What does inch mercury (32°F) measure?

Inch mercury (32°F) measures pressure as the force exerted by a one-inch column of mercury at 32°F under standard gravity.

Where is psi commonly used?

Psi is commonly used to express pressure in automotive tire ratings, hydraulic systems, compressed gas cylinders, and household water pressures.

Can temperature changes affect this conversion?

Yes, variations from the standard temperature of 32°F can affect the pressure exerted by the mercury column and thus the conversion accuracy.

How to Convert from Inch mercury (32°F) [inHg] to Psi [psi]

Learn how to convert pressure values from inch mercury (32°F) to psi with this easy-to-use unit converter. Understand the applications and limitations of these pressure units.

Inch mercury (32°F) [inHg]

Psi [psi]

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

Inch mercury (32°F) [inHg] to Psi [psi] Conversion Table

Inch mercury (32°F) [inHg]	Psi [psi]

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.

Inch mercury (32°F) [inHg] to Psi [psi] Conversion Table
Inch mercury (32°F) [inHg]	Psi [psi]

Explore More Pressure Units Converter

What Is This Tool?

This tool converts pressure measurements from inch mercury (32°F), a manometric unit used in meteorology and HVAC, to psi, a force per unit area unit commonly applied in automotive and industrial fields.

How to Use This Tool?

Enter the pressure value in inch mercury (32°F) [inHg]
Select psi [psi] as the target unit
Click convert to see the equivalent pressure in psi
Use the result for applications in automotive, hydraulic, or industrial systems

Key Features

Converts inch mercury (32°F) [inHg] to psi [psi] pressure units
Browser-based and simple to use without installation
Facilitates cross-industry pressure unit translations
Includes commonly used conversion factor with examples

Examples

10 inHg equals approximately 4.91 psi
5 inHg equals approximately 2.46 psi

Common Use Cases

Translating atmospheric pressure readings used in weather and aviation to psi
Converting vacuum levels from HVAC and laboratory systems into psi for equipment calibration
Expressing automotive intake-manifold vacuum readings in psi for diagnostics

Tips & Best Practices

Ensure pressure inputs are based on standard temperature (32°F) and gravity conditions
Verify instrument calibration when converting units in specialized environments
Use the conversion for general communication and equipment setup rather than precise scientific measurements

Limitations

Conversion assumes standard temperature and gravity; deviations affect accuracy
Manometric and force-area based unit conventions differ, requiring caution in non-standard setups
Instrument-specific calibrations may produce variations not accounted for by this conversion

Frequently Asked Questions

What does inch mercury (32°F) measure?: Inch mercury (32°F) measures pressure as the force exerted by a one-inch column of mercury at 32°F under standard gravity.
Where is psi commonly used?: Psi is commonly used to express pressure in automotive tire ratings, hydraulic systems, compressed gas cylinders, and household water pressures.
Can temperature changes affect this conversion?: Yes, variations from the standard temperature of 32°F can affect the pressure exerted by the mercury column and thus the conversion accuracy.

Key Terminology

Inch mercury (32°F) [inHg]: A manometric pressure unit defined by the pressure of a one-inch mercury column at 32°F under standard gravity.
Psi [psi]: A pressure unit representing one pound-force applied to an area of one square inch, used widely in Imperial and US customary systems.

Quick Knowledge Check

What is inch mercury (32°F) primarily used to measure?

Voltage levels in electronics

Pressure exerted by mercury column at 32°F

Distance in meteorology

What does psi represent?

Force per unit area in pounds per square inch

Volume of gas at standard temperature

Height of mercury column in a manometer

Why should you be cautious about using this conversion?

Because it assumes standard temperature and gravity conditions

Because it is only valid underwater

Because it converts length units instead of pressure

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