What does pound-force per square inch measure?

Pound-force per square inch (psi) measures pressure as one pound-force applied over an area of one square inch, commonly used in engineering and automotive systems.

What is centimeter water (4°C) used for?

Centimeter water (4°C) expresses low pressures like airway or ventilator pressures in medical contexts and small hydrostatic pressures in laboratories.

How accurate is the conversion from psi to cm H2O?

The conversion uses a specific factor but accuracy depends on conditions like temperature and water purity related to the cm water unit.

How to Convert from Pound-force/square inch to Centimeter water (4°C)?

Convert pressure values from pound-force per square inch (psi) to centimeter water (4°C) using this easy and accurate online unit converter specialized for pressure measurements.

Pound-force/square inch

Centimeter water (4°C)

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

Pound-force/square inch to Centimeter water (4°C) Conversion Table

Pound-force/square inch	Centimeter 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.

Pound-force/square inch to Centimeter water (4°C) Conversion Table
Pound-force/square inch	Centimeter water (4°C)

Explore More Pressure Units Converter

What Is This Tool?

This online converter enables users to change pressure measurements from pound-force per square inch (psi), a common imperial pressure unit, into centimeter water (4°C), a specialized unit used primarily for low-pressure measurements in medical and laboratory settings.

How to Use This Tool?

Enter the pressure value in pound-force per square inch (psi).
Select pound-force/square inch as the input unit and centimeter water (4°C) as the output unit.
Click convert to view the equivalent pressure expressed in centimeter water (4°C).

Key Features

Converts pressure from pound-force per square inch to centimeter water (4°C).
Supports pressure applications across automotive, medical, and laboratory fields.
Browser-based and easy to use for quick and precise unit conversions.
Includes examples for straightforward understanding of conversion results.
Offers clear definitions and practical use cases for each unit.

Examples

Convert 2 pound-force/square inch: 2 × 70.3088937322 = 140.6177874644 cm H2O (4°C).
Convert 0.5 pound-force/square inch: 0.5 × 70.3088937322 = 35.1544468661 cm H2O (4°C).

Common Use Cases

Checking automotive tire pressure readings and system gauges measured in psi.
Specifying and reading pressure settings for medical devices such as ventilators and chest drains.
Measuring small hydrostatic or differential pressures in laboratories using manometers.

Tips & Best Practices

Ensure the temperature context is 4°C when interpreting centimeter water values for accuracy.
Use the tool to translate larger industrial pressure units into smaller, precise medical or lab units carefully.
Double-check conversions when handling sensitive pressure measurements to avoid errors.

Limitations

The centimeter water unit relies on water at exactly 4°C, with purity assumptions that may affect results.
Significant magnitude differences between psi and cm H2O require careful conversion to prevent misinterpretation.
This tool does not account for variations in temperature or water purity that might influence pressure values.

Frequently Asked Questions

What does pound-force per square inch measure?: Pound-force per square inch (psi) measures pressure as one pound-force applied over an area of one square inch, commonly used in engineering and automotive systems.
What is centimeter water (4°C) used for?: Centimeter water (4°C) expresses low pressures like airway or ventilator pressures in medical contexts and small hydrostatic pressures in laboratories.
How accurate is the conversion from psi to cm H2O?: The conversion uses a specific factor but accuracy depends on conditions like temperature and water purity related to the cm water unit.

Key Terminology

Pound-force per square inch (psi): An imperial pressure unit indicating one pound-force applied to one square inch of area.
Centimeter water (4°C): A non-SI pressure unit representing the pressure from a 1 cm column of pure water at 4°C.
Pressure: Force applied perpendicular to the surface of an object per unit area.

Quick Knowledge Check

What does one pound-force/square inch represent?

Pressure from one pound-force over one square foot

Pressure from one pound-force over one square inch

Pressure from one kilogram-force over one square inch

For which temperature is the centimeter water unit standardized?

0°C

4°C

20°C

In which field is centimeter water commonly used?

Automotive engineering

Medical and laboratory pressure measurements

Hydraulic pump testing

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