascals, widely applied in meteorology for atmospheric pressure measurement.
Hydraulic Head: The height of a water column that represents pressure in fluid systems, often measured in foot water units.

Quick Knowledge Check

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

Approximately 14.9 hPa

Approximately 29.8898 hPa

Approximately 100 hPa

Which field commonly uses hectopascal for pressure measurement?

Hydraulic pump specifications

Meteorology and atmospheric science

Electrical engineering

What affects the accuracy of foot water (4°C) pressure unit?

Variations in water temperature from 4°C

Changes in atmospheric pressure

Differences in altitude

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