What is an attopascal?

An attopascal is an SI derived unit of pressure equal to 10^-18 pascal, used to measure extremely small pressure levels.

Why use gram-force per square centimeter if it is not an SI unit?

Gram-force per square centimeter is used in legacy and industry-specific situations for instrument calibration, testing, and references that rely on gravitational force units.

Are there any issues converting between these units?

Yes, due to the tiny magnitude of attopascal and the non-SI nature of gram-force per square centimeter, numerical errors and local gravity variance can slightly affect precision.

How to Convert from Attopascal [aPa] to Gram-force/sq. centimeter

Learn how to convert pressure measurements from attopascal (aPa), a very small SI unit, to gram-force per square centimeter, a legacy non-SI unit commonly used in specialized laboratories and engineering.

Attopascal [aPa]

Gram-force/sq. centimeter

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Attopascal [aPa] to Gram-force/sq. centimeter Conversion Table

Attopascal [aPa]	Gram-force/sq. centimeter

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.

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Attopascal [aPa] to Gram-force/sq. centimeter Conversion Table
Attopascal [aPa]	Gram-force/sq. centimeter

Explore More Pressure Units Converter

What Is This Tool?

This tool assists users in converting pressure values from attopascal (aPa), suitable for extremely small pressure levels, into gram-force per square centimeter, a unit based on gravitational force commonly used in legacy and industry-specific applications.

How to Use This Tool?

Enter the pressure value in attopascal [aPa]
Select 'attopascal [aPa]' as the input unit
Choose 'gram-force/sq. centimeter' as the output unit
Click convert to see the pressure in gram-force per square centimeter

Key Features

Converts very small pressure units from attopascal to gram-force/sq. centimeter
Supports unit definitions relevant to astrophysics, vacuum technology, and legacy engineering
Browser-based and easy to use for quick pressure conversions
Includes examples for practical understanding of conversion values

Examples

5 attopascals equals approximately 5.0985810648895e-20 gram-force/sq. centimeter
10 attopascals equals approximately 1.0197162129779e-19 gram-force/sq. centimeter

Common Use Cases

Expressing extremely low pressures in astrophysics and space physics
Describing residual gas pressures in ultra-high vacuum systems
Calibrating low-pressure laboratory instruments using legacy units
Conducting material adhesion tests reported in older standards
Referencing legacy engineering documents with gravitational force–based units

Tips & Best Practices

Verify unit selection to ensure accurate conversions
Use the tool to aid compliance with standards using non-SI units
Apply examples to validate your conversion understanding
Be mindful of the very small values involved in attopascal conversions
Cross-check results when applying conversions in precise engineering contexts

Limitations

Extremely small attopascal values lead to very tiny converted numbers, which may cause rounding errors
Gram-force/sq. centimeter is a non-SI unit influenced by local gravity variations, resulting in slight variability
Conversions may be less precise compared to those strictly within SI units

Frequently Asked Questions

What is an attopascal?: An attopascal is an SI derived unit of pressure equal to 10^-18 pascal, used to measure extremely small pressure levels.
Why use gram-force per square centimeter if it is not an SI unit?: Gram-force per square centimeter is used in legacy and industry-specific situations for instrument calibration, testing, and references that rely on gravitational force units.
Are there any issues converting between these units?: Yes, due to the tiny magnitude of attopascal and the non-SI nature of gram-force per square centimeter, numerical errors and local gravity variance can slightly affect precision.

Key Terminology

Attopascal (aPa): A very small SI derived pressure unit equal to 10^-18 pascal, used for measuring extremely low force per unit area.
Gram-force per square centimeter: A non-SI pressure unit defined as the force of one gram-force applied uniformly over one square centimeter.
Conversion rate: The numerical factor used to translate pressure values from attopascal to gram-force per square centimeter.

Quick Knowledge Check

What does the attopascal measure?

Large atmospheric pressures

Extremely small pressure values

Pressure in grams-force per square inch

Why is gram-force/sq. centimeter considered a legacy unit?

Because it was replaced by torr

Because it is based on gravitational force and not an SI base unit

Because it is a metric unit

What is a common use case for converting aPa to gram-force/sq. centimeter?

To measure blood pressure in hospitals

To calibrate instruments in surface science and engineering

To calculate rocket thrust

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