What is a hectopascal (hPa)?

Hectopascal is a metric pressure unit equivalent to 100 pascals. It is used widely in meteorology and atmospheric sciences to express air pressure.

What does centimeter mercury (0°C) represent?

Centimeter mercury (0°C) is a manometric pressure unit that equals the pressure exerted by a 1-centimeter column of mercury at zero degrees Celsius under standard gravity.

Why convert from hectopascal to centimeter mercury (0°C)?

Users convert between these units to translate atmospheric pressure readings into mercury-based units commonly used for instrument calibration and laboratory measurements.

How to Convert from Hectopascal [hPa] to Centimeter mercury (0°C)?

Learn how to convert pressure values from hectopascal [hPa], commonly used in meteorology, to centimeter mercury (0°C), a manometric unit used in laboratory and engineering contexts. Understand the key features, usage, and limitations of this pressure unit converter.

Hectopascal [hPa]

Centimeter mercury (0°C)

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

Hectopascal [hPa] to Centimeter mercury (0°C) Conversion Table

Hectopascal [hPa]	Centimeter mercury (0°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.

Hectopascal [hPa] to Centimeter mercury (0°C) Conversion Table
Hectopascal [hPa]	Centimeter mercury (0°C)

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What Is This Tool?

This tool converts pressure measurements from hectopascal [hPa], a widely used metric unit in meteorology and atmospheric science, into centimeter mercury (0°C), a manometric pressure unit applied in laboratory and engineering settings.

How to Use This Tool?

Enter the pressure value in hectopascal [hPa] into the input field.
Select or confirm the source unit as hectopascal [hPa].
Choose the target unit as centimeter mercury (0°C).
Click the convert button to get the equivalent pressure in centimeter mercury (0°C).

Key Features

Converts pressure values from hectopascal [hPa] to centimeter mercury (0°C) easily.
Uses a precise conversion factor based on standard conditions.
Supports applications in meteorology, aviation, and engineering.
Browser-based and user-friendly interface.

Examples

100 hPa converts to 7.50063755 cmHg (0°C).
1013.25 hPa converts to 75.978 cmHg (0°C).

Common Use Cases

Translating meteorological surface pressure data into manometric units for laboratory use.
Converting altimeter settings for aviation flight planning.
Calibrating pressure sensors and vacuum gauges in engineering experiments.
Reporting small pressure variations in physics and engineering calculations.

Tips & Best Practices

Ensure the input pressure is in hectopascal [hPa] for accurate conversion.
Use the tool under standard temperature (0 °C) and gravity assumptions for correct results.
Cross-check converted results when using mercury-based manometers for calibration.
Prefer pascals in SI-consistent systems but convert to cmHg (0°C) when mercury manometers are involved.

Limitations

Conversion assumes standard gravity and 0 °C temperature conditions for mercury column pressure.
Variations in gravity or temperature can cause differences in calculated pressure values.
Centimeter mercury (0°C) is not commonly used in strictly SI-based measurement systems.

Frequently Asked Questions

What is a hectopascal (hPa)?: Hectopascal is a metric pressure unit equivalent to 100 pascals. It is used widely in meteorology and atmospheric sciences to express air pressure.
What does centimeter mercury (0°C) represent?: Centimeter mercury (0°C) is a manometric pressure unit that equals the pressure exerted by a 1-centimeter column of mercury at zero degrees Celsius under standard gravity.
Why convert from hectopascal to centimeter mercury (0°C)?: Users convert between these units to translate atmospheric pressure readings into mercury-based units commonly used for instrument calibration and laboratory measurements.

Key Terminology

Hectopascal [hPa]: A metric unit of pressure equal to 100 pascals, commonly used in meteorology to measure air pressure.
Centimeter mercury (0°C): A manometric pressure unit corresponding to the pressure exerted by a 1-centimeter mercury column at 0 degrees Celsius under standard gravity.
Conversion Rate: The numerical factor used to convert from hectopascal to centimeter mercury (0°C) is 0.0750063755.

Quick Knowledge Check

What is the base unit from which the hectopascal (hPa) is defined?

100 pascals

1 pascal

1000 pascals

Centimeter mercury (0°C) pressure is based on which physical property?

Hydrostatic pressure by mercury column

Pressure of water column

Atmospheric pressure

What conditions are assumed for converting hPa to cmHg (0°C)?

Standard gravity and 0 °C temperature

Variable gravity and room temperature

Only atmospheric pressure conditions

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