What does 1 torr represent in pascals?

One torr equals exactly 101325 divided by 760 pascals, approximately 133.322368 pascals.

Can I directly compare torr and millimeter water pressures?

Direct comparison depends on context since torr measures vacuum or low gage pressures, while millimeter water is used for very small positive hydrostatic pressures.

How to Convert from Torr [Torr] to Millimeter Water (4°C)

Q: Why is millimeter water measured at 4°C?

Because 4°C is the temperature at which water reaches maximum density, making pressure measurements based on a water column at that temperature standardized.

Learn how to convert pressure values from torr (Torr) to millimeter water (4°C) using this practical unit converter designed for low-pressure measurements in labs, HVAC, and industry.

Torr [Torr]

Millimeter water (4°C)

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

Torr [Torr] to Millimeter water (4°C) Conversion Table

Torr [Torr]	Millimeter water (4°C)

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.

Torr [Torr] to Millimeter water (4°C) Conversion Table
Torr [Torr]	Millimeter water (4°C)

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What Is This Tool?

This converter allows you to transform pressure measurements from torr units, commonly used to quantify low pressures and vacua, into millimeter water (4°C), a unit reflecting hydrostatic pressure from a water column at a specific temperature.

How to Use This Tool?

Enter the pressure value in torr (Torr) that you want to convert
Select torr as the original unit and millimeter water (4°C) as the target unit
Click the convert button to see the equivalent pressure in millimeter water (4°C)
Use the converted values for your specific application such as HVAC or laboratory measurements

Key Features

Accurate conversion between torr and millimeter water (4°C) pressure units
Supports applications in laboratories, HVAC, vacuum technology, and semiconductor fabrication
Browser-based and easy to use without any installation
Provides instant results based on established conversion rate
Useful for low-pressure sensor calibration and small-scale fluid dynamics

Examples

2 Torr is equal to 27.1909447566 millimeter water (4°C)
0.5 Torr converts to 6.79773618915 millimeter water (4°C)

Common Use Cases

Measuring and reporting vacuum levels in industrial and laboratory vacuum systems
Calibrating low-range pressure sensors using hydrostatic units
Specifying pressures in semiconductor processing and thin-film deposition
Monitoring HVAC static pressures and cleanroom differentials
Assessing small pressure drops in plumbing and filtration systems

Tips & Best Practices

Ensure the temperature is around 4°C when interpreting millimeter water pressure units for accuracy
Use the conversion tool under standard gravity conditions for consistent results
Understand that torr measures vacuum or low gage pressure, while millimeter water reflects small hydrostatic pressures
Cross-check units especially when applying conversions to different pressure measurement contexts
Leverage this tool for quick and reliable unit translation during experiments or system monitoring

Limitations

Conversion assumes standard gravity and water temperature at 4°C; deviations may impact accuracy
Torr is primarily a vacuum or low-pressure unit, whereas millimeter water is a hydrostatic pressure unit mainly for small positive pressures
Direct unit interchangeability may be limited depending on the specific application and pressure conditions

Frequently Asked Questions

What does 1 torr represent in pascals?: One torr equals exactly 101325 divided by 760 pascals, approximately 133.322368 pascals.
Why is millimeter water measured at 4°C?: Because 4°C is the temperature at which water reaches maximum density, making pressure measurements based on a water column at that temperature standardized.
Can I directly compare torr and millimeter water pressures?: Direct comparison depends on context since torr measures vacuum or low gage pressures, while millimeter water is used for very small positive hydrostatic pressures.

Key Terminology

Torr [Torr]: A pressure unit equal to 1/760 of a standard atmosphere, commonly used to measure low pressures and vacua.
Millimeter Water (4°C): Hydrostatic pressure exerted by a 1 mm column of pure water at 4°C under standard gravity, representing very small pressures.
Hydrostatic Pressure: Pressure exerted by a fluid at equilibrium due to the force of gravity.

Quick Knowledge Check

What is the main use of the torr unit?

Measuring high atmospheric pressure

Quantifying low pressures and vacua

Measuring temperature variations

Why is millimeter water measured at 4°C?

It's the standard water boiling point

Water has maximum density at this temperature

Water freezes at this temperature

What should you consider when converting torr to millimeter water?

Water purity and container size

Standard gravity and temperature conditions

Air humidity levels

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