What is the atmosphere technical (at) unit?

Atmosphere technical (at) is a non-SI pressure unit defined as one kilogram-force per square centimetre, approximately equal to 98,066.5 pascals.

When should I use foot water (4°C) as a pressure unit?

Foot water (4°C) is used to express low pressures or hydraulic heads based on the pressure exerted by a 1-foot water column at 4°C, common in water systems and fluid instrumentation.

Why convert atmosphere technical (at) to foot water (4°C)?

Because it helps translate legacy pressure values into hydraulic head measurements that are easier to interpret for fluid system analyses and pump evaluations.

How to Convert from Atmosphere technical [at] to Foot water (4°C) [ftAq]

Convert pressure values from the technical atmosphere (at) unit to foot water (4°C) [ftAq], commonly used in hydraulic engineering and fluid system analysis.

Atmosphere technical [at]

Foot water (4°C) [ftAq]

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

Atmosphere technical [at] to Foot water (4°C) [ftAq] Conversion Table

Atmosphere technical [at]	Foot water (4°C) [ftAq]

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.

Atmosphere technical [at] to Foot water (4°C) [ftAq] Conversion Table
Atmosphere technical [at]	Foot water (4°C) [ftAq]

Explore More Pressure Units Converter

What Is This Tool?

This converter transforms pressure measurements from atmosphere technical (at), a legacy non-SI unit, into foot water (4°C) [ftAq], a unit representing hydrostatic pressure from a water column at 4°C.

How to Use This Tool?

Enter the pressure value in atmosphere technical units (at)
Select atmosphere technical (at) as the input unit
Choose foot water (4°C) [ftAq] as the output unit
Click the convert button to see the equivalent pressure in foot water
Review and apply the conversion result to your analysis or documentation

Key Features

Converts pressure units from atmosphere technical to foot water (4°C)
Based on a precise conversion factor between at and ftAq
Useful for interpreting legacy pressure values in modern terms
Browser-based tool requiring no installation
Supports engineering and fluid mechanics applications

Examples

2 atmosphere technical (at) converts to approximately 65.62 foot water (4°C) [ftAq]
0.5 atmosphere technical (at) converts to about 16.40 foot water (4°C) [ftAq]

Common Use Cases

Translating historical engineering pressure specifications given in kilogram-force per square centimetre
Evaluating pump head in hydraulic and water distribution systems based on water column height
Converting manometer or gauge readings in HVAC and laboratory fluid instrumentation
Assessing static head or depth–pressure relationships in groundwater monitoring
Interpreting and maintaining older industrial and hydraulic equipment data

Tips & Best Practices

Use the exact conversion factor for accurate legacy pressure translation
Consider temperature or water purity variations that may affect foot water pressure values
Use the tool to compare legacy units to modern SI units in engineering documentation
Verify input values correspond to the technical atmosphere definition for consistency
Apply results in the context of hydraulic engineering or water system analysis

Limitations

Technical atmosphere is a non-SI unit linked to historical measurement systems
Foot water pressure depends on water density at 4°C and may vary with temperature changes
Conversion assumes standard conditions and may require adjustments for fluid property deviations
Precision may be limited when comparing old units with modern SI standards

Frequently Asked Questions

What is the atmosphere technical (at) unit?: Atmosphere technical (at) is a non-SI pressure unit defined as one kilogram-force per square centimetre, approximately equal to 98,066.5 pascals.
When should I use foot water (4°C) as a pressure unit?: Foot water (4°C) is used to express low pressures or hydraulic heads based on the pressure exerted by a 1-foot water column at 4°C, common in water systems and fluid instrumentation.
Why convert atmosphere technical (at) to foot water (4°C)?: Because it helps translate legacy pressure values into hydraulic head measurements that are easier to interpret for fluid system analyses and pump evaluations.

Key Terminology

Atmosphere Technical (at): A non-SI pressure unit equal to one kilogram-force per square centimetre, used in legacy engineering.
Foot water (4°C) [ftAq]: A pressure unit representing the hydrostatic pressure exerted by a 1-foot column of water at 4°C.
Hydraulic Head: The height of a water column representing pressure in fluid systems, often measured in feet of water.

Quick Knowledge Check

What does the atmosphere technical (at) measure?

Hydraulic head in feet

Pressure defined as kilogram-force per square centimetre

Temperature of water at 4°C

Foot water (4°C) pressure is based on which physical property?

Air pressure at sea level

Hydrostatic pressure from a water column at 4°C

Kilogram-force per square centimetre

Why is converting atmosphere technical (at) to foot water useful?

To measure water temperature changes

To interpret legacy pressure units as hydraulic heads

To calculate distances in feet

Share Us

Similar Calculators

Online Thermal Resistance Units Converter Online Surface Current Density Units Converter Online Volume Units Converter Online Volume Dry Units Converter Online Weight and Mass Units Converter